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

Romero-Canizales, C; Herrero-Illana, R; Perez-Torres, MA; Alberdi A.; Kankare, E.; Bauer, FE; Ryder, SD; Mattila, S; Conway, JE; Beswick, RJ; Muxlow, TWB

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 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.

Más información

Título según WOS: The nature of supernovae 2010O and 2010P in Arp 299-II. Radio emission
Título según SCOPUS: The nature of supernovae 2010O and 2010P in arp 299-II. Radio emission
Título de la Revista: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volumen: 440
Número: 2
Editorial: Oxford Academic
Fecha de publicación: 2014
Página de inicio: 1067
Página final: 1079
Idioma: English
DOI:

10.1093/mnras/stu430

Notas: ISI, SCOPUS