#scichallenge2017 Resonating glass
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A wineglass partially filled with liquid will resonate when exposed to the sound of a loudspeaker. This Phenomenon must be investigated in dependency of different wineglass parameters.#scichallenge2017
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+
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 (
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(
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−
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)
∼
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-
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Ca-rich population. Although such an object is too red for any low-
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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
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) with
Λ
CDM. Therefore unlike low-
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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-
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truly diverge from their low-
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did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
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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.
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Dennis Ritchie, a computer scientist, was able to identify the gaps and tap out the best features from both B and BCPL languages to invent a new hybrid.
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#scichallenge2017 Resonating glass
- 2. Task • A wine glass partially filled with liquid will resonate when exposed to the sound of a loudspeaker. Investigate how the phenomenon depends on various parameters. 2
- 3. 3 Basic explanation • Harmonic damped driven oscillator: sound excites glass at resonance frequency Wine glass: resonance body, influenced by • Glass itself: size, volume • Liquid: amount of liquid, different liquids Task: investigate resonance frequency in dependency of wine glass parameters A wine glass partially filled with liquid will resonate when exposed to the sound of a loudspeaker. Investigate how the phenomenon depends on various parameters.
- 4. 4 Theoretical model Assumptions: Harmonic, damped, driven osscillation 𝑚 𝑥 + 𝑏 𝑥 + 𝑐𝑥 = 𝐹sin(Ω𝑡) 𝑥 + 𝑏 𝑚 𝑥 + 𝑐 𝑚 𝑥 = 𝐹 𝑚 sin(Ω𝑡) Harmonic: 𝜔 = 𝑐 𝑚 eigenfrequency Damping: 𝛿 = 𝑏 2𝑚 friction: glass, air, liquid, amount of liquid Driven: 𝐹𝑠𝑖𝑛(Ω𝑡) loudspeaker: 𝐹 „amplitude“, Ω frequency
- 5. First experimental setup 5 Amplifier Sine Generator Stroboscope Camera Loudspeaker Glass Measuring Glass
- 6. Visual data analysis 6Made with open source program „Tracker“
- 7. 7 Improved experimental setup Thanks to faculty of Engeneering of TU Munich Laser Glass Reflector-Spray Cellular material Signal-Decodor Loudspeaker Laptop
- 8. Data analysis 8Vibsoft 5.2.2 licence by TU Munich
- 9. Different resonance frequencies 9 0.00E+00 2.00E-07 4.00E-07 6.00E-07 8.00E-07 1.00E-06 1.20E-06 1.40E-06 0 1000 2000 3000 4000 5000 6000 7000 v/(m/s) f/Hz glass1_500ml_H2O
- 10. Two different frequencies 10 468Hz 470Hz When you look at the peaks on the slide before more precious you can see the glass resonates at two frequencies with a difference of only 2 or 3 Hertz. That is because the glass is assymetric.
- 11. Interference of the oscillations 11
- 12. Parameter: amount of liquid 12 𝜔 = 𝑐 𝑚 390 400 410 420 430 440 450 460 470 480 0 50 100 150 200 250 300 350 400 450 resonancefrequencyinHz filling in ml glass 1
- 13. Glass parameters -Different wine glasses 13 Glass 1 Glass 2 Glass 3 Whole height: Total filling height: Diameter upper glass: Diameter glass wall: 0,227m 0,124m 0,068m 0,0006m 0,225m 0,109m 0,076m 0,0013m 0,197m 0,097m 0,026m 0.0008m
- 14. Parameter: different glasses 14 𝜔 = 𝑐 𝑚 350 400 450 500 550 600 650 700 750 0 100 200 300 400 500 600 resonancefrequencyinHz filling in ml different glasses Glas 1 Glas 2 Glas 3 1 2 3
- 15. Calculation of resonance frequency 15 Simplification: glass as hollow cylinder v = 𝑓λ = π𝑢𝑓𝑑 3 1 2 λ = π𝑟 f = 𝑑𝑢 3π𝑟2 r = radius f = frequency λ = wavelength u = sound velocity d = thickness glass wall Problem: cylinder has a different form height is not exactly fixed filling is not included http://www.ucke.de/christian/physik/ftp/lectures/ Glockenklang.pdf
- 16. Theory - Experiment - comparison 16 Simplification: glass as hollow cylinder Frequency calculated: Frequency meassured: Glass 1 Glass 2 Glass 3 496Hz 468Hz 860Hz 586Hz 795Hz 715Hz
- 17. Damping – Parameter: liquid 17 Glass 1 100ml WATER 468Hz Glass 1 100ml GLYCERIN 468Hz 𝛿 = 𝑏 2𝑚
- 18. Frequency: conclusion 18 Dependent on: glass itself, filling amount Independent of: liquid
- 19. Conclusion 19 Multiple setups Approximate analysis 𝑚 𝑥 + 𝑏 𝑥 + 𝑐𝑥 = 𝐹sin(Ω𝑡) Theoretical model Frequency Dependent on: glass itself, filling volume Independent of: liquid Calculation of frequency f = 𝑑𝑢 3π𝑟2
- 20. Thank you for your attention! 20