Meet our Astronomers
•
0 likes•1,150 views
This document introduces four astronomers from different countries: Pedro Nunes from Portugal, Kazimieras Simonavicius from Lithuania, Ali Qushji from Turkey, and Christian Doppler from Austria. It provides basic biographical information about each astronomer and their country of origin. Contact information is also listed for students from Portugal and Lithuania who are featured in the document.
Report
Share
Report
Share
Download to read offline
Recommended
Stars - Stellar Evolution
A star is a hot ball of mostly hydrogen gas held together by gravity. In the core, nuclear fusion reactions generate energy by converting hydrogen to helium. This process is called stellar evolution. As the star's fuel is depleted, its structure changes. Stars evolve through different stages over their lifetimes, from main sequence stars to red giants or supergiants and eventually ending as white dwarfs, neutron stars, or black holes depending on their original mass.
The life cycle of a star
The document outlines the life cycle of stars from birth in nebulae of gas and dust through their main sequence phase, later evolution into red giants, and final stages as white dwarfs, neutron stars, or black holes. It describes how gravity pulls gas together in nebulae to form protostars, which become main sequence stars fueling nuclear fusion for millions of years. As hydrogen runs out in their cores, more massive stars explode as supernovae while lower mass stars expand into red giants then contract into white dwarfs.
Star Powerpoint
Stars are formed from clouds of dust and gas collapsing under gravity. They spend most of their life fusing hydrogen into helium in their cores, glowing from the heat and pressure of nuclear fusion. When stars run out of fuel to burn in their cores, they die - smaller stars may become white dwarfs, while larger stars explode as supernovae. The material from exploded stars then disperses to form new dust clouds, starting the next generation of star formation.
Agrupamento de Escolas Gil Paes
The document provides demographic information about the city of Salzburg, Austria, which has a total area of 270km2 and around 36,500 inhabitants distributed across 17 small towns. It then lists information about the 12 academic units in Salzburg, including the number of operating assistants, teachers, childhood educators, and students at each unit. In total, there are 48 operating assistants, 125 teachers, and 573 students across the 12 academic units.
Cartoons about Deep Sky
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Activities about light pollution
This document summarizes the activities of a Turkish school's Comenius team focused on raising awareness about light pollution. Some of the activities included student contests to design astronaut outfits, build 3D models of space, and construct balloon rocket experiments. Students collaborated with a local university and media outlets to measure and map light pollution in their city. They created educational materials like a dictionary and cartoon explanations of scientists. The goal was to engage students in learning about light pollution and space through hands-on projects and competitions.
Sun and the Solar System
O documento apresenta uma peça de teatro realizada por alunos sobre o Sistema Solar. A peça mostra os planetas representados como personagens discutindo sobre a destruição da Terra pelos humanos e o medo de outros planetas de sofrerem o mesmo destino. Os alunos também apresentam uma música e dança sobre o Sol.
Sun
This document appears to be a presentation about science and astronomy projects conducted by students in Turkey and Europe. It discusses students participating in a mobility program in Lithuania, then researching topics like the sun, solar and lunar eclipses, and making 3D models of the Earth, Moon, and Sun. The presentation continues describing how students studied sundials, making their own and researching famous sundials in Turkey. It concludes with students making experiments about day and night and constructing amateur telescopes.
Recommended
Stars - Stellar Evolution
A star is a hot ball of mostly hydrogen gas held together by gravity. In the core, nuclear fusion reactions generate energy by converting hydrogen to helium. This process is called stellar evolution. As the star's fuel is depleted, its structure changes. Stars evolve through different stages over their lifetimes, from main sequence stars to red giants or supergiants and eventually ending as white dwarfs, neutron stars, or black holes depending on their original mass.
The life cycle of a star
The document outlines the life cycle of stars from birth in nebulae of gas and dust through their main sequence phase, later evolution into red giants, and final stages as white dwarfs, neutron stars, or black holes. It describes how gravity pulls gas together in nebulae to form protostars, which become main sequence stars fueling nuclear fusion for millions of years. As hydrogen runs out in their cores, more massive stars explode as supernovae while lower mass stars expand into red giants then contract into white dwarfs.
