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Journal article
Search for Astrophysical Neutrinos from 1FLE Blazars with IceCube
The Astrophysical journal, v 938(1), 38
01 Oct 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The majority of astrophysical neutrinos have undetermined origins. The