All Questions
Tagged with photometry astrophysics
9 questions
1
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20
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cross-matched SDSS-WISE catalog
Please where can I find cross-matched SDSS and WISE dataset for a machine learning project?
(Galaxy-star-qso classification task)
3
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0
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45
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Why MIT's Benjamin Rackham says "nearby ultracool dwarf SPECULOOS-3" would look "purplish-red, spotted, and flaring" from an airless orbiting planet?
May 15, 2024 MIT News article Newly discovered Earth-sized planet may lack an atmosphere includes the following:
“We can say from our spectra and other observations that the star has a temperature of ...
- 30.7k
2
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0
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65
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What could these LMC objects in this color-color diagram be?
I have performed a color-color and colour-magnitude plot of various sources detected in an LMC image (JWST NIRCAM F200W, F150W and F115W filters). I then also queried SIMBAD to collect relevant ...
- 21
2
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49
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How do I calculate the flux density of a substellar object?
I am currently trying to generate photometric passband colors for brown dwarfs and planets generated through MESA (Modules for Experiments in Stellar Astrophysics). I believe I understand the ...
- 61
1
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46
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Procedure to construct a spectral energy distribution and bolometric light curve of supernovae?
Can anyone check the logic of this proposed workflow and/or point me in the direction of a guide and example to check my work?
Proposed procedure to construct a spectral energy distribution and ...
- 11
1
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98
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How to convert Log(g) vs T_eff to y vs (v-y)?
I have a plot in Log(g) vs T_eff coordinates from my stellar evolution model. The parameters of the model are M=0.8 M_solar, [Fe/H]=-1.19, Y=0.245. I want to convert it to the y vs (v-y) coordinates (...
- 185
5
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1
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376
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What is equation of straight line for a ideal blackbody on the color color diagram?
The color-color diagram is a plot between $U-B$ vs $B-V$ values.
For a ideal blackbody, what is the equation of this line?
In other words, what does the linear relation between $U-B$ and $B-V$ look ...
- 308
2
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2
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195
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What is the unit used for star brightness due to skyglow?
What is the name and unit of the quantity in which star brightness due to skyglow is measured? How can it be measured from RAW image files of stars?
0
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1
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290
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How to create synthetic test images of stars?
Is there any python/IDL code available to create synthetic test images of stars with and without background noise?
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