Detectability of Supernova Remnants with the Southern Wide-field Gamma-ray Observatory
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909654962929664 |
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| author | Scharrer, Nick Spencer, Samuel T. Joshi, Vikas Mitchell, Alison M. W. |
| author_facet | Scharrer, Nick Spencer, Samuel T. Joshi, Vikas Mitchell, Alison M. W. |
| contents | Supernova remnants (SNRs) are likely sources of hadronic particle acceleration within our galaxy, contributing to the galactic cosmic ray flux. Next-generation instruments, such as the Southern Wide-field Gamma-ray Observatory (SWGO), will be of crucial importance in identifying new candidate SNRs. SWGO will observe two-thirds of the gamma-ray sky, covering the energy range between a few hundreds of GeV and a PeV. In this work, we apply a model of SNR evolution to a catalogue of SNRs in order to predict their gamma-ray spectra, explore the SNR emission phase space, and quantify detection prospects for SWGO. Finally, we validate our model for sources observed with current-generation instruments, fitting it using a Monte-Carlo Markov Chain technique to the observed gamma-ray emission from four SNRs. We anticipate that at least 6, and potentially as many as 11 SNRs will be detected by SWGO within 1 year. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_15741 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Detectability of Supernova Remnants with the Southern Wide-field Gamma-ray Observatory Scharrer, Nick Spencer, Samuel T. Joshi, Vikas Mitchell, Alison M. W. High Energy Astrophysical Phenomena Supernova remnants (SNRs) are likely sources of hadronic particle acceleration within our galaxy, contributing to the galactic cosmic ray flux. Next-generation instruments, such as the Southern Wide-field Gamma-ray Observatory (SWGO), will be of crucial importance in identifying new candidate SNRs. SWGO will observe two-thirds of the gamma-ray sky, covering the energy range between a few hundreds of GeV and a PeV. In this work, we apply a model of SNR evolution to a catalogue of SNRs in order to predict their gamma-ray spectra, explore the SNR emission phase space, and quantify detection prospects for SWGO. Finally, we validate our model for sources observed with current-generation instruments, fitting it using a Monte-Carlo Markov Chain technique to the observed gamma-ray emission from four SNRs. We anticipate that at least 6, and potentially as many as 11 SNRs will be detected by SWGO within 1 year. |
| title | Detectability of Supernova Remnants with the Southern Wide-field Gamma-ray Observatory |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2410.15741 |