Supernova 2005bf in MCG +00-27-5

This page is devoted to information on Supernova 2005bf in MCG +00-27-5.   Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page.  Information on the original web pages for many of these images can be found on the updates and links web pages.

Discovered independantly by Berto Monard (South Africa) and Lick Observatory Supernova Search (USA).   This is one of the supernova which holds the distinction of having changed type from type Ic to type Ib.   This one also has an unusual light curve as noted by CSP.   We have a DSS Photometry reference image made by Odd Trondal.  Icon generated from the discovery image.   This supernova is in the Constellation Sextans.

Web pages dedicated to this SN.
• SNWeb has a 2005bf page
• arXiv:astro-ph/0509731 SN 2005bf: A Possible Transition Event Between Type Ib/c Supernovae and Gamma Ray Bursts

The following is a list of images of this SN, in chronological order. Click on the name in the "Image Credit" column to see the image. Times and dates are in UT unless otherwise noted. If you know of any others, please tell me!

Image Credit	Date	Mag	Filter	Comments
Berto Monard image	2005/05/05.722	18.0	CR	Discovery
LOSS image	2005/05/06.3	17.8	C	Discovery
Lode Stevens image	2005/05/07?		RGB
CSP/LCO image	2005/04/08?		C
Sergio Castellon image	2005/04/10?		BVI	color
T. Chatterton image	2005/06/14.165	18.0	C

Light curves and Spectra:
• CfA spectrum taken 2005/04/09, showing that it is now a type Ib, not Ic as originally reported.
• CfA spectrum comparing it to a spectrum of 1984L
• CSP/LCO light curve
• SNWeb Measurements and light curve.