2013/01/01 by Yoel Rephaeli, Massimo Persic · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Electron #Emission spectrum #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gamma-ray bursts and supernovae #Radiative transfer #Range (aeronautics) #Thermal emission #astro-ph.HE
paper · pdf · doi:10.1007/978-3-642-35410-6_14
published in Astrophysics and space science proceedings, 193-209 (Springer International Publishing) · 17 pages, 5 figures, to be published in Astrophysics and Space Science Proceedings
openalex publication_date 2013/01/01 · arxiv created 2013/04/01 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The detections of high-energy gamma-ray emission from the nearby starburst galaxies M82 & NGC253, and other local group galaxies, broaden our knowledge of star-driven nonthermal processes and phenomena in non-AGN star-forming galaxies. We review basic aspects of the related processes and their modeling in starburst galaxies. Since these processes involve both energetic electrons and protons accelerated by SN shocks, their respective radiative yields can be used to explore the SN-particle-radiation connection. Specifically, the relation between SN activity, energetic particles, and their radiative yields, is assessed through respective measures of the particle energy density in several star-forming galaxies. The deduced energy densities range from O(0.1) eV/cm3 in very quiet environments to O(100) eV/cm3 in regions with very high star-formation rates.