How to find interesting solar spectral lines?

Wah · Post by **Wah** » Mon Dec 09, 2013 12:34 am

There are thousands of spectral lines in the solar spectrum, how do you guys find those interesting ones? I've been struggling searching from google even just for H-beta…

Post by **Merlin66** » Mon Dec 09, 2013 1:01 am

Two books I recommend as reference:
"Astrophysics of the Sun" by Harold Zirin, and "Guide to the Sun" by Kenneth J H Phillips.

The most interesting lines seem to be the Chromosphere Ha, CaK (k1-k2-k3)then there's the higher temperature MgIIk line (k1-k2-k3) also the HeI D3, NaI D, and MgIb

The red/blue "wings" of Ha are at a lower surface height (300km) than the core (1500Km) so have the potential to give different data.

Wah · Post by **Wah** » Mon Dec 09, 2013 1:09 am

Is there any textbook spectrum can point out where these lines are?
I have difficulty to find them out from the realtime images of the camera, especially the camera is a B/W one.

Post by **Merlin66** » Mon Dec 09, 2013 1:20 am

Use the Liege Solar Spectral Atlas to find where you are and identify all the solar lines (!!)
http://fermi.jhuapl.edu/liege/s02_0000.html
The BASS has a printout of the whole solar spectrum, annotated, this also helps...
http://bass2000.obspm.fr/solar_spect.php?step=1

Wah · Post by **Wah** » Mon Dec 09, 2013 1:46 am

That's cool!!!
Let me try next time!

Wah · Post by **Wah** » Mon Dec 09, 2013 2:00 am

I just checked my spectrum near CaK, the resolution is better than Level 4 and worse than Level 5
http://fermi.jhuapl.edu/liege/s05_0003.html

Wah · Post by **Wah** » Mon Jan 13, 2014 4:02 am

Just found an informative website, don't know if you know it before:
http://www.nist.gov/pml/data/handbook/index.cfm

swisswalter · Post by **swisswalter** » Mon Jan 13, 2014 5:20 am

Hi Wah

thanks for the interesting links

Nick · Post by **Nick** » Tue Jan 14, 2014 8:29 pm

For standard gas discharge spectra, this is good:
http://astro.u-strasbg.fr/~koppen/discharge/

How to find interesting solar spectral lines?

How to find interesting solar spectral lines?

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Re: How to find interesting solar spectral lines?

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