SN 2005E

SN 2005E (aka 2005-1032) was a calcium-rich supernova first observed in January 2005 that scientists concluded was a new type of cosmic explosion.[1] The explosion originated in the galaxy NGC 1032, approximately 100 million light years away.[2][3]
Location: RA 02° 39' 14.34" Dec+01hr 05' 55.0" [Epoch J2000]

SN 2005E
Other designationsSN 2005E
Event typeSupernova 
Spectral classSN.Ib/c 
ConstellationCetus 

Research and Conclusions

On May 19, 2010, a team of astronomers released a report on the discoveries made in their research of SN 2005E. The articles were published in the British journal Nature.[4]

The researchers have determined that the blast emitted a large amount of calcium and titanium, which is evidence of a nuclear reaction involving helium, instead of the carbon and oxygen that is characteristic of Type Ia supernovae. This supernova is the prototypical example of a small group of supernovae called Calcium-rich supernovae.

References
  1. Marlowe Hood: "Blast from the past: a new type of exploding star" in Yahoo! News, May 19, 2010, 5:04 PM ET.
  2. "SN 2005E" in Astrosurf - Portail d'Astronomie des astronomes amateurs francophones (French)
  3. Stephen Battersby: "Quirky supernova could be something new", New Scientist, 19 June 2009.
  4. "A faint type of supernova from a white dwarf with a helium-rich companion", Nature, 465, 322–325 (20 May 2010), doi:10.1038/nature09056; Received 17 May 2009; Accepted 23 March 2010.
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