SN 1000+0216

SN 1000+0216
Observation data (Epoch J2000.0)
Supernova type	SLNS-R or SLNS-II ?
Right ascension	10^h 00^m 05.87^s
Declination	+02° 16' 23.62
Discovery date	Supernova Legacy Survey
Distance	z=3.8993 ± 0.0074
Physical characteristics
Progenitor	initially a 140–250 M☉ star

SN 1000+0216 was an extremely remote superluminous supernova (SLSN), which occurred in between June and November 2006. Its peak far-ultraviolet absolute magnitude reached −21.5, which exceeded the total absolute magnitude of its host galaxy. The distance (redshift) to this supernova z=3.8993 ± 0.0074 makes it the most distant supernova observed as of 2012. The luminosity of SN 1000+0216 evolved slowly over several years as it was still detectable in November 2008. Both the high luminosity and slow decay indicate that the supernova's progenitor was a very massive star. The supernova explosion itself was likely either a pair-instability supernova or a pulsational pair-instability supernova similar to the SN 2007bi or event. It also had some similarities to the low redshift SN 2006gy supernova. Overall classification of SN 1000+0216 remains uncertain.^[1]

References

1. Cooke, J.; Sullivan, M.; Gal-Yam, A.; Barton, E. J.; Carlberg, R. G.; Ryan-Weber, E. V.; Horst, C.; Omori, Y.; Díaz, C. G. (2012). "Superluminous supernovae at redshifts of 2.05 and 3.90". Nature. 491 (7423): 228–231. arXiv:1211.2003. Bibcode:2012Natur.491..228C. doi:10.1038/nature11521. PMID 23123848.

External links

• 12 Billion-Year Old Supernova Discovered by Astronomers
• Elemental origins glimpsed in 12 billion year old supernova