[vsnet-alert 15494] Re: (cba:chat) Next HST observation: V485 Cen

[Simon Lowther]

I have just observed V485Cen at approx 14.8 mag unfiltered (1130 UT), I
will measure and post when I get a moment in the morning

Simon
On Mar 12, 2013 11:56 PM, "Arto Oksanen" <arto.oksanen at jklsirius.fi> wrote:

> 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
> >
> > ____________________________________________________________
> > Center for Backyard Astrophysics (CBA) mailing lists
> > http://cbastro.org/communications/mailing-lists/
>
>
>
> --
> Arto Oksanen
> arto.oksanen at jklsirius.fi
> Muurame, Finland
>
> "In a world where I feel so small, I can't stop thinking big."
> ____________________________________________________________
> Center for Backyard Astrophysics (CBA) mailing lists
> http://cbastro.org/communications/mailing-lists/
>