PTF11kx: A Type-Ia Supernova with a Symbiotic Nova Progenitor
Abstract
There is a consensus that Type-Ia supernovae (SNe Ia) arise from the thermonuclear explosion of white dwarf stars that accrete matter from a binary companion. However, direct observation of SN Ia progenitors is lacking, and the precise nature of the binary companion remains uncertain. A temporal series of high-resolution optical spectra of the SN Ia PTF 11kx reveals a complex circumstellar environment that provides an unprecedentedly detailed view of the progenitor system. Multiple shells of circumsteller are detected and the SN ejecta are seen to interact with circumstellar material (CSM) starting 59 days after the explosion. These features are best described by a symbiotic nova progenitor, similar to RS Ophiuchi.
Cite
@article{arxiv.1207.1306,
title = {PTF11kx: A Type-Ia Supernova with a Symbiotic Nova Progenitor},
author = {B. Dilday and D. A. Howell and S. B. Cenko and J. M. Silverman and P. E. Nugent and M. Sullivan and S. Ben-Ami and L. Bildsten and M. Bolte and M. Endl and A. V. Filippenko and O. Gnat and A. Horesh and E. Hsiao and M. M. Kasliwal and D. Kirkman and K. Maguire and G. W. Marcy and K. Moore and Y. Pan and J. T. Parrent and P. Podsiadlowski and R. M. Quimby and A. Sternberg and N. Suzuki and D. R. Tytler and D. Xu and J. S. Bloom and A. Gal-Yam and I. M. Hook and S. R. Kulkarni and N. M. Law and E. O. Ofek and D. Polishook and D. Poznanski},
journal= {arXiv preprint arXiv:1207.1306},
year = {2015}
}
Comments
27 pages, 5 figures. In press