Request for spectra – ASASSN-18abl (at2018jsc)

This topic has 2 replies, 2 voices, and was last updated 5 years, 11 months ago by David Boyd.

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13 December 2018 at 4:43 pm #574202

Robin Leadbeater
Participant

I have had a request for spectra of this star from Prof Subo Dong of the ASSASN team. This star was not thought to be variable but has brightened by suddenly by ~3 mag to ~ mag 12. I plan to try tonight but I have thin high cloud currently.

https://wis-tns.weizmann.ac.il/object/2018jsc

http://www.cbat.eps.harvard.edu/unconf/followups/J03005508+1802290.html

An image here

http://meineko.sakura.ne.jp/ccd/TCP_J03005508+1802290.jpg

Robin

13 December 2018 at 8:44 pm #580395

Robin Leadbeater
Participant

An ALPY 600 spectrum in poor conditions (thin cloud) shows a blue continuum, weak H beta and gamma in absorption and no detectable H alpha

13 December 2018 at 10:52 pm #580396

David Boyd
Participant

LISA spectrum, 4500 sec integration, very similar to Robin’s above.

According to a recent email to the CBA group by Tonny Vanmunster reporting observation of superhumps, it is a probably an AM CVn type dwarf nova.

David
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