[vsnet-alert 12026] Re: OT_J112253.3-111037 = CSS100603:112253-111037

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sun Jun 6 09:40:23 JST 2010

   Gianluca Masi has reported further observations.  The mean superhump
period is 0.04543(4) d, confirming Maehara-san's analysis.

>  John Greaves informed me about a quiescence spectrum of the object 
> in the SDSS DR7.
> http://cas.sdss.org/astro/en/tools/explore/obj.asp?sid=809193423306227712
> The spectrum shows Balmer-series and He I emission lines.
> These features indicate that the obejct is a hydrogen-rich CV resembling 
> V485 Cen, EI Psc or OT J102842.9-081927.  Further time-resolved observations 
> are strongly encouraged.

   The He I lines are stronger than in ordinary hydrogen-rich CVs.
There is an indication of He II in emission.  These features suggest that
this object is more helium-rich than in ordinary CVs.

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