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Bright, High-Amplitude CV Candidate Discovered by ASAS-SN

ATel #6608; G. Simonian, K. Z. Stanek, A. B. Davis, T. W.-S. Holoien, C. S. Kochanek, U. Basu, J. F. Beacom (Ohio State), B. J. Shappee (Hubble Fellow, Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), D. Bersier (LJMU), J. Brimacombe (Coral Towers Observatory), D. Szczygiel, G. Pojmanski (Warsaw University Observatory)
on 22 Oct 2014; 18:23 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Krzysztof Stanek (stanek.32@osu.edu)

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 "Cassius" telescope in Cerro Tololo, Chile, we discovered a new transient source in the constellation of Pictor:

 
Object        RA (J2000)    DEC (J2000)     Disc. UT Date   Disc. V mag 
ASASSN-14jf   06:06:02.72   -60:39:41.0     2014-10-22.34      13.3 
ASASSN-14jf was discovered at V=13.3 in "Cassius" images taken on 2014-10-22.34, and it is also detected in images taken on 2014-10-20.36 with V=13.1, but it is not present (V>17.0) in images taken on 2014-10-13.28. At the position of the transient, Vizier reports a match to a faint B=21.2 USNO-B1.0 source, as well as a nearby GALEX NUV=20.9 source.

Given the large amplitude of its outburst, this transient may be a WZ Sge-type dwarf nova. Follow-up observations are encouraged.

We thank LCOGT and its staff for their continued support of ASAS-SN. For more information about the ASAS-SN project, see the ASAS-SN Homepage and the list of all ASAS-SN transients.