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1811080682912350208
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MIT
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© 2020 IOP Publishing Ltd and Sissa Medialab. The distribution of galaxies within the local universe is characterized by anisotropic features. Observatories searching for the production sites of astrophysical neutrinos can take advantage of these features to establish directional correlations between a neutrino dataset and overdensities in the galaxy distribution in the sky. The results of two correlation searches between a seven-year time-integrated neutrino dataset from the IceCube Neutrino Observatory, and the 2MASS Redshift Survey (2MRS) catalog are presented here. The first analysis searches for neutrinos produced via interactions between diffuse intergalactic Ultra-High Energy Cosmic Rays (UHECRs) and the matter contained within galaxies. The second analysis searches for low-luminosity sources within the local universe, which would produce subthreshold multiplets in the IceCube dataset that directionally correlate with galaxy distribution. No significant correlations were observed in either analyses. Constraints are presented on the flux of neutrinos originating within the local universe through diffuse intergalactic UHECR interactions, as well as on the density of standard candle sources of neutrinos at low luminosities.
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| first_indexed |
2024-09-23T11:35:06Z
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Article
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mit-1721.1/135436
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Massachusetts Institute of Technology
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| language |
English
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| last_indexed |
2024-09-23T11:35:06Z
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| publishDate |
2021
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| publisher |
IOP Publishing
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dspace
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| spelling |
mit-1721.1/1354362022-04-01T17:20:49Z Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube © 2020 IOP Publishing Ltd and Sissa Medialab. The distribution of galaxies within the local universe is characterized by anisotropic features. Observatories searching for the production sites of astrophysical neutrinos can take advantage of these features to establish directional correlations between a neutrino dataset and overdensities in the galaxy distribution in the sky. The results of two correlation searches between a seven-year time-integrated neutrino dataset from the IceCube Neutrino Observatory, and the 2MASS Redshift Survey (2MRS) catalog are presented here. The first analysis searches for neutrinos produced via interactions between diffuse intergalactic Ultra-High Energy Cosmic Rays (UHECRs) and the matter contained within galaxies. The second analysis searches for low-luminosity sources within the local universe, which would produce subthreshold multiplets in the IceCube dataset that directionally correlate with galaxy distribution. No significant correlations were observed in either analyses. Constraints are presented on the flux of neutrinos originating within the local universe through diffuse intergalactic UHECR interactions, as well as on the density of standard candle sources of neutrinos at low luminosities. 2021-10-27T20:23:28Z 2021-10-27T20:23:28Z 2020 2021-04-08T15:34:15Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135436 en 10.1088/1475-7516/2020/07/042 Journal of Cosmology and Astroparticle Physics Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IOP Publishing arXiv
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| spellingShingle |
Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
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| title |
Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
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| title_full |
Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
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| title_fullStr |
Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
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| title_full_unstemmed |
Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
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| title_short |
Constraints on neutrino emission from nearby galaxies using the 2MASS redshift survey and IceCube
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| title_sort |
constraints on neutrino emission from nearby galaxies using the 2mass redshift survey and icecube
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| url |
https://hdl.handle.net/1721.1/135436
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