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SN 2005ap

Energetic supernova ievent of 2005 in constellation Coma Berenices

Energetic supernova ievent of 2005 in constellation Coma Berenices

Texas Supernova Search (1.441 billion pc )

SN 2005ap was an extremely energetic Type Ic supernova in the galaxy SDSS J130115.12+274327.5. With a peak absolute magnitude of around −22.7, it is the second-brightest superluminous supernova yet recorded, twice as bright as the previous record holder, SN 2006gy, though SN 2005ap was eventually surpassed by ASASSN-15lh. It was initially classified as Type II-L,{{cite web |display-authors=etal

Although SN 2005ap was twice as bright at its peak than SN 2006gy, it was not as energetic overall, as the former brightened and dimmed in a typical period of a few days whereas the latter remained very bright for many months. SN 2005ap was about 300 times brighter than normal for a Type II supernova. It has been speculated that this hypernova involved the formation of a quark star. Quimby has suggested that the hypernova is of a new type distinct from the standard Type II supernova, and his research group have identified five other supernovae similar to SN 2005ap and SCP 06F6, all of which were extremely bright and lacking in hydrogen. |display-authors=etal

References

References

  1. (2007). "SN 2005ap: A Most Brilliant Explosion". The Astrophysical Journal.
  2. (2012). "The Catalina Real-time Transient Survey". New Horizons in Time-Domain Astronomy.
  3. (2005). "Supernovae 2005ao, 2005ap, 2005aq". International Astronomical Union Circular.
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