Star Powerpoint
Stars are formed from clouds of dust and gas collapsing under gravity. They spend most of their life fusing hydrogen into helium in their cores, glowing from the heat and pressure of nuclear fusion. When stars run out of fuel to burn in their cores, they die - smaller stars may become white dwarfs, while larger stars explode as supernovae. The material from exploded stars then disperses to form new dust clouds, starting the next generation of star formation.
Agrupamento de Escolas Gil Paes
The document provides demographic information about the city of Salzburg, Austria, which has a total area of 270km2 and around 36,500 inhabitants distributed across 17 small towns. It then lists information about the 12 academic units in Salzburg, including the number of operating assistants, teachers, childhood educators, and students at each unit. In total, there are 48 operating assistants, 125 teachers, and 573 students across the 12 academic units.
Cartoons about Deep Sky
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Activities about light pollution
This document summarizes the activities of a Turkish school's Comenius team focused on raising awareness about light pollution. Some of the activities included student contests to design astronaut outfits, build 3D models of space, and construct balloon rocket experiments. Students collaborated with a local university and media outlets to measure and map light pollution in their city. They created educational materials like a dictionary and cartoon explanations of scientists. The goal was to engage students in learning about light pollution and space through hands-on projects and competitions.
Sun and the Solar System
O documento apresenta uma peça de teatro realizada por alunos sobre o Sistema Solar. A peça mostra os planetas representados como personagens discutindo sobre a destruição da Terra pelos humanos e o medo de outros planetas de sofrerem o mesmo destino. Os alunos também apresentam uma música e dança sobre o Sol.
Sun
This document appears to be a presentation about science and astronomy projects conducted by students in Turkey and Europe. It discusses students participating in a mobility program in Lithuania, then researching topics like the sun, solar and lunar eclipses, and making 3D models of the Earth, Moon, and Sun. The presentation continues describing how students studied sundials, making their own and researching famous sundials in Turkey. It concludes with students making experiments about day and night and constructing amateur telescopes.
The Moon
This lesson plan aims to teach primary school students about the phases of the Moon and its effect on tides. Key points include:
- The Moon orbits Earth approximately every 28 days, appearing in different phases as it circles the planet.
- The changing shapes of the Moon are caused by the varying angles between the Moon, Earth, and Sun as the Moon revolves.
- Gravity from the Moon and Sun causes ocean tides on Earth to regularly rise and fall, with stronger tides occurring during full and new Moons.
Eratosthenes
Eratosthenes was a Greek scholar who calculated the circumference of the Earth using shadows from sticks in Alexandria and Syene. He observed that on the summer solstice, a stick in Alexandria cast a shadow while a stick in Syene did not. Knowing the distance between the cities, he calculated the circumference of the Earth to within a few percent of the actual measurement. Eratosthenes made several other contributions including accurately calculating the tilt of the Earth's axis and inventing the leap day.
Light pollution
This document discusses light pollution, which is excessive or inappropriate artificial light that harms human health and wildlife. It defines light pollution and describes its causes such as inadequate lighting design and incorrect installation. The consequences of light pollution include wasted energy, air and light pollution, and negative impacts on living beings. Wildlife like birds and sea turtles are especially harmed by light pollution disrupting natural behaviors and attracting animals to light sources where they can get injured or die. Prevention methods aim to direct light downward and use efficient bulbs to reduce impacts.
Exoplanets
An exoplanet is a planet that orbits a star other than the Sun. Nearly 2000 exoplanets have been discovered orbiting other stars by detecting their gravitational influence or observing dimming of the star's light as the planet passes in front. The Kepler space telescope has been instrumental in discovering many new exoplanets using the transit method of detection, including some that may be capable of hosting life such as Gliese 581g. As exoplanet discoveries increase, interest in finding signs of life on other worlds outside our solar system continues to grow.
Nebula
Nebulae are giant clouds of dust and gas found in space where stars are formed. They can be light years across and look fuzzy in appearance. When the gas and dust in a nebula collapses under its own gravity, it forms hot, dense cores where stars ignite and shine. Some nebulae glow due to radiation from young stars, called emission nebulae. Others reflect the light of stars, known as reflection nebulae. Planetary nebulae are formed when aging stars blow off their outer layers.
