Be star IP Per h-alpha evolution

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umberto sollecchia
Posts: 242
Joined: Tue Dec 30, 2014 3:25 pm

Be star IP Per h-alpha evolution

Post by umberto sollecchia »

Hi all, recently I'm dedicated to the monitoring of faint Be stars with a low power resolving spectrograph, with the aim to verify any large changes.
I would like to report a possible h-alpha line evolution (decrease) for IP Per. Here you find a comparison with a previous BeSS spectrum.
comparison IP Per.png
comparison IP Per.png (7.35 KiB) Viewed 4076 times
Can anyone confirm it with a better resolution spectrum?

Thank you.

Umberto
Robin Leadbeater
Posts: 1926
Joined: Mon Sep 26, 2011 4:41 pm
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Re: Be star IP Per h-alpha evolution

Post by Robin Leadbeater »

Hello Umberto,

I checked this star last night (LHIRES 1200 R~5500) The emission now looks similar to that recorded in 2012. Sorry I did not check it earlier

Cheers
Robin
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_ipper_20150310_786_Leadbeater.png
_ipper_20150310_786_Leadbeater.png (10.27 KiB) Viewed 3929 times
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
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umberto sollecchia
Posts: 242
Joined: Tue Dec 30, 2014 3:25 pm

Re: Be star IP Per h-alpha evolution

Post by umberto sollecchia »

Hello Robin, thanks for your cooperation.
Greetings Umberto
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