Gamma-Rays and High Energy Neutrinos from Young Supernovae

Prantik Sarmah*, Sovan Chakraborty, Irene Tamborra, Katie Auchettl

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Multiwavelength observations of Supernovae (SNe) have revealed the presence of dense Circumstellar Material (CSM) around their progenitor stars. This CSM is formed due to heavy mass loss that the progenitor stars suffer a few years prior to their death as SNe. High energy protons accelerated in SN explosion interacting with this CSM can produce secondary particles like high energy neutrinos and gamma-rays. We term such SNe as Young Supernova (YSNe) as this interaction generally lasts for about a year after explosion. In this work, we estimate the fluxes of high energy neutrinos and gamma rays emitted by different types (IIn, II-P, Ib/c, and IIb/II-L) of YSNe. Type IIn produces the largest neutrino and gamma-ray fluxes, followed by Ib/c and II-P. Telescopes like IceCube-Gen2 (neutrino) and Fermi-LAT (gamma-ray) might detect type IIn upto 10 Mpc, while the remaining types are detectable at smaller distances. The different classes of YSNe can also produce diffuse backgrounds of high energy neutrinos and gamma-rays. The contribution to these diffuse backgrounds is found to be dominated by type IIn YSNe, followed by type II-P and Ib/c YSNe. The diffuse neutrino background from YSNe explains very well the IceCube High Energy Starting Events (HESE). Interestingly, the gamma-ray counterpart to diffuse background do not create tension to the resolved Isotropic Gamma-ray Background (IGRB) measured by Fermi-LAT.

Original languageEnglish
Title of host publicationProceedings of the XXV DAE-BRNS High Energy Physics (HEP) Symposium 2022
EditorsSatyajit Jena, Ambresh Shivaji, Vishal Bhardwaj, Kinjalk Lochan, Harvinder Kaur Jassal, Anosh Joseph, Pankaj Khuswaha
Number of pages4
Place of PublicationMohali, India
PublisherSpringer Nature
Publication date17 Jul 2024
Pages120-123
ISBN (Print)9789819702886
DOIs
Publication statusPublished - 17 Jul 2024
Event25th DAE-BRNS High Energy Physics Symposium, HEPS 2022 - IISER Mohali, India
Duration: 12 Dec 202216 Dec 2022

Conference

Conference25th DAE-BRNS High Energy Physics Symposium, HEPS 2022
Country/TerritoryIndia
CityIISER Mohali
Period12/12/202216/12/2022
SeriesSpringer Proceedings in Physics
Volume304 SPPHY
ISSN0930-8989

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

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