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Astronomical
Spectroscopy
Deepanshu Sharma
Integrated M.tech
(Bioinformatics & Biotechnology)
Converging Technology
...a t...
What is the use of
spectroscopy in
Astronomical
observations?
‘cause we need a
language to
communicate with the
universe!
Spectroscopy can be used to derive many
properties of distant stars and galaxies,
such as:
 Chemical composition
 Temper...
Spectroscopy can be used to derive many
properties of distant stars and galaxies,
such as:
 Chemical composition
 Temper...
But we are on a planet which interrupt
in our communication with the
universe.
But we are on a planet which interrupt
in our communication with the
universe.
“Atmosphere and Ozone layer”
Ozone (O3) and molecular oxygen
(O2) absorb light with wavelengths
under 300 nm, meaning that X-ray
and ultraviolet spectr...
Infrared light is absorbed by
atmospheric water and carbon
dioxide.
Satellites are required to record
much of the infrared...
Spectroscopical
Analysis
NGC 7009
“Saturn Nebula”
Finding a new
‘Mother Earth’
The reflected light of a planet contains absorption
bands due to minerals in the rocks presen...
Mars..
and the hope
to develop
a new Earth
MAVEN
Credit: NASA/JPL
(Alpha Particle X-Ray
Soectrometer)
(Chemistry & Mineralogy X-Ray
Diffraction)
(Sample Analysis at Mars
instrument suit)
Credit: NASA/JPL
Mineral form of
iron(III) oxide (Fe2O3)
Sometimes, few rocks can not be
drilled out directly.
So we use another instrument –
Future Advancements in
Astronomical Spectroscopy
Future Advancements in
Astronomical Spectroscopy
Thank You
“somewhere, something
incredible
is waiting to be known”
- Dr. Carl Sagan
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
Astronomical spectroscopy
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Astronomical spectroscopy

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Astronomical spectroscopy

  1. 1. Astronomical Spectroscopy Deepanshu Sharma Integrated M.tech (Bioinformatics & Biotechnology) Converging Technology ...a tool to see the Universe
  2. 2. What is the use of spectroscopy in Astronomical observations?
  3. 3. ‘cause we need a language to communicate with the universe!
  4. 4. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as:  Chemical composition  Temperature  Density  Mass  Distance  Luminosity  Relative motion
  5. 5. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as:  Chemical composition  Temperature  Density  Mass  Distance  Luminosity  Relative motion Astrobiology
  6. 6. But we are on a planet which interrupt in our communication with the universe.
  7. 7. But we are on a planet which interrupt in our communication with the universe. “Atmosphere and Ozone layer”
  8. 8. Ozone (O3) and molecular oxygen (O2) absorb light with wavelengths under 300 nm, meaning that X-ray and ultraviolet spectroscopy require the use of a satellite telescope or rocket mounted detectors.
  9. 9. Infrared light is absorbed by atmospheric water and carbon dioxide. Satellites are required to record much of the infrared spectrum.
  10. 10. Spectroscopical Analysis
  11. 11. NGC 7009 “Saturn Nebula”
  12. 12. Finding a new ‘Mother Earth’ The reflected light of a planet contains absorption bands due to minerals in the rocks present for rocky bodies, or due to the elements and molecules present in the atmosphere. Till date over 3,500 exoplanets have been discovered. These include so-called Hot Jupiters, as well as Earth-like planets. Using spectroscopy, compounds such as alkali metals, water vapor, carbon monoxide, carbon dioxide, and methane have all been discovered.
  13. 13. Mars.. and the hope to develop a new Earth
  14. 14. MAVEN
  15. 15. Credit: NASA/JPL
  16. 16. (Alpha Particle X-Ray Soectrometer) (Chemistry & Mineralogy X-Ray Diffraction) (Sample Analysis at Mars instrument suit)
  17. 17. Credit: NASA/JPL
  18. 18. Mineral form of iron(III) oxide (Fe2O3)
  19. 19. Sometimes, few rocks can not be drilled out directly. So we use another instrument –
  20. 20. Future Advancements in Astronomical Spectroscopy
  21. 21. Future Advancements in Astronomical Spectroscopy
  22. 22. Thank You “somewhere, something incredible is waiting to be known” - Dr. Carl Sagan

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