Diffuse Ultra-High-Energy Gamma-Ray Emission From TeV Halos
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866914974839865344 |
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| author | Dekker, Ariane Holst, Ian Hooper, Dan Leone, Giovani Simon, Emily Xiao, Huangyu |
| author_facet | Dekker, Ariane Holst, Ian Hooper, Dan Leone, Giovani Simon, Emily Xiao, Huangyu |
| contents | The LHAASO Collaboration has recently reported a measurement of the diffuse gamma-ray emission from the Galactic Plane at energies between 10 TeV and 1 PeV. While this emission is brighter than that expected from cosmic-ray interactions in the interstellar medium alone, we show that the intensity, spectrum, and morphology of this excess are in good agreement with that predicted from the "TeV halos" which surround the Milky Way's pulsar population. These results support the conclusion that TeV halos dominate the ultra-high-energy sky, and that these objects convert $\sim 5\%$ of their total spindown power into very-high and ultra-high-energy photons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_00051 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Diffuse Ultra-High-Energy Gamma-Ray Emission From TeV Halos Dekker, Ariane Holst, Ian Hooper, Dan Leone, Giovani Simon, Emily Xiao, Huangyu High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies High Energy Physics - Phenomenology The LHAASO Collaboration has recently reported a measurement of the diffuse gamma-ray emission from the Galactic Plane at energies between 10 TeV and 1 PeV. While this emission is brighter than that expected from cosmic-ray interactions in the interstellar medium alone, we show that the intensity, spectrum, and morphology of this excess are in good agreement with that predicted from the "TeV halos" which surround the Milky Way's pulsar population. These results support the conclusion that TeV halos dominate the ultra-high-energy sky, and that these objects convert $\sim 5\%$ of their total spindown power into very-high and ultra-high-energy photons. |
| title | Diffuse Ultra-High-Energy Gamma-Ray Emission From TeV Halos |
| topic | High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2306.00051 |