Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube
Name
Abbasi_2022_ApJ_926_59.pdf
Description
Published version
Size
1.38 MB
Format
Adobe PDF
Checksum (MD5)
8b9473a231ac990fd54f30f088b24185
Author(s)
Conrad, Janet
Date Issued
February 1, 2022
Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Citation
Conrad, Janet. 2022. "Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube." The Astrophysical Journal, 926 (1).
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3847/1538-4357/ac3cb6
