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Psi Persei and Phi Persei, spectroscopy

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#1 old_frankland

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Posted 22 September 2017 - 04:26 PM

Psi and Phi Persei. Be shell stars with prominent emission lines in both the H-Balmer, H-alpha and H-beta, and a number of Fe II lines. Much the same as what I have been posting, so I will spare you a wordy post.

 

psi-persei_phi-persei_shell-stars_jferre

 

psi-persei_phi-persei_shell-stars_jferre

 

psi-per_calib-response_jferreira_18sep20

 


  • jeremiah2229 likes this

#2 Olivier Thizy

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Posted 25 September 2017 - 09:45 PM

Hello,

 

 

I took recent spectra of phi Per and psi Per (they are in BeSS Be Star Spectra database). phi Per shows clear changes in the Halpha emission between august and september; psi Per emission is more intense as per this graph:

 

graph_phiper_20170922_026_full.png

 

 

I liked your iron FeII emission lines so I looked at rhem and found them with very shape:

 

graph_phiper_20170922_026_full2.png

 

 

Cordialement,

Olivier



#3 old_frankland

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Posted 26 September 2017 - 03:25 PM

Fe II  at 5169 in the Psi Per spectrum is an excellent example of a shell line with the central absorption dipping well below continuum level.  Very pronounce change in Phi Per H-alpha V/R.   Excellent stuff, Olivier.  That echelle spectrograph is most impressive.  Keep it coming!




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