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.[1]
Event type | Supernova ![]() |
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SLNS-R | |
Date | Supernova Legacy Survey |
Constellation | Aquarius ![]() |
Right ascension | 22h 13m 39.97s |
Declination | −17° 45' 24.49 |
Epoch | J2000.0 |
Distance | z=2.0458 ± 0.0005 |
Redshift | 2.0458 ±0.0005 ![]() |
Progenitor | ~ 250 M☉ star |
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