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The nature of supernovae 2010O and 2010P in Arp 299 - II. Radio emission
- Publication Year :
- 2014
-
Abstract
- We report radio observations of two stripped-envelope supernovae (SNe), 2010O and 2010P, which exploded within a few days of each other in the luminous infrared galaxy Arp 299. Whilst SN 2010O remains undetected at radio frequencies, SN 2010P was detected (with an astrometric accuracy better than 1 milli arcsec in position) in its optically thin phase in epochs ranging from ~1 to ~3yr after its explosion date, indicating a very slow radio evolution and a strong interaction of the SN ejecta with the circumstellar medium. Our late-time radio observations toward SN 2010P probe the dense circumstellar envelope of this SN, and imply a mass-loss rate (Msun/yr) to wind velocity (in units of 10 km/s) ratio of (3.0-5.1)E-05, with a 5 GHz peak luminosity of ~1.2E+27 erg/s/Hz on day ~464 after explosion. This is consistent with a Type IIb classification for SN 2010P, making it the most distant and most slowly evolving Type IIb radio SN detected to date.<br />Comment: 14 pages, 8 tables and 7 figures. Accepted for publication in MNRAS
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1403.1036
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1093/mnras/stu430