SN 2006X

SN 2006X was a Type Ia supernova about 65 million light-years away[1] in Messier 100, a spiral galaxy in the constellation Coma Berenices. The supernova was independently discovered in early February 2006 by Shoji Suzuki of Japan and Marco Migliardi of Italy.

Evolution of the Sodium line in the spectrum of SN 2006X as a function of time.
SN 2006X
M100 before and after the supernova explosion
Other designationsSN 2006X
Event typeSupernova 
Spectral classIa
DateFebruary 4, 2006
ConstellationComa Berenices
Right ascension12h 22m 53.92s
Declination+15° 48 31.2
EpochB1950.0
Distance65 mly[1]
Redshift0.0036, 0.007, 0.0067, 0.0071, 0.0068, 0.0037, 0.0043 
HostM100
Peak apparent magnitude+13[2]
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SN 2006X is particularly significant because it is a Type Ia supernova. These supernovae are used for measuring distances, so observations of these supernovae in nearby galaxies are needed for calibration. SN 2006X is located in a well-studied galaxy, and it was discovered two weeks before its peak brightness, so it may be extraordinarily useful for understanding supernovae and for calibrating supernovae for distance measurements. It may even be possible to identify the progenitor of this supernova.

References

  1. Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (February 2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 79–813. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID 11672751.
  2. Suzuki, Shoji. "in: SUPERNOVAE 2006U, 2006V, 2006W, 2006X". Central Bureau for Astronomical Telegrams. Harvard University. Retrieved 2 May 2015.



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