Spectral Data Availibility

[Joe Prendergast]

TL;DR Summary

Looking for a reliable source of star spectral data

Does anyone know of a reliable source from which to get star spectral data (flux versus wavelength)? The best source I've found is GAIA which has spectral data for some stars but for many it does not.

 

[Tom.G]

Not my field, but try this:
https://www.google.com/search?&hl=en&q=catalog+of+stellar+spectra

Cheers,
Tom

 

[phyzguy]

The SDSS (Sloan Digital Sky Survey) has a huge amount of spectral data. Start with the navigator at https://skyserver.sdss.org/dr16/en/tools/chart/navi.aspx

Then you put in a location, and make sure the "Objects with spectra" is clicked so you know which objects have spectra. You can pan around, zoom out, etc. looking. When you see one you want to know more about, click on "Quick Look" and you will see the spectrum. You can download the data if you want. This link also helps you find more data about stars: https://skyserver.sdss.org/dr16/en/help/cooking/stars/starshome.aspx

Attached are some examples of the Navigator page and the Quick Look page.

 

[phyzguy]

Here's another SDSS link that might help you get started. https://skyserver.sdss.org/dr8/en/proj/basic/spectraltypes/studentclasses.asp

 

[Vanadium 50]

The best source I've found is GAIA which has spectral data for some stars but for many it does not.

That will be a problem no matter where you look. (But why is it a problem?) Spectroscopy is time consuming, so you normally only do it if you really need to.

 

[serenasmom]

NOIRLab has a tool called SPARCL that lets you find and retrieve spectra from SDSS DR16 and DESI EDR! There's a Jupyter notebook that shows you how to use it here: https://github.com/astro-datalab/no...ster/04_HowTos/SPARCL/How_to_use_SPARCL.ipynb
And this is the SPARCL homepage: https://astrosparcl.datalab.noirlab.edu/