[vsnet-alert 18857] Re: Two bright CV candidates discovered by ASAS-SN (ATel #7809)

[Brian Skiff]

On Sat, 2015-07-18 at 20:18 +0100, Patrick Schmeer wrote:
> Excerpt from ATel #7809 (credential certification: Krzysztof Stanek)
> 
> Object        RA (J2000)    DEC (J2000)     Disc. UT Date   Disc. V mag 
> ASASSN-15mt   19:12:35.39   +50:34:39.3     2015-07-18.42   13.7 
> ASASSN-15mu   22:52:33.11   +10:20:25.0     2015-07-18.48   13.6 
> 
> "Both ASASSN-15mt and ASASSN-15mu are most likely dwarf
> nova outbursts. Follow-up observations are encouraged."


     ASASSN-15mt is in outburst on the POSS-I plates
(epoch 1953.685) with blue/red magnitudes from USNO-A2.0
of 14.0, whereas USNO-B1.0 shows about 14.4 from the
same plates.

     For ASASSN-15mu the near-IR 2MASS observations
give J = 14.55, K = 14.15 (thus intermediate J-K color = 0.4),
whereas the deeper UKIDSS data show J = 15.85, K = 14.99,
thus J-K = 0.86, typical of an M-dwarf.  Apparently
the 2MASS data were also taken with the system in an
elevated state above quiescence.


\Brian