Sun - Our friend or foe
The document discusses the sun's positive and negative effects on humans. Positively, the sun provides warmth, energy through photosynthesis, boosts serotonin levels and immunity. However, ultraviolet radiation from the sun can cause skin cancer, sunburns, weaken the immune system, lead to heat stroke and damage eyes and skin over time. While the sun has benefits, prolonged unprotected exposure to its UV rays poses health risks like skin cancer, so protection is recommended to harness its energy safely.
Sun
The document summarizes information about the Sun, including:
1) It is an average star that produces energy through nuclear fusion in its core and contains over 99% of the mass in the Solar System.
2) Significant variations in solar activity like sunspots and solar flares can be seen from day to day and year to year, arising from the bending and twisting of magnetic fields in the Sun's atmosphere.
3) Coronal mass ejections are powerful explosions that can eject large amounts of plasma from the Sun's corona and impact Earth's environment and technology.
Solar system
The Solar System is comprised of the Sun and objects that orbit it. It formed 4.6 billion years ago from a giant cloud. The inner terrestrial planets like Earth are rocky, while the outer giant planets like Jupiter are much larger and gaseous. The asteroid belt lies between Mars and Jupiter, containing millions of objects but only about 1% of the mass of Earth. Ceres is the largest asteroid in the belt.
Life without the Moon
If the Moon suddenly vanished:
- Earth's axis would lose stability and wobble dramatically, causing extreme temperature changes and unpredictable seasons.
- Tides would be much smaller, caused only by the Sun, disrupting marine life and coastal ecosystems.
- Earth's rotation would speed up, with day lengths shortening to 8-10 hours and winds of 160-200 km/h sweeping the surface.
- Life on Earth would struggle to adapt to the entirely different environmental conditions without the stabilizing influence of the Moon.
Dive in the Sky story
Vasco tells his mother about a dream where he and his friend Claudia took a rocket trip through space. During their journey to the moon, Claudia points out light pollution on Earth which obscures the night sky in some areas. Light pollution is harmful to animals like turtles and birds. At school, Vasco's class is working on a project about light pollution called "Dive into the Sky" which aims to reduce artificial light at night to see more stars. Vasco is enjoying learning new things through the project.
Space lesson (8 - 10 grade)
The document outlines an integrated English/Astronomy lesson plan for secondary school students about space exploration. It includes vocabulary building, a timeline fill-in-the-blank exercise about major space events, dividing students into groups to write questions about the timeline, and a question/answer activity where students test each other's knowledge in a game format. The lesson aims to teach students about space topics while practicing English vocabulary and questioning skills.
Bulgaria bilateral meeting
This document outlines the program for a bilateral meeting between schools in Bulgaria and Lithuania from July 6-10, 2015. The theme of the visit was to develop integrated astronomy and English lessons for primary and secondary schools. The schedule included a guided visit to Vasil Aprilov Primary School in Ruse, Bulgaria, a workshop for teachers to prepare lesson plans, astronomy lessons for different grade levels, visits to local museums, and an excursion to the Rock Monastery of St. Dimitar Basarbovski.
Evaluation of the project
1. Students and teachers from several European countries participated in a survey to evaluate the Comenius Multilateral Project "Dive in the Sky".
2. The results showed that students found sharing the European project, learning about partner countries, exchanging experiences with foreign students, practicing astronomy and foreign languages to be mostly good or excellent.
3. Teachers rated their relationships with partners, communication, sharing tasks and organizing visits as excellent and found the support from administrators, colleagues and students to be good.
Interacting galaxies
The document discusses simulations of galaxy interactions using the Galaxy Crash Java applet. It explores how varying simulation parameters like galaxy mass, distance of closest approach (peri), and inclination angle affect the formation of tidal tails. Increasing peri decreases tidal tail size, while larger companion galaxy mass and smaller inclination angles increase the other galaxy's tidal tail. The minimum peri to avoid disturbance was around 35-40 kpc.
Faulkes Telescope observations
The document describes images taken of various astronomical objects using telescopes from the Las Cumbres Observatory Global Telescope Network. Students and teachers can book time on the network's telescopes located in Hawaii and Australia to take photos of objects like the globular clusters NGC 5897 and M9, as well as the interacting galaxies NGC 4567 and NGC 4568. Details are provided for each image, including the date, filter used, exposure time, and telescope location.
