SN 2013ej

SN 2013ej
SN II-P
Date25 July 2013
ConstellationPisces
Right ascension01h 36m 48.16s
Declination+15° 45′ 31.0″
EpochJ2000.0
Distance30±6 Mly
HostMessier 74 (NGC 628)
Progenitor?
Progenitor typeRed supergiant
Colour (B-V)Unknown
Notable featuresN/A
Peak apparent magnitude12.1
[edit on Wikidata]

SN 2013ej is a Type II-P supernova in the nearby spiral galaxy Messier 74 (NGC 628).[1] It was discovered by the Lick Observatory Supernova Search on July 25, 2013, with the 0.76 m Katzman Automatic Imaging Telescope, with pre-discovery images having been taken the day before.[2]

Supernova 2013ej was noted for being as bright as 12th magnitude.[3]

SN 2013ej was compared to supernovas SN 2004et and SN 2007od.[4] Based on various observations it has been theorized that the supernova originated from a red supergiant star that went supernova.[4]

SN 2013ej is one of the brightest Type II supernova detected to-date in NGC 628.[5]

References

  1. ^ Valenti, S.; Sand, D.; Pastorello, A.; Graham, M. L.; Howell, D. A.; Parrent, J. T.; Tomasella, L.; Ochner, P.; Fraser, M.; Benetti, S.; Yuan, F.; Smartt, S. J.; Maund, J. R.; Arcavi, I.; Gal-Yam, A.; Inserra, C.; Young, D. (2013). "The first month of evolution of the slow-rising Type IIP SN 2013ej in M74". MNRAS Letters. 438: L101–L105. arXiv:1309.4269. doi:10.1093/mnrasl/slt171.
  2. ^ "Supernovae 2013ej in M74". Rochester Astronomy. 16 May 2016. Retrieved 4 April 2017.
  3. ^ "Bright supernova in M74". Sky & Telescope. 2013-07-29. Retrieved 2019-11-22.
  4. ^ a b Huang, Fang; Wang, Xiaofeng; Zhang, Jujia; Brown, Peter J.; Zampieri, Luca; Pumo, Maria Letizia; Zhang, Tianmeng; Chen, Juncheng; Mo, Jun; Zhao, Xulin (2015-04-02). "SN 2013ej in M74: A Luminous and Fast-declining Type II-P Supernova". The Astrophysical Journal. 807 (1): 59. arXiv:1504.00446. Bibcode:2015ApJ...807...59H. doi:10.1088/0004-637X/807/1/59. S2CID 118073790.
  5. ^ Bose, Subhash; Sutaria, Firoza; Kumar, Brijesh; Duggal, Chetna; Misra, Kuntal; Brown, Peter J.; Singh, Mridweeka; Dwarkadas, Vikram; York, Donald G.; Chakraborti, Sayan; Chandola, H. C. (2015-06-16). "SN 2013ej: A TYPE IIL SUPERNOVA WITH WEAK SIGNS OF INTERACTION". The Astrophysical Journal. 806 (2): 160. arXiv:1504.06207. Bibcode:2015ApJ...806..160B. doi:10.1088/0004-637x/806/2/160. ISSN 1538-4357. S2CID 118449547.


Stub icon

This variable star–related article is a stub. You can help Wikipedia by expanding it.