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Be star IP Per h-alpha evolution

Posted: Thu Jan 22, 2015 8:38 pm
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 4543 times
Can anyone confirm it with a better resolution spectrum?

Thank you.

Umberto

Re: Be star IP Per h-alpha evolution

Posted: Wed Mar 11, 2015 9:25 pm
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

Re: Be star IP Per h-alpha evolution

Posted: Sun Mar 15, 2015 10:09 pm
by umberto sollecchia
Hello Robin, thanks for your cooperation.
Greetings Umberto