[vsnet-alert 15488] Re: (cba:chat) Next HST observation: V485 Cen

[Arto Oksanen]

V485 Cen is in outburst. On my image taken 5:40 UT this morning (Mar
12, 2013) the star is V=15.1, about 2.5 magnitudes brighter than
yesterday.

I am taking time series now from Chile.

br,

arto

2013/3/9 Boris Gaensicke <Boris.Gaensicke at warwick.ac.uk>:
> Dear All,
>
> the double feature on SDSS1035+0551 and SDSS1435+2336
> went well - your monitoring was again crucial to make this
> happen! Both systems contain very cool WDs, in fact, they
> are among the ~4 coolest (non-magnetic) accreting WDs known.
> We expected that for SDSS1035+0551, but SDSS1435+2336
> is a bit of a surprise ... and it implies that both have very low
> average accretion rates.
>
> But, no time to relax: V485 Cen is on the schedule, and needs
> your attention,
>
> Mar 16, 2013 03:02:56 to 09:44:57
>
> This is one of the handful of extremely short-period CVs near
> ~60min, which are *not* part of the AM CVn class - but have
> descended a somewhat peculiar path in evolution, and now
> accretion from the nuclear processed inner remains of a previously
> much more massive companion star ... the hope is to get an
> HST spectrum that is good enough to measure some chemical
> abundances of the accreted material.
>
> Please keep monitoring V485 Cen until the planned HST
> observations.
>
> Best wishes,
>
> Boris
>
> -----------------------------------------------------------------------------------------------------
> For more information on this HST program, see
>
> http://deneb.astro.warwick.ac.uk/phsdaj/public_html/12870/
> http://deneb.astro.warwick.ac.uk/phsdaj/public_html/12870/Targets.html
>
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-- 
Arto Oksanen
arto.oksanen at jklsirius.fi
Muurame, Finland

"In a world where I feel so small, I can't stop thinking big."