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http://hdl.handle.net/2289/8053
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DC Field | Value | Language |
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dc.contributor.author | De Sarkar, Agnibha | - |
dc.date.accessioned | 2023-02-22T06:26:57Z | - |
dc.date.available | 2023-02-22T06:26:57Z | - |
dc.date.issued | 2023-02-06 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2023, Vol. 521, L5 | en_US |
dc.identifier.issn | 1365-2966 (Online) | - |
dc.identifier.issn | 0035-8711 (Print) | - |
dc.identifier.uri | http://hdl.handle.net/2289/8053 | - |
dc.description | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) | en_US |
dc.description.abstract | We present a simple phenomenological model of hadronic interaction between protons accelerated in an old supernova remnant (SNR) and cold protons situated within the associated molecular clouds (MCs). The accelerated protons from the old SNR escaped the SNR shock front, and got injected into the MCs at an earlier time, producing ultra-high-energy gamma-rays and neutrinos through inelastic proton–proton interaction. We also take into account the acceleration and subsequent escape of electrons from the SNR shock front. The escaped electrons produce gamma-rays through various radiative cooling mechanisms, after getting injected into the MCs. We use the model discussed in this letter to explain the multiwavelength spectral energy distribution of unidentified Galactic ultra-high-energy gamma-ray source LHAASO J2108 + 5157. We also discuss the feasibility of applying this model in other cases as well. Future observations can test the viability of the model discussed in this letter, which will in turn confirm that the SNRs can, in fact, accelerate particles up to PeV energies. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Oxford University Press | en_US |
dc.relation.uri | https://ui.adsabs.harvard.edu/abs/2023MNRAS.521L...5D/abstract | en_US |
dc.relation.uri | https://arxiv.org/abs/2301.13451 | en_US |
dc.relation.uri | https://doi.org/10.1093/mnrasl/slad013 | en_US |
dc.relation.uri | https://inspirehep.net/literature/2628542 | en_US |
dc.rights | 2023 The Author(s) | en_US |
dc.subject | radiation mechanisms | en_US |
dc.subject | non-thermal –ISM | en_US |
dc.subject | individual objects | en_US |
dc.subject | LHAASO J2108 + 5157 –ISM | en_US |
dc.subject | supernova rem- nants –gamma-rays | en_US |
dc.subject | ISM | en_US |
dc.title | Supernova connection of unidentified ultra-high-energy gamma-ray source LHAASO J2108+5157 | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
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2023_MNRAS_Vol.521_L5.pdf Restricted Access | Restricted Access | 465.15 kB | Adobe PDF | View/Open Request a copy |
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