Measuring and colouring M87
M87 is a supergiant elliptical galaxy located about 53.5 million light-years from Earth. It has a supermassive black hole at its core that powers an energetic jet of plasma extending over 5000 light-years. The document describes using image analysis software to measure the length of M87's jet, which is calculated to be over 4518 light-years based on its angular size. Color images of M87 are created by assigning red, green, and blue filters to different black and white images and aligning them using movement and zoom tools.
M61 dimension and brightness
This document analyzes and measures various properties of the M61 galaxy using the SalsaJ program. It finds that M61 has a scale of 0.3 arcsec/pixel, with a width of approximately 84,751 light-years and a height of around 85,939 light-years. The ratio of its width to height is close to 1, indicating an almost round shape. Measurements of its bulge find a size of around 6,000 light-years. The brightness is more intense at the galaxy's center and bulge.
Classifying and measuring M51
M51 is a spiral galaxy located approximately 23 million light years from Earth. It has two long, tightly wound spiral arms that are clearly defined. M51 is interacting with the smaller galaxy NGC 5195 located 25 million light years away. Using image analysis software, the diameter of M51 was measured to be approximately 63,708 light years and the diameter of one of its spiral arms was measured to be around 106,267 light years.
Discovery of An Apparent Red, High-Velocity Type Ia Supernova at 𝐳 = 2.9 wi...
We present the JWST discovery of SN 2023adsy, a transient object located in a host galaxy JADES-GS
+
53.13485
−
27.82088
with a host spectroscopic redshift of
2.903
±
0.007
. The transient was identified in deep James Webb Space Telescope (JWST)/NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADES) program. Photometric and spectroscopic followup with NIRCam and NIRSpec, respectively, confirm the redshift and yield UV-NIR light-curve, NIR color, and spectroscopic information all consistent with a Type Ia classification. Despite its classification as a likely SN Ia, SN 2023adsy is both fairly red (
�
(
�
−
�
)
∼
0.9
) despite a host galaxy with low-extinction and has a high Ca II velocity (
19
,
000
±
2
,
000
km/s) compared to the general population of SNe Ia. While these characteristics are consistent with some Ca-rich SNe Ia, particularly SN 2016hnk, SN 2023adsy is intrinsically brighter than the low-
�
Ca-rich population. Although such an object is too red for any low-
�
cosmological sample, we apply a fiducial standardization approach to SN 2023adsy and find that the SN 2023adsy luminosity distance measurement is in excellent agreement (
≲
1
�
) with
Λ
CDM. Therefore unlike low-
�
Ca-rich SNe Ia, SN 2023adsy is standardizable and gives no indication that SN Ia standardized luminosities change significantly with redshift. A larger sample of distant SNe Ia is required to determine if SN Ia population characteristics at high-
�
truly diverge from their low-
�
counterparts, and to confirm that standardized luminosities nevertheless remain constant with redshift.
Evidence of Jet Activity from the Secondary Black Hole in the OJ 287 Binary S...
Wereport the study of a huge optical intraday flare on 2021 November 12 at 2 a.m. UT in the blazar OJ287. In the binary black hole model, it is associated with an impact of the secondary black hole on the accretion disk of the primary. Our multifrequency observing campaign was set up to search for such a signature of the impact based on a prediction made 8 yr earlier. The first I-band results of the flare have already been reported by Kishore et al. (2024). Here we combine these data with our monitoring in the R-band. There is a big change in the R–I spectral index by 1.0 ±0.1 between the normal background and the flare, suggesting a new component of radiation. The polarization variation during the rise of the flare suggests the same. The limits on the source size place it most reasonably in the jet of the secondary BH. We then ask why we have not seen this phenomenon before. We show that OJ287 was never before observed with sufficient sensitivity on the night when the flare should have happened according to the binary model. We also study the probability that this flare is just an oversized example of intraday variability using the Krakow data set of intense monitoring between 2015 and 2023. We find that the occurrence of a flare of this size and rapidity is unlikely. In machine-readable Tables 1 and 2, we give the full orbit-linked historical light curve of OJ287 as well as the dense monitoring sample of Krakow.
