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The nature of supernovae 2010O and 2010P in Arp 299 - II. Radio emission

C. Romero-Canizales ; R. Herrero-Illana ; M. A. Perez-Torres ; A. Alberdi ; E. Kankare ; F. E. Bauer ; S. D. Ryder ; S. Mattila ; John Conway (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium) ; R. J. Beswick ; T. W. B. Muxlow
Monthly Notices of the Royal Astronomical Society (0035-8711). Vol. 440 (2014), 2, p. 1067-1079.
[Artikel, refereegranskad vetenskaplig]

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 similar to 1 to similar to 3 yr 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 towards SN 2010P probe the dense circumstellar envelope of this SN, and imply M [M-circle dot yr(-1)]/upsilon(wind) [10 km s(-1)] = (3.0 - 5.1) x 10(-5), with a 5 GHz peak luminosity of similar to 1.2 x 10(27) erg s(- 1) Hz(- 1) on day similar to 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.

Nyckelord: supernovae: general, supernovae: individual: SN 2010O, supernovae: individual: SN 2010P, galaxies: individual: Arp 299, galaxies: starburst, radio continuum: galaxies, LUMINOUS INFRARED GALAXY, X-RAY-EMISSION, LIGHT-CURVES, SN 2011DH, MODULATIONS, PROGENITORS, EVOLUTION, EXPLOSION, DISCOVERY, REVEAL, HRZ RD, 1983, ASTROPHYSICAL JOURNAL, V267, P551, EVALIER RA, 1982, ASTROPHYSICAL JOURNAL, V259, P302



Denna post skapades 2014-06-23. Senast ändrad 2014-09-02.
CPL Pubid: 199462

 

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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium

Ämnesområden

Astronomi, astrofysik och kosmologi

Chalmers infrastruktur

 


Projekt

Denna publikation är ett resultat av följande projekt:


Advanced Radio Astronomy in Europe (RADIONET3) (EC/FP7/283393)