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 language | English |
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Title of host publication | Proceedings of the XXV DAE-BRNS High Energy Physics (HEP) Symposium 2022 |
Editors | Satyajit Jena, Ambresh Shivaji, Vishal Bhardwaj, Kinjalk Lochan, Harvinder Kaur Jassal, Anosh Joseph, Pankaj Khuswaha |
Number of pages | 4 |
Place of Publication | Mohali, India |
Publisher | Springer Nature |
Publication date | 17 Jul 2024 |
Pages | 120-123 |
ISBN (Print) | 9789819702886 |
DOIs | |
Publication status | Published - 17 Jul 2024 |
Event | 25th DAE-BRNS High Energy Physics Symposium, HEPS 2022 - IISER Mohali, India Duration: 12 Dec 2022 → 16 Dec 2022 |
Conference
Conference | 25th DAE-BRNS High Energy Physics Symposium, HEPS 2022 |
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Country/Territory | India |
City | IISER Mohali |
Period | 12/12/2022 → 16/12/2022 |
Series | Springer Proceedings in Physics |
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Volume | 304 SPPHY |
ISSN | 0930-8989 |
Bibliographical note
Publisher Copyright:© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.