Transient in vulpecula

Information about outbursts of eruptive stars, Be activity, ...
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Francisco Campos
Posts: 88
Joined: Sun Nov 29, 2015 10:13 pm

Transient in vulpecula

Post by Francisco Campos »

Hello,

there is a new alert in the AAVSO page about a new transient in vulpecula: PNV J20422233+2712111

The new object brights of mag. 11 and has been discovered by two independent Japanese observers. I have tried to observe this new object in the morning (sorry, i noticed this one exactly past night, when I was closing the observatory and going to sleep) and, effectively, the new object is present.

I took a low resolution spectrum but morning surprised me, so the spectrum (2x600s) is very noisy and with few features. A gaussian filter shows only weak Balmer absortion (H-gamma and delta) and a maximun intensiti near 4000 A.

It remembers me a dwarf nova near the maximun...

Sent this spectrum to the AAVSO forum, I'm going to sleep a bit...

Greetings
Fran
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pnvj20422233+2712111_ 20170414_170_FPC.png
Francois Teyssier
Posts: 1520
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
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Re: Transient in vulpecula

Post by Francois Teyssier »

Excellent reactivity!

Yes, it looks like a cataclysmicin outburst

Congratulations,

François
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