[vsnet-alert 15294] SDSS J113215.50+624900.4 bright!

Denis Denisenko d.v.denisenko at gmail.com
Sun Jan 20 16:28:28 JST 2013


MASTER-Amur robotic telescope has detected the bright state of this CV
in Ursa Major with unknown orbital period:

SDSS J113215.50+624900.4
  20130119.585  157C  MASTER-Amur
  20130119.586  154C  MASTER-Amur
  20130119.617  154C  MASTER-Amur
  20130119.618  151C  MASTER-Amur

Catalina Sky Survey light curve shows variations from 17.5m to ~19.5m
over last 7 years:
http://nesssi.cacr.caltech.edu/catalina/20010319/103191630294100386p.html

SDSS spectrum from Szkody et al., 2004 (CVs from SDSS. III) shows
narrow single-peaked lines with noticeable wings and He II (4686) /
H_beta ratio = 1/7. SDSS colors suggest a short orbital period:
u=17.99 g=18.39 r=18.37 i=18.18 z=18.20

Object is also a faint ROSAT source 1RXS J113213.3+624903 with the
flux 0.0246+/-0.0085 cnts/s and hardness ratios HR1=0.88+/-0.58
HR2=0.46+/-0.34.

Denis Denisenko


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