More Related Content
More from Nelson Correia
The Moon
This lesson plan aims to teach primary school students about the phases of the Moon and its effect on tides. Key points include:
- The Moon orbits Earth approximately every 28 days, appearing in different phases as it circles the planet.
- The changing shapes of the Moon are caused by the varying angles between the Moon, Earth, and Sun as the Moon revolves.
- Gravity from the Moon and Sun causes ocean tides on Earth to regularly rise and fall, with stronger tides occurring during full and new Moons.
Eratosthenes
Eratosthenes was a Greek scholar who calculated the circumference of the Earth using shadows from sticks in Alexandria and Syene. He observed that on the summer solstice, a stick in Alexandria cast a shadow while a stick in Syene did not. Knowing the distance between the cities, he calculated the circumference of the Earth to within a few percent of the actual measurement. Eratosthenes made several other contributions including accurately calculating the tilt of the Earth's axis and inventing the leap day.
Light pollution
This document discusses light pollution, which is excessive or inappropriate artificial light that harms human health and wildlife. It defines light pollution and describes its causes such as inadequate lighting design and incorrect installation. The consequences of light pollution include wasted energy, air and light pollution, and negative impacts on living beings. Wildlife like birds and sea turtles are especially harmed by light pollution disrupting natural behaviors and attracting animals to light sources where they can get injured or die. Prevention methods aim to direct light downward and use efficient bulbs to reduce impacts.
Exoplanets
An exoplanet is a planet that orbits a star other than the Sun. Nearly 2000 exoplanets have been discovered orbiting other stars by detecting their gravitational influence or observing dimming of the star's light as the planet passes in front. The Kepler space telescope has been instrumental in discovering many new exoplanets using the transit method of detection, including some that may be capable of hosting life such as Gliese 581g. As exoplanet discoveries increase, interest in finding signs of life on other worlds outside our solar system continues to grow.
Nebula
Nebulae are giant clouds of dust and gas found in space where stars are formed. They can be light years across and look fuzzy in appearance. When the gas and dust in a nebula collapses under its own gravity, it forms hot, dense cores where stars ignite and shine. Some nebulae glow due to radiation from young stars, called emission nebulae. Others reflect the light of stars, known as reflection nebulae. Planetary nebulae are formed when aging stars blow off their outer layers.
Sun - Our friend or foe
The document discusses the sun's positive and negative effects on humans. Positively, the sun provides warmth, energy through photosynthesis, boosts serotonin levels and immunity. However, ultraviolet radiation from the sun can cause skin cancer, sunburns, weaken the immune system, lead to heat stroke and damage eyes and skin over time. While the sun has benefits, prolonged unprotected exposure to its UV rays poses health risks like skin cancer, so protection is recommended to harness its energy safely.
Sun
The document summarizes information about the Sun, including:
1) It is an average star that produces energy through nuclear fusion in its core and contains over 99% of the mass in the Solar System.
2) Significant variations in solar activity like sunspots and solar flares can be seen from day to day and year to year, arising from the bending and twisting of magnetic fields in the Sun's atmosphere.
3) Coronal mass ejections are powerful explosions that can eject large amounts of plasma from the Sun's corona and impact Earth's environment and technology.
Solar system
The Solar System is comprised of the Sun and objects that orbit it. It formed 4.6 billion years ago from a giant cloud. The inner terrestrial planets like Earth are rocky, while the outer giant planets like Jupiter are much larger and gaseous. The asteroid belt lies between Mars and Jupiter, containing millions of objects but only about 1% of the mass of Earth. Ceres is the largest asteroid in the belt.
Life without the Moon
If the Moon suddenly vanished:
- Earth's axis would lose stability and wobble dramatically, causing extreme temperature changes and unpredictable seasons.
- Tides would be much smaller, caused only by the Sun, disrupting marine life and coastal ecosystems.
- Earth's rotation would speed up, with day lengths shortening to 8-10 hours and winds of 160-200 km/h sweeping the surface.
- Life on Earth would struggle to adapt to the entirely different environmental conditions without the stabilizing influence of the Moon.
