SUPERNOVA DISCOVERIES

SN2005my

sn2005dc

Electronic Telegram No. 346
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html

SUPERNOVA 2005my IN ESO 302-G27
P. Luckas, Perth, W. Australia; O. Trondal, Oslo, Norway; and M.  Schwartz, Patagonia, AZ, report the discovery of an apparent supernova  on unfiltered CCD frames taken with the 0.35-m Tenagra telescope at  Perth on 2005 Dec. 30.55 (at mag 17.8) and 2006 Jan. 1.53 UT (mag  17.3) in the course of the Tenagra Observatory Supernova Search.  SN  2005my is located at R.A. = 4h01m53s.13, Decl. = -41o56'08".3 (equinox  2000.0), which is 15".9 east and 23".0 north of the center of ESO  302-G27 (which itself has position end figures 51s.70, 31".3).  Nothing was visible at the position of 2005my on an image taken by  Luckas on 2005 Oct. 14.75 (limiting magnitude about 18.5).

Electronic Telegram No. 358

SUPERNOVA 2005my IN ESO 302-G27
M. Salvo and B. Schmidt, Australian National University (ANU);   and S. Ryder, Anglo-Australian Observatory, report that a spectrogram   (range 370-900 nm), obtained with the ANU 2.3-m telescope (+   Double-Beam Spectrograph) on Jan. 7.53 UT, shows SN 2005my (IAUC   8655) to be a type-II supernova in the late plateau phase; adopting   the NED recession velocity for the host galaxy (Mathewson and Ford   1996, Ap.J. Suppl. 107, 97) of cz = 4441 km/s, the expansion velocity   measured from the Fe II 492.4- and 501.8-nm lines is 2000 km/s.

 

 
2008bq Type Ia April 2, 2008 ESO 308-G25
2007as Type Ia March 13, 2007 ESO 18-G18
2006du Type II July 18, 2006 IC 1529
2006ck Type Ic May 20, 2006 UGC 8238
2006bs Type II April 19, 2006 MCG +0-27-14
2006ai Type II February 17, 2006 ESO 5-G9
2006y Type II February 3, 2006 Anon
2005my Type II December 30, 2005 ESO 302-G27
2005gm Type IIn October 9, 2005 NGC 1423
2005dk Type II August 21, 2005 IC 4882
2005dc Type Ia July 26, 2005 NGC 7107


Tenagra Western Australia | Luckas Observatory