[vsnet-alert 19230] ASASSN-15si

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Wed Nov 4 11:34:15 JST 2015


ASASSN-15si

   According to Maeda-san, this object faded to 19.3 mag
on Nov. 3.  Tonny Vanmunster also reported rapid fading
with modulations (unrelated to orbital humps?).
The fading rate is too large for an ordinary dwarf nova.
The blue colors in the SDSS data may suggest an AM CVn-type
object.  Spectroscopic observations are encouraged.

ASASSN-15si 	--- 	------- 	1:32:53.21 	24:14:52.2 	2015-11-2.47 	15.62 	SDSS 	DSS 	VIZIER 	------- 	CV candidate, Matches to SDSS g=19.3 source, previous outbursts in CRTS, V>16.6 on 2015-10-29.40, V=17.1 on 2015-11-01.48, V=15.8 on 2015-11-02.47.

ASASSN-15si 20151029.40 <166V ASN
ASASSN-15si 20151101.48 171V ASN
ASASSN-15si 20151102.47 158V ASN



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