2016/01/31 by Xiangcun Meng, Zhanwen Han · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Cosmic Phenomena #Ejecta #Gamma-ray bursts and supernovae #Luminosity #Pair-instability supernova #Red giant #Supernova #White dwarf #astro-ph.HE #astro-ph.SR
paper · pdf · doi:10.1051/0004-6361/201526077
published as A&A 588, A88 (2016) · 12 pages, 5 figures, accepted for publication in A&A, after language editor
arxiv created 2016/02/09 · openalex publication_date 2016/02/09 · arxiv updated 2016/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Context. Symbiotic systems (i.e. a white dwarf + red giant star, WD + RG), which experience mass loss and form circumstellar material (CSM), have been suggested as being a possible progenitor system of type Ia supernovae (SNe Ia). After a supernova explosion, the supernova ejecta may interact with the CSM or the RG secondary. X-ray/radio emission (excess UV photons) is expected from the interaction between supernova ejecta and the CSM (RG secondary). However, no X-ray or radio emission that has originated from this type of system has been observationally detected, and only four SNe Ia have shown any possible signal of excess UV emission. These observational discrepancies need to be interpreted.