[vsnet-alert 23967] Re: omega Ori outburst?

Robin Leadbeater robin at threehillsobservatory.co.uk
Fri Feb 14 22:50:27 JST 2020


Correction: There is some indication of increased emission in the wings of 
the H alpha line at a velocity ~350km/s

-----Original Message----- 
From: Robin Leadbeater
Sent: Friday, February 14, 2020 12:45 PM
To: vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
Subject: [vsnet-alert 23966] Re: omega Ori outburst?

There was no significant change in the spectrum at H alpha between 20191203
and 20200115

http://basebe.obspm.fr/basebe/Spectres_png/S021/sp_0218760.png
http://basebe.obspm.fr/basebe/Spectres_png/S022/sp_0221134.png

Spectra from the BeSS database
http://basebe.obspm.fr

I have copied the alert to spectro-l at yahoogroups.com

Robin

-----Original Message----- 
From: Hiroyuki Maehara
Sent: Friday, February 14, 2020 12:19 PM
To: vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
Subject: [vsnet-alert 23965] Re: omega Ori outburst?

According to the recent KWS data, omega Ori has been observed ~0.06-0.07 mag
brighter in V-band and ~0.13-0.14 mag brighter in Ic-band since Jan 10
compared
to the KWS observations performed between October and December.

http://kws.cetus-net.org/~maehara/VSdata.py?object=omega+Ori&resolver=&plot=1&obs_ys=2019&obs_ms=09&obs_ds=01&obs_ye=&obs_me=&obs_de=&submit=Send+query
#Note: This object is close to the saturation limit in our V-band survey
images.

> -----Original Message-----
> From: vsnet-alert <vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp> On 
> Behalf Of Taichi Kato
> Sent: Friday, February 14, 2020 8:53 AM
> To: variable_star_forum at yahoogroups.com; 
> vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp; vsnet-alert at yahoogroups.com
> Subject: [vsnet-alert 23962] omega Ori outburst?
>
> omega Ori outburst?
>
>    Y. Watanabe-san reported that omega Ori (Be star) was
> observed 0.2-0.3 mag brighter than usual on Feb. 13.
> Confirmatory observations (photometry, spectroscopy)
> are required. 



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