Dive in the Sky story
Vasco tells his mother about a dream where he and his friend Claudia took a rocket trip through space. During their journey to the moon, Claudia points out light pollution on Earth which obscures the night sky in some areas. Light pollution is harmful to animals like turtles and birds. At school, Vasco's class is working on a project about light pollution called "Dive into the Sky" which aims to reduce artificial light at night to see more stars. Vasco is enjoying learning new things through the project.
Space lesson (8 - 10 grade)
The document outlines an integrated English/Astronomy lesson plan for secondary school students about space exploration. It includes vocabulary building, a timeline fill-in-the-blank exercise about major space events, dividing students into groups to write questions about the timeline, and a question/answer activity where students test each other's knowledge in a game format. The lesson aims to teach students about space topics while practicing English vocabulary and questioning skills.
Bulgaria bilateral meeting
This document outlines the program for a bilateral meeting between schools in Bulgaria and Lithuania from July 6-10, 2015. The theme of the visit was to develop integrated astronomy and English lessons for primary and secondary schools. The schedule included a guided visit to Vasil Aprilov Primary School in Ruse, Bulgaria, a workshop for teachers to prepare lesson plans, astronomy lessons for different grade levels, visits to local museums, and an excursion to the Rock Monastery of St. Dimitar Basarbovski.
Evaluation of the project
1. Students and teachers from several European countries participated in a survey to evaluate the Comenius Multilateral Project "Dive in the Sky".
2. The results showed that students found sharing the European project, learning about partner countries, exchanging experiences with foreign students, practicing astronomy and foreign languages to be mostly good or excellent.
3. Teachers rated their relationships with partners, communication, sharing tasks and organizing visits as excellent and found the support from administrators, colleagues and students to be good.
Interacting galaxies
The document discusses simulations of galaxy interactions using the Galaxy Crash Java applet. It explores how varying simulation parameters like galaxy mass, distance of closest approach (peri), and inclination angle affect the formation of tidal tails. Increasing peri decreases tidal tail size, while larger companion galaxy mass and smaller inclination angles increase the other galaxy's tidal tail. The minimum peri to avoid disturbance was around 35-40 kpc.
Faulkes Telescope observations
The document describes images taken of various astronomical objects using telescopes from the Las Cumbres Observatory Global Telescope Network. Students and teachers can book time on the network's telescopes located in Hawaii and Australia to take photos of objects like the globular clusters NGC 5897 and M9, as well as the interacting galaxies NGC 4567 and NGC 4568. Details are provided for each image, including the date, filter used, exposure time, and telescope location.
Measuring and colouring M87
M87 is a supergiant elliptical galaxy located about 53.5 million light-years from Earth. It has a supermassive black hole at its core that powers an energetic jet of plasma extending over 5000 light-years. The document describes using image analysis software to measure the length of M87's jet, which is calculated to be over 4518 light-years based on its angular size. Color images of M87 are created by assigning red, green, and blue filters to different black and white images and aligning them using movement and zoom tools.
M61 dimension and brightness
This document analyzes and measures various properties of the M61 galaxy using the SalsaJ program. It finds that M61 has a scale of 0.3 arcsec/pixel, with a width of approximately 84,751 light-years and a height of around 85,939 light-years. The ratio of its width to height is close to 1, indicating an almost round shape. Measurements of its bulge find a size of around 6,000 light-years. The brightness is more intense at the galaxy's center and bulge.
Classifying and measuring M51
M51 is a spiral galaxy located approximately 23 million light years from Earth. It has two long, tightly wound spiral arms that are clearly defined. M51 is interacting with the smaller galaxy NGC 5195 located 25 million light years away. Using image analysis software, the diameter of M51 was measured to be approximately 63,708 light years and the diameter of one of its spiral arms was measured to be around 106,267 light years.
More from Nelson Correia (20)
Recently uploaded
Discovery of An Apparent Red, High-Velocity Type Ia Supernova at 𝐳 = 2.9 wi...
