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Old 06-10-2012, 12:14 PM
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Terry B
Country living & viewing

Terry B is offline
 
Join Date: Mar 2006
Location: Armidale
Posts: 2,790
What is in 30 Dor?

Dear All
I took a spectra of the centre of 30 Dor a couple of nights ago with my LISA spectrograph.
The first image is from the guider showing where the slit of the spectrograph is positioned.
http://www.iceinspace.com.au/forum/a...1&d=1349489329

The light that hits the black line(the slit) in the image passes through the slit and then goes on to make the spectrum.

http://www.iceinspace.com.au/forum/a...1&d=1349489484

You can clearly see the spectra of the stars in the middle of the image plus the lines of the emission cloud surrounding them.
The graph is below
http://www.iceinspace.com.au/forum/a...1&d=1349489484
I have labelled the emission lines. The absorption lines in the IR region are all from atmospheric water and are not part of the stars spectra.
Cheers

Terry
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