Astronomy:SN 2213-1745

Short description: Supernova event in the constellation of Aquarius

SN 2213-1745

Spectral class	SLNS-R
Date	Supernova Legacy Survey
Right ascension	22h 13m 39.970s
Declination	−17° 45′ 24.49″
Epoch	J2000.0
Distance	z=2.0458±0.0005
Progenitor	~250 M☉ star

SN 2213-1745 was an extremely remote superluminous supernova (SLSN), which occurred in between November 2004 and June 2005. Its peak far-ultraviolet absolute magnitude reached −21.2, which was comparable to the total absolute magnitude of its host galaxy. The distance (redshift) to this supernova z=2.0458±0.0005 makes it one of the most remote supernova observed as of 2012. The luminosity of SN 2213-1745 evolved slowly over several years as it was still detectable in November 2006. Both the high luminosity and slow decay indicate that the supernova's progenitor was a star with an initial mass as high as 250 solar masses. The supernova explosion itself was likely a pair-instability supernova similar to the SN 2007bi event, with which it shares many similarities.

External links

• Light curves and spectra on the Open Supernova Catalog
• 12 Billion-Year Old Supernova Discovered by Astronomers
• Elemental origins glimpsed in 12 billion year old supernova