(cba:news) [Fwd: ATel 1867]

Joe Patterson jop at astro.columbia.edu
Mon Dec 8 10:02:58 EST 2008

Dear CBAers,

Given the amplitude of this dwarf nova, it may very well be one of our 
favorites - in the WZ Sge class.  Andromeda is not very well positioned 
now... and the background galaxy might be pretty annoying... but see if 
you can get a time series on it, while it's still bright (if it is).
We can still solve for a unique period, if we get a USA-Europe baseline.
Here's the 2000 position:
00 42 26.50  +42 15 36.7
Sorry if it's a bad field.  Here in New York, I dunno!


-------- Original Message --------
Subject: ATel  1867
Date: Mon,  8 Dec 2008 01:41:50 -0500 (EST)
From: atel at astronomerstelegram.org
To: jop at astro.columbia.edu



The Astronomer's Telegram 
Posted: Sun Dec  7 01:30:01 EST 2008 -- Mon Dec  8 01:30:02 EST 2008
ATEL #1867							     ATEL #1867

Title:		M31N2008-11b is a Galactic Dwarf Nova
Author:	M. M. Kasliwal, R. Quimby, S. R. Kulkarni (Caltech)
Queries:	mansi at astro.caltech.edu
Posted:	8 Dec 2008;  4:28  UT
Subjects:	Cataclysmic Variables, Novae, Transients, Variables

We observed M31N2008-11b <a 
Itagaki, CBET#1588)</a> with the Double Beam Spectrograph on the Palomar
Hale 5-m telescope on UT Dec 4.221. This spectrum has a steep blue 
very narrow emission in H-alpha and broad absorption in H-beta through
at least H-eta. Further, there is a faint blue counterpart in SDSS DR 
g-band imaging (g=22.8, r > 23.3). Given the reported peak magnitude of
14.5 (CBET#1588), this outburst had an amplitude of >8 mag. We suggest
that this optical transient is an SU-UMa-like superoutburst in our own
galaxy similar to HS2219+1824 (Rodriguez-Gil et al 2005).

Password Certification:  Mansi Manoj Kasliwal (mansi at astro.caltech.edu)
Your keywords: Radio, Millimeter, Sub-Millimeter, Far-Infra-Red, Infra-Red,
Optical, Ultra-Violet, X-ray, Gamma Ray, >GeV, Request for Observations,
A Comment, AGN, Asteroids, Binaries, Black Holes, Comets, Cosmic Rays,
Cataclysmic Variables, Globular Clusters, Gamma-Ray Bursts, Meteors, 
Events, Neutron Stars, Novae, Planets, Planets (minor), Pulsars, Quasars,
Soft Gamma-ray Repeaters, Solar System Objects, The Sun, Supernovae, 
Remnants, Transients, Variables, Stars

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