The Distribution of Supernovae Relative to Spiral Arms of Host Disc Galaxies

2017/02/06 by L. S. Aramyan, Aramyan, L. S., A. A. Hakobyan +17
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Gamma-ray bursts and supernovae

paper · pdf · doi:10.48550/arxiv.1702.01580

openalex publication_date 2017/02/06 · openalex created_date 2017/02/17 · openalex updated_date 2026/07/28

Abstract

Using a sample of 215 supernovae (SNe), we analyse their positions relative to the spiral arms of their host galaxies, distinguishing grand-design (GD) spirals from non-GD (NGD) galaxies. Our results suggest that shocks in spiral arms of GD galaxies trigger star formation in the leading edges of arms affecting the distributions of core-collapse (CC) SNe (known to have short-lived progenitors). The closer locations of SNe Ibc vs. SNe II relative to the leading edges of the arms supports the belief that SNe Ibc have more massive progenitors. SNe Ia having less massive and older progenitors, show symmetric distribution with respect to the peaks of spiral arms.

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