Z CMa in outburst

Information about outbursts of eruptive stars, Be activity, ...
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Francois Teyssier
Posts: 1520
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
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Z CMa in outburst

Post by Francois Teyssier »

The Herbig Ae/Be Star is in outburst at mag ~ 8
ZCMa_AAVSO.PNG
ZCMa_AAVSO.PNG (25.31 KiB) Viewed 4342 times
See previous observations on ARAS Page http://www.astrosurf.com/aras/surveys/p ... /zcma.html

François
Francisco Campos
Posts: 88
Joined: Sun Nov 29, 2015 10:13 pm

Re: Z CMa in outburst

Post by Francisco Campos »

Hello,

yesterday I took a spectra of Z CMa. I used HD 59984 (F5 V) as comparison star to correct the instrumental response. I think it is a very interesting spectra :)
z cma-20160111.jpg
The P-Cygni profile observed in the H-beta line (10.27 A between both peaks) suggests an expansion speed of 630 km/s (I hope this result to be correct, please correct me if not).

Greetings
Fran
Tim Lester
Posts: 168
Joined: Fri Apr 04, 2014 6:31 pm
Location: Arnprior Ontario

Re: Z CMa in outburst

Post by Tim Lester »

Here is Z CMa for Jan 23rd (R=9000 centered on Ha) V Mag from AAVSO was ~ 8.3.
Ambient temp was -15C. Struggling with equipment issues on these very cold clear Jan/Feb nights that can get down below -20C.
Electrical cabling gets very stiff and breaks at the connectors. I'm thinking about using a thermal blanket over the spectrograph to keep it above -15C.
_zcma_20160123_150_tlester.png
_zcma_20160123_150_tlester.png (7.49 KiB) Viewed 4244 times
Tim
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