bet Cep in emission

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Olivier Thizy
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Joined: Sat Sep 24, 2011 10:52 am
Location: in the french Alps...
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bet Cep in emission

Post by Olivier Thizy »

Hello,


My spectrum of beta Cephei taken in july showed an emission while spectrum from 2014 didn't (one from Olivier Garde in 2015 seems to show something).
I have taken another spectrum tonight and change seems slow:
graph_betcep_20160911_833_full.png
Note that spectra have been corrected from heliocentric velocity as well as the radial velocity from CDS catalog, explaining the difference in telluric lines between he two dates...


Cordialement,
Olivier
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