v694 Mon

Information about outbursts of eruptive stars, Be activity, ...
Peter Somogyi
Posts: 420
Joined: Sun Jul 13, 2014 8:56 am

Re: v694 Mon

Post by Peter Somogyi »

Yesterdays shot, 7 x 10 minute (just above the trees, observeability will end soon, blue got very hard):
yesterday state
yesterday state
v694mon_20160211_vs_0411.jpg (62.85 KiB) Viewed 3502 times
interesting to see the FeII absorption feature pattern matching right the 2 months ago state (that was not so hard to spot: feature got very deep again).
Otherwise the patterns look to be changing considerably only by 0.5-1 day, so far couldn't find other shorter term variation above noise than Balmer lines emission.

Peter
AndyWilson
Posts: 31
Joined: Wed Feb 18, 2015 9:02 am

Re: v694 Mon

Post by AndyWilson »

Here is a comparison of 3 high resolution H-alpha spectra covering about a month in time. I've labelled what appear to be some subtle changes in the profile. As the spectra are not flux calibrated I'm not sure how much confidence to give to the slight increase in H-alpha intensity and width.
V0694 Mon H-alpha
V0694 Mon H-alpha
V696Mon_20160412_v2.bass.jpg (61.42 KiB) Viewed 3484 times
This has been a fascinating star to observe, though this may now be my last spectrum until it becomes more favourable again.
Andy
LHIRESIII L200 SXVR-H694 10" F8 RC AP1200
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