SN 2013ej

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]

SN 2013ej
Spectral classSN 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

Supernova 2013ej was noted for being as bright as 10th 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.[5]

SN 2013ej is one of the brightest Type II supernova detected to-date in NGC 628.[6]

References
  1. "The first month of evolution of the slow-rising Type IIP SN 2013ej in M74". MNRAS Letters. 438: L101–L105. 2013.
  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. 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. 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.
  6. 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.


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