We present the JWST discovery of SN 2023adsy, a transient object located in a host galaxy JADES-GS
+
53.13485
−
27.82088
with a host spectroscopic redshift of
2.903
±
0.007
. The transient was identified in deep James Webb Space Telescope (JWST)/NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADES) program. Photometric and spectroscopic followup with NIRCam and NIRSpec, respectively, confirm the redshift and yield UV-NIR light-curve, NIR color, and spectroscopic information all consistent with a Type Ia classification. Despite its classification as a likely SN Ia, SN 2023adsy is both fairly red (
�
(
�
−
�
)
∼
0.9
) despite a host galaxy with low-extinction and has a high Ca II velocity (
19
,
000
±
2
,
000
km/s) compared to the general population of SNe Ia. While these characteristics are consistent with some Ca-rich SNe Ia, particularly SN 2016hnk, SN 2023adsy is intrinsically brighter than the low-
�
Ca-rich population. Although such an object is too red for any low-
�
cosmological sample, we apply a fiducial standardization approach to SN 2023adsy and find that the SN 2023adsy luminosity distance measurement is in excellent agreement (
≲
1
�
) with
Λ
CDM. Therefore unlike low-
�
Ca-rich SNe Ia, SN 2023adsy is standardizable and gives no indication that SN Ia standardized luminosities change significantly with redshift. A larger sample of distant SNe Ia is required to determine if SN Ia population characteristics at high-
�
truly diverge from their low-
�
counterparts, and to confirm that standardized luminosities nevertheless remain constant with redshift.
Evidence of Jet Activity from the Secondary Black Hole in the OJ 287 Binary S...
Wereport the study of a huge optical intraday flare on 2021 November 12 at 2 a.m. UT in the blazar OJ287. In the binary black hole model, it is associated with an impact of the secondary black hole on the accretion disk of the primary. Our multifrequency observing campaign was set up to search for such a signature of the impact based on a prediction made 8 yr earlier. The first I-band results of the flare have already been reported by Kishore et al. (2024). Here we combine these data with our monitoring in the R-band. There is a big change in the R–I spectral index by 1.0 ±0.1 between the normal background and the flare, suggesting a new component of radiation. The polarization variation during the rise of the flare suggests the same. The limits on the source size place it most reasonably in the jet of the secondary BH. We then ask why we have not seen this phenomenon before. We show that OJ287 was never before observed with sufficient sensitivity on the night when the flare should have happened according to the binary model. We also study the probability that this flare is just an oversized example of intraday variability using the Krakow data set of intense monitoring between 2015 and 2023. We find that the occurrence of a flare of this size and rapidity is unlikely. In machine-readable Tables 1 and 2, we give the full orbit-linked historical light curve of OJ287 as well as the dense monitoring sample of Krakow.
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...Scintica Instrumentation
Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.Pests of Storage_Identification_Dr.UPR.pdf
InIndia-post-harvestlosses-unscientificstorage,insects,rodents,micro-organismsetc.,accountforabout10percentoftotalfoodgrains
Graininfestation
Directdamage
Indirectly
•theexuviae,skin,deadinsects
•theirexcretawhichmakefoodunfitforhumanconsumption
About600speciesofinsectshavebeenassociatedwithstoredgrainproducts
100speciesofinsectpestsofstoredproductscauseeconomiclosses
Direct Seeded Rice - Climate Smart Agriculture
Direct Seeded Rice - Climate Smart AgricultureInternational Food Policy Research Institute- South Asia Office
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
11.1 Role of physical biological in deterioration of grains.pdf
Storagedeteriorationisanyformoflossinquantityandqualityofbio-materials.
Themajorcausesofdeteriorationinstorage
•Physical
•Biological
•Mechanical
•Chemical
Storageonlypreservesquality.Itneverimprovesquality.
Itisadvisabletostartstoragewithqualityfoodproduct.Productwithinitialpoorqualityquicklydepreciates
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Candidate young stellar objects in the S-cluster: Kinematic analysis of a sub...
Context. The observation of several L-band emission sources in the S cluster has led to a rich discussion of their nature. However, a definitive answer to the classification of the dusty objects requires an explanation for the detection of compact Doppler-shifted Brγ emission. The ionized hydrogen in combination with the observation of mid-infrared L-band continuum emission suggests that most of these sources are embedded in a dusty envelope. These embedded sources are part of the S-cluster, and their relationship to the S-stars is still under debate. To date, the question of the origin of these two populations has been vague, although all explanations favor migration processes for the individual cluster members. Aims. This work revisits the S-cluster and its dusty members orbiting the supermassive black hole SgrA* on bound Keplerian orbits from a kinematic perspective. The aim is to explore the Keplerian parameters for patterns that might imply a nonrandom distribution of the sample. Additionally, various analytical aspects are considered to address the nature of the dusty sources. Methods. Based on the photometric analysis, we estimated the individual H−K and K−L colors for the source sample and compared the results to known cluster members. The classification revealed a noticeable contrast between the S-stars and the dusty sources. To fit the flux-density distribution, we utilized the radiative transfer code HYPERION and implemented a young stellar object Class I model. We obtained the position angle from the Keplerian fit results; additionally, we analyzed the distribution of the inclinations and the longitudes of the ascending node. Results. The colors of the dusty sources suggest a stellar nature consistent with the spectral energy distribution in the near and midinfrared domains. Furthermore, the evaporation timescales of dusty and gaseous clumps in the vicinity of SgrA* are much shorter ( 2yr) than the epochs covered by the observations (≈15yr). In addition to the strong evidence for the stellar classification of the D-sources, we also find a clear disk-like pattern following the arrangements of S-stars proposed in the literature. Furthermore, we find a global intrinsic inclination for all dusty sources of 60 ± 20◦, implying a common formation process. Conclusions. The pattern of the dusty sources manifested in the distribution of the position angles, inclinations, and longitudes of the ascending node strongly suggests two different scenarios: the main-sequence stars and the dusty stellar S-cluster sources share a common formation history or migrated with a similar formation channel in the vicinity of SgrA*. Alternatively, the gravitational influence of SgrA* in combination with a massive perturber, such as a putative intermediate mass black hole in the IRS 13 cluster, forces the dusty objects and S-stars to follow a particular orbital arrangement. Key words. stars: black holes– stars: formation– Galaxy: center– galaxies: star formation
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
fermented food science of sauerkraut.pptx
This ppt contains the production of a fermented food name - sauerkraut
Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Summary Of transcription and Translation.pdf
Hello Everyone Here We are Sharing You with The process of protien Synthesis in very short points you will be Able to understand It Very well
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
Recently uploaded (20)
Discovery of An Apparent Red, High-Velocity Type Ia Supernova at 𝐳 = 2.9 wi...
Discovery of An Apparent Red, High-Velocity Type Ia Supernova at 𝐳 = 2.9 wi...
Evidence of Jet Activity from the Secondary Black Hole in the OJ 287 Binary S...
Evidence of Jet Activity from the Secondary Black Hole in the OJ 287 Binary S...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
Compexometric titration/Chelatorphy titration/chelating titration
Compexometric titration/Chelatorphy titration/chelating titration
11.1 Role of physical biological in deterioration of grains.pdf
11.1 Role of physical biological in deterioration of grains.pdf
Juaristi, Jon. - El canon espanol. El legado de la cultura española a la civi...
Juaristi, Jon. - El canon espanol. El legado de la cultura española a la civi...
Candidate young stellar objects in the S-cluster: Kinematic analysis of a sub...
Candidate young stellar objects in the S-cluster: Kinematic analysis of a sub...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
The cost of acquiring information by natural selection
The cost of acquiring information by natural selection
Tissue fluids_etiology_volume regulation_pressure.pptx
Tissue fluids_etiology_volume regulation_pressure.pptx
Immersive Learning That Works: Research Grounding and Paths Forward
Immersive Learning That Works: Research Grounding and Paths Forward
Meet our Astronomers
- 1. 1 Comenius "Dive in the Sky" Meet Our Astronomers Featuring: Pedro Nunes (Portugal) Kazimieras Simonavicius (Lithuania) Ali Qushji (Turkey) Christian Doppler (Austria)
- 2. Pedro Nunes
- 3. Eduarda Leal Inês Ferreira Escola Básica Manuel de Figueiredo Agrupamento de Escolas Gil Paes Portugal
- 4. Kazimieras Simonavičius Martynas Bacevičius Lina Dovydienė Kaunas „Vyturys“ high school Lithuania
- 5. Kazimieras Simonavičius Martynas Bacevičius Lina Dovydienė Kaunas „Vyturys“ high school Lithuania
- 7. http://Pixton.com/hq:wf7gnw15 Austria He is on the ship, because he is ill. Where is the scientist from Turkey?