Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube
Ultraluminous infrared galaxies (ULIRGs) have infrared luminosities LIR ≥ 1012L⊙, making them the most luminous objects in the infrared sky. These dusty objects are generally powered by starbursts with star formation rates that exceed 100 M⊙ yr−1, possibly combined with a contribution from an active...
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ftmit:oai:dspace.mit.edu:1721.1/142022 2023-08-20T04:09:52+02:00 Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube Conrad, Janet Massachusetts Institute of Technology. Department of Physics 2022-04-21T17:40:02Z application/pdf https://hdl.handle.net/1721.1/142022 en eng American Astronomical Society 10.3847/1538-4357/ac3cb6 The Astrophysical Journal https://hdl.handle.net/1721.1/142022 Conrad, Janet. 2022. "Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube." The Astrophysical Journal, 926 (1). Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ The American Astronomical Society Article http://purl.org/eprint/type/JournalArticle 2022 ftmit 2023-07-31T18:01:47Z Ultraluminous infrared galaxies (ULIRGs) have infrared luminosities LIR ≥ 1012L⊙, making them the most luminous objects in the infrared sky. These dusty objects are generally powered by starbursts with star formation rates that exceed 100 M⊙ yr−1, possibly combined with a contribution from an active galactic nucleus. Such environments make ULIRGs plausible sources of astrophysical high-energy neutrinos, which can be observed by the IceCube Neutrino Observatory at the South Pole. We present a stacking search for high-energy neutrinos from a representative sample of 75 ULIRGs with redshift z ≤ 0.13 using 7.5 yr of IceCube data. The results are consistent with a background-only observation, yielding upper limits on the neutrino flux from these 75 ULIRGs. For an unbroken E−2.5 power-law spectrum, we report an upper limit on the stacked flux ${{\rm{\Phi }}}_{{\nu }_{\mu }+{\bar{\nu }}_{\mu }}^{90 \% }=3.24\times {10}^{-14}\,{\mathrm{TeV}}^{-1}\,{\mathrm{cm}}^{-2}\,{{\rm{s}}}^{-1}\,{(E/10\,\mathrm{TeV})}^{-2.5}$ at 90% confidence level. In addition, we constrain the contribution of the ULIRG source population to the observed diffuse astrophysical neutrino flux as well as model predictions. Article in Journal/Newspaper South pole DSpace@MIT (Massachusetts Institute of Technology) South Pole |
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Ultraluminous infrared galaxies (ULIRGs) have infrared luminosities LIR ≥ 1012L⊙, making them the most luminous objects in the infrared sky. These dusty objects are generally powered by starbursts with star formation rates that exceed 100 M⊙ yr−1, possibly combined with a contribution from an active galactic nucleus. Such environments make ULIRGs plausible sources of astrophysical high-energy neutrinos, which can be observed by the IceCube Neutrino Observatory at the South Pole. We present a stacking search for high-energy neutrinos from a representative sample of 75 ULIRGs with redshift z ≤ 0.13 using 7.5 yr of IceCube data. The results are consistent with a background-only observation, yielding upper limits on the neutrino flux from these 75 ULIRGs. For an unbroken E−2.5 power-law spectrum, we report an upper limit on the stacked flux ${{\rm{\Phi }}}_{{\nu }_{\mu }+{\bar{\nu }}_{\mu }}^{90 \% }=3.24\times {10}^{-14}\,{\mathrm{TeV}}^{-1}\,{\mathrm{cm}}^{-2}\,{{\rm{s}}}^{-1}\,{(E/10\,\mathrm{TeV})}^{-2.5}$ at 90% confidence level. In addition, we constrain the contribution of the ULIRG source population to the observed diffuse astrophysical neutrino flux as well as model predictions. |
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Massachusetts Institute of Technology. Department of Physics |
format |
Article in Journal/Newspaper |
author |
Conrad, Janet |
spellingShingle |
Conrad, Janet Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
author_facet |
Conrad, Janet |
author_sort |
Conrad, Janet |
title |
Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
title_short |
Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
title_full |
Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
title_fullStr |
Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
title_full_unstemmed |
Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
title_sort |
search for high-energy neutrinos from ultraluminous infrared galaxies with icecube |
publisher |
American Astronomical Society |
publishDate |
2022 |
url |
https://hdl.handle.net/1721.1/142022 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
The American Astronomical Society |
op_relation |
10.3847/1538-4357/ac3cb6 The Astrophysical Journal https://hdl.handle.net/1721.1/142022 Conrad, Janet. 2022. "Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube." The Astrophysical Journal, 926 (1). |
op_rights |
Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ |
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1774723592529903616 |