(cba:news) [Fwd: RE: [cvnet-outburst] HS1340+1542 and SDSS J114628.80+675909.7] (Joe Patterson) [2009-04-18T13:30:47Z]
Dear CBAers,
These two recently discovered CVs have popped off, and are well worth a
long time series (or two - or many, if a periodic term emerges). The
nature of these stars is still mostly unknown.
AM CVn has been mighty interesting, with data from Bart Staels, the
Arkansas gang (Tut Campbell et al.), David Boyd, Bob Koff, and Mack
Julian. It's worth going for another week, especially for Euros who
like the high dec. In the next message I'll write a long piece about
our last decade of coverage; the results are too fascinating to quit,
dooming us, perhaps, to another decade of coverage.
But this is the season for *most* of the AM CVn stars, and I strongly
commend CR Boo and HP Lib as the best targets for long campaigns in
April-May 2009. Except for the occasional mystery dwarf nova popping
off, these equatorial stars should be prime targets for all. Even the
Euros, if they can tolerate these modest decs.
All the other "current targets" should be swept away - respectfully, but
firmly. These AM CVn stars richly reward very detailed observational
coverage, but are a lot less valuable when the time series are pretty
scattered.
Happy observing!
joe
-------- Original Message --------
Subject: RE: [cvnet-outburst] HS1340+1542 and SDSS J114628.80+675909.7
Date: Sat, 18 Apr 2009 10:15:51 +0000
From: Jeremy Shears <bunburyobservatory@xxxxxxxxxxx>
Reply-To: cvnet-outburst@xxxxxxxxxxxxxxx
To: <cvnet-outburst@xxxxxxxxxxxxxxx>, <baavss-alert@xxxxxxxxxxxxxxx>
References: <BLU126-W23184DF0E04540193A4FCBC47B0@xxxxxxx>
<D9B743518B6D4FDF86E63560166A4FC6@ownerPC>
Thanks Gary.
....I realise I got two of the digits the wrong way round in the name.
Should be HS1340+1524 (at RA 13 43 23.4 Dec +15 09 16) - sorry, my fault.
Further info on Boris Gaensicke's HQS site here:
http://deneb.astro.warwick.ac.uk/phsdaj/HQS_Public/HQS_Public.html
Go well!
Jeremy
To: cvnet-outburst@xxxxxxxxxxxxxxx; baavss-alert@xxxxxxxxxxxxxxx
From: garypoyner@xxxxxxxxxxxxxxxx
Date: Sat, 18 Apr 2009 11:04:29 +0100
Subject: Re: [cvnet-outburst] HS1340+1542 and SDSS J114628.80+675909.7
HS1340+1542 confirmed...
Apr 17.992 14.5
Only the second time I have seen this one. Outbursts are
(I think) very short - unless of course this is a superoutburst.
regards,
Gary
-------------------------------------------------------------
Gary Poyner
garypoyner@xxxxxxxxxxxxxxxx
http://www.garypoyner.pwp.blueyonder.co.uk/varstars.html
"You can always tell a Brummie....but you can't tell him much"!
--------------------------------------------------------------
----- Original Message -----
From: "Jeremy Shears" <bunburyobservatory@xxxxxxxxxxx>
To: <baavss-alert@xxxxxxxxxxxxxxx>; <cvnet-outburst@xxxxxxxxxxxxxxx>
Sent: Friday, April 17, 2009 11:51 PM
Subject: [cvnet-outburst] HS1340+1542 and SDSS J114628.80+675909.7
HS1340+1542 Apr 17.947 14.3C
SDSS J114628.80+675909.7 Apr 17.934 16.9C
Jeremy Shears
Cheshire, UK
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