[vsnet-alert 17943] ASASSN-14jq - UGWZ candidate in Cassiopeia

Denis Denisenko d.v.denisenko at gmail.com
Fri Nov 7 20:20:22 JST 2014


There is a bright large-amplitude object on the ASAS-SN Transients page
http://www.astronomy.ohio-state.edu/~assassin/transients.html (Shappee et
al., 2014)

ASASSN-14jq  2:21:2.68  73:22:45.2  2014-11-6.41  13.74  bright CV
candidate, matches to blue g=20.5 SDSS star

ASASSN-14jq
  20141013.42  <170V   ASAS-SN
  20141106.41  13.74V  ASAS-SN

The object at quiescence is identical to the blue star with SDSS colors
implying short orbital period:
SDSS J022102.78+732245.2 (u=20.41 g=20.37 r=20.18 i=20.35 z=20.06)
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237671073290912594

There is an UV source with two entries in GALEX data:
GALEX J022103.0+732244 (FUV=21.27+/-0.34 NUV=21.24+/-0.22)
GALEX J022102.9+732244 (FUV=21.68+/-0.33 NUV=20.61+/-0.23)

Blue star is present on Palomar plates and in USNO-B:
USNO-B1.0 1633-0032232 (02 21 03.12 +73 22 45.6  pmRA=0  pmDE=0 B1=20.04
R1=19.17 B2=18.59 R2=19.05 I=N/A)

There is a red star 2MASS J02210401+7322465 (J=15.30 H=14.68 K=14.59) 5.8"
east of the new variable.

Denis Denisenko


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