[vsnet-alert 15742] ASASSN-13ak

[Taichi Kato]

   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.