[vsnet-alert 15742] ASASSN-13ak
Taichi Kato
tkato at kusastro.kyoto-u.ac.jp
Fri May 24 09:30:23 JST 2013
Past outbursts were detected by CRTS (max 14.8,
CSS J174827.9+505038).
SDSS J174827.88+505039.7: blue object (short Porb is expected)
possible ROSAT ID:
174827.0 +505052 (2000.0) 1RXS-F_J174827.1+505053 0.011 1.00 0.05
===
ATEL #5082 ATEL #5082
Title: ASAS-SN Discovery of a Bright CV Candidate
Author: K. Z. Stanek, B. J. Shappee, C. S. Kochanek, J. Jencson, A.
Talabere, J. F. Beacom (Ohio State), J. L. Prieto (Princeton), D.
Szczygiel, G. Pojmanski (Warsaw University Observatory), M. Dubberley,
M. Elphick, S. Foale, E. Hawkins, D. Mullens, W. Rosing, R. Ross,
Z. Walker (Las Cumbres Observatory)
Queries: stanek.32 at osu.edu
Posted: 23 May 2013; 22:33 UT
Subjects:Optical, Cataclysmic Variable, Transient
During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN or
"Assassin"), using data from the double 14-cm "Brutus" telescope in
Haleakala, Hawaii, we discovered a new transient source:
Object RA (J2000) DEC (J2000) Disc. UT Date Approx. Disc.
V mag
ASASSN-13ak 17:48:27.85 +50:50:40.3 2013 May 23.46 15.4
ASASSN-13ak was present in images obtained 2013 UT May 23.46 but
undetected (V > 17) on 2013 UT May 2.5 and earlier (we had a gap in
our May 2013 time coverage due to a technical problem). Vizier reveals
an optical source with B = 19.8 detected 0.6" from our ASAS-SN
position in the USNO-B1 catalog (there is also a 0.6" SDSS match with
a blue, g=19.9 star). There are no galaxies near the position of
ASASSN-13ak. ASASSN-13ak is a likely CV in outburst.
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