| SN II-P | |
| Date | 25 July 2013 |
|---|---|
| Constellation | Pisces |
| Right ascension | 01 36 48.16 |
| Declination | +15° 45′ 31.0″ |
| Epoch | J2000.0 |
| Distance | 30±6 Mly |
| Host | Messier 74 (NGC 628) |
| Progenitor | ? |
| Progenitor type | Red supergiant |
| Colour (B-V) | Unknown |
| Notable features | N/A |
| Peak apparent magnitude | 12.1 |
| [edit on Wikidata] | |
SN 2013ej is a Type II-P supernova in the nearby spiral galaxy Messier 74 (NGC 628). 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.
Supernova 2013ej was noted for being as bright as 12th magnitude.
SN 2013ej was compared to supernovas SN 2004et and SN 2007od. Based on various observations it has been theorized that the supernova originated from a red supergiant star that went supernova.
SN 2013ej is one of the brightest Type II supernova detected to-date in NGC 628.
References
- 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.
- "Supernovae 2013ej in M74". Rochester Astronomy. 16 May 2016. Retrieved 4 April 2017.
- "Bright supernova in M74". Sky & Telescope. 2013-07-29. Retrieved 2019-11-22.
- ^ 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.
- 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.
External links
- Light curves and spectra Archived 2017-10-22 at the Wayback Machine on the Open Supernova Catalog Archived 2016-03-03 at the Wayback Machine
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