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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| Format: | Article |
| Language: | English |
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American Astronomical Society
2022
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| Online Access: | https://hdl.handle.net/1721.1/142022 |
| _version_ | 1811080947796279296 |
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| author | Conrad, Janet |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Conrad, Janet |
| author_sort | Conrad, Janet |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T11:39:22Z |
| format | Article |
| id | mit-1721.1/142022 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:39:22Z |
| publishDate | 2022 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1420222023-07-28T20:55:25Z Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube Conrad, Janet Massachusetts Institute of Technology. Department of Physics 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. 2022-04-21T17:46:24Z 2022-04-21T17:46:24Z 2022-02-01 2022-04-21T17:40:02Z Article http://purl.org/eprint/type/JournalArticle 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). en 10.3847/1538-4357/ac3cb6 The Astrophysical Journal Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Astronomical Society The American Astronomical Society |
| spellingShingle | Conrad, Janet Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
| title | 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_short | Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube |
| title_sort | search for high energy neutrinos from ultraluminous infrared galaxies with icecube |
| url | https://hdl.handle.net/1721.1/142022 |
| work_keys_str_mv | AT conradjanet searchforhighenergyneutrinosfromultraluminousinfraredgalaxieswithicecube |