[vsnet-alert 16286] Re: ASASSN-13cg
Denis Denisenko
d.v.denisenko at gmail.com
Wed Aug 28 20:31:29 JST 2013
Outburst has started on Aug. 23, as shown by MASTER observations
(unfiltered magnitudes calibrated against 0.2*B+0.8*R from USNO-B1.0):
ASASSN-13cg
20130823.873 13.09C MASTER-Kislovodsk
20130823.879 13.16C MASTER-Kislovodsk
20130823.880 13.21C MASTER-Kislovodsk
20130823.881 13.26C MASTER-Kislovodsk
20130824.718 13.53C MASTER-Kislovodsk
Object has many IDs in various catalogs:
SDSS J205252.73-023952.9 u=18.15 g=18.34 r=18.25 i=18.36 z=18.36
GALEX J205252.7-023953 FUV=18.48+/-0.10 NUV=18.47+/-0.03
USNO-B1.0 0873-0753320 20 52 52.728 -02 39 52.67 pmRA=26 pmDE=-10 B1=18.01
R1=17.65 B2=18.66 R2=18.63 I=18.49
USNO-A2.0 0825-18802572 20 52 52.66 -02 39 51.8 R=17.6 B=17.6
No previous outbursts were detected on 83 NEAT images obtained on 30
different nights from 1997 Aug. 02 to 2005 Aug. 21, as well as on 12 DSS
plates from 1953 to 1999. Object seems to be an AM CVn-type dwarf nova,
indeed!
Denis Denisenko
Member of MASTER team at SAI MSU
On Wed, Aug 28, 2013 at 4:27 AM, Taichi Kato
<tkato at kusastro.kyoto-u.ac.jp>wrote:
> ASASSN-13cg
>
> No outburst was recorded in CRTS.
> The SDSS object is indeed blue (no hint of the secondary
> contribution) and u-g = -0.2.
> The object naturally deserves further observation
> (time-resolved photometry and spectroscopy), since it may be
> an AM CVn-type or an EI Psc-like object.
>
More information about the vsnet-alert
mailing list