Astronomy:SN 2005cs
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| Event type | Supernova |
|---|---|
| Spectral class | Type IIp[1] |
| Date | June 28, 2005 (UTC) |
| Constellation | Canes Venatici |
| Right ascension | 13h 29m 53.37s[2] |
| Declination | +47° 10′ 28.2″[2] |
| Epoch | J2000 |
| Distance | 27.4 ± 2.3 Mly (8.4 ± 0.7 Mpc)[3] |
| Host | Whirlpool Galaxy (M51)[3] |
| Progenitor | 7–13 M☉[4] |
| Progenitor type | Red Supergiant[3] |
| Colour (B-V) | 0.14 ±0.02 |
| Peak apparent magnitude | 14.5[1] |
SN 2005cs was a supernova in the spiral galaxy M51,[3] known as the Whirlpool Galaxy. It was a type II-P core-collapse supernova, discovered June 28, 2005 by Wolfgang Kloehr, a German amateur astronomer.[5] The event was positioned at an offset of 15″ west and 78″ south of the galactic nucleus of M51.[2] Based on the data, the explosion was inferred to occur 2.8 days before discovery.[6] It was considered under-luminous for a supernova of its type, releasing an estimated 3×1050 erg in energy.[4]
The progenitor star was identified from a Hubble Space Telescope image taken January 20–21, 2005. It was a red supergiant with a spectral type in the mid-K to late-M type range and an estimated initial (ZAMS) mass of 9+3
−2 M☉. A higher mass star enshrouded in a cocoon of dust has been ruled out.[7]
References
- ↑ 1.0 1.1 Barbon, R. et al. (2008). "Asiago Supernova Catalogue". CDS/ADC Collection of Electronic Catalogues. Bibcode: 2008yCat....1.2024B.
- ↑ 2.0 2.1 2.2 Kloehr, W. et al. (June 2005). "Supernova 2005cs in M51". IAU Circular 8553 (1): 1. Bibcode: 2005IAUC.8553....1K.
- ↑ 3.0 3.1 3.2 3.3 Vinkó, J. et al. (April 2012). "Improved distance determination to M 51 from supernovae 2011dh and 2005cs". Astronomy & Astrophysics 540: 7. doi:10.1051/0004-6361/201118364. A93. Bibcode: 2012A&A...540A..93V.
- ↑ 4.0 4.1 Pastorello, A. et al. (April 2009). "SN 2005cs in M51 - II. Complete evolution in the optical and the near-infrared". Monthly Notices of the Royal Astronomical Society 394 (4): 2266–2282. doi:10.1111/j.1365-2966.2009.14505.x. Bibcode: 2009MNRAS.394.2266P.
- ↑ Bishop, David (August 8, 2014). "Supernova 2005cs in M51". Rochester Academy of Science. http://www.rochesterastronomy.org/sn2005/sn2005cs.html.
- ↑ Dessart, Luc et al. (March 2008). "Using Quantitative Spectroscopic Analysis to Determine the Properties and Distances of Type II Plateau Supernovae: SN 2005cs and SN 2006bp". The Astrophysical Journal 675 (1): 644–669. doi:10.1086/526451. Bibcode: 2008ApJ...675..644D.
- ↑ Maund, Justyn R. et al. (November 2005). "The progenitor of SN 2005cs in the Whirlpool Galaxy". Monthly Notices of the Royal Astronomical Society: Letters 364 (1): L33–L37. doi:10.1111/j.1745-3933.2005.00100.x. Bibcode: 2005MNRAS.364L..33M.
External links
- Light curves and spectra on the Open Supernova Catalog
- MacRobert, Alan M. (August 24, 2005). "Supernova in M51". Sky Tonight. Sky and Telescope. http://skyandtelescope.com/news/article_1544_1.asp.
- "NASA/IPAC Extragalactic Database". Results for SN 2005cs. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=SN+2005cs&img_stamp=yes&extend=no.
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