[vsnet-alert 20526] Re: ASASSN-16pm: potentially very unusual transient

[Denis Denisenko]

On Fri, Dec 30, 2016 at 11:03 PM, Kris Stanek <stanek.32 at osu.edu> wrote:

> http://www.astronomy.ohio-state.edu/~assassin/transients.html
> ASASSN-16pm     4:17:24.77      22:15:22.8      2016-12-29.23   16.74
> CV candidate or another kind of outburst, matches to a very unusual CRTS
> light curve

I have analyzed CRTS data. Using the points at minimum only, I am
getting the best period equal to 0.153988 d (3.6957 hr or 221.7 min).
The variable appears to be an eclipsing variable of VY Scl type
returning to the hight state. In the low state it was showing eclipses
from 18.7 to 20.5: magnitude.

IDs from catalogs:

PSO J041724.728+221522.333
g=19.40 r=19.42 i=19.02 z=18.48 y=18.10
USNO-A2.0 1050-01204778
04 17 24.73 +22 15 23.4 B=18.0 R=17.4
USNO-B1.0 1122-0062448
04 17 24.72 +22 15 22.5 B1=18.64 R1=17.61 B2=16.90 R2=14.81 I=14.11
GSC2.3 NA2P002016
04 17 24.74 +22 15 22.3  F=19.56 j=15.78 V=16.70 I=14.8
CMC15 041724.7+221522 r'=15.32
AllWISE J041724.72+221522.2 W1=15.44 W2=15.14

Congratulations on this nice discovery and Happy New Year!

Denis