Type Ibn supernova SN~2010al: Powerful mass loss half year prior to the explosion

2022/03/05 by Н. Н. Чугай, Chugai, Nikolai
Physics and Astronomy · #Astro and Planetary Science #FOS: Physical sciences #Gamma-ray bursts and supernovae #High Energy Astrophysical Phenomena (astro-ph.HE) #Pulsars and Gravitational Waves Research

paper · pdf · doi:10.48550/arxiv.2203.02717

openalex publication_date 2022/03/05 · openalex created_date 2022/04/03 · openalex updated_date 2026/07/28

Abstract

Type Ibn supernova SN~2010al is explored to infer parameters of supernova and a circumstellar (CS) shell. The CS interaction model combined with the spectral model of 4600Å blend suggests the explosion of a WR star with the energy of (1-1.5)×10⁵¹ erg inside a dense confined CS shell with the mass of ∼0.1\msun and kinetic energy of ∼ 10⁴⁸ erg. The confined CS shell has been formed during the last 0.4 yr prior to the core collapse.

Related

• Circumstellar shell and presupernova emission of SN 2020tlf
• The first radio view of a type Ibn supernova in SN 2023fyq: Understanding the mass-loss history in the last decade before the explosion
• Type Ibn supernovae from ultra-stripped supernova progenitors
• Dense Circumstellar Medium around Pulsating Massive Stars Powering Interacting Supernovae
• Massive stars exploding in a He-rich circumstellar medium. XI. Diverse evolution of five Ibn SNe 2020nxt, 2020taz, 2021bbv, 2023utc and 2024aej