ASASSN-16bh: A Very Bright CV Candidate Discovered By ASAS-SN

ATel #8648; G. Simonian, K. Z. Stanek, C. S. Kochanek, J. S. Brown, T. W.-S. Holoien, D. Godoy-Rivera, U. Basu (Ohio State), B. J. Shappee (Hubble Fellow, Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), D. Bersier (LJMU), Subo Dong, Ping Chen (KIAA-PKU), J. Brimacombe (Coral Towers Observatory)
on 7 Feb 2016; 19:59 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Krzysztof Stanek (stanek.32@osu.edu)

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During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN or "Assassin"), using data from the quadruple 14-cm "Cassius" telescope in Cerro Tololo, Chile, we discovered a new transient source:

 
Object        RA (J2000)    DEC (J2000)     Disc. UT Date   Disc. V mag 
ASASSN-16bh   13:24:57.21   -27:56:10.9     2016-02-07.33   12.7 

ASASSN-16bh was discovered at V=12.7 in "Cassius" images taken on 2016-02-07.33, but not present (V>17.4) in images taken on 2016-02-04.37. It was also present in exposures taken on 2016-02-06.32 at V=12.7. At the position of the transient, Vizier reports a match to a B=20.3 USNO source and a GALEX source.

ASASSN-16bh is most likely a dwarf nova outburst. Follow-up observations are encouraged.

We thank LCOGT and its staff for their continued support of ASAS-SN. ASAS-SN is supported in part by Mt. Cuba Astronomical Foundation. For more information about the ASAS-SN project, see the ASAS-SN Homepage and the list of all ASAS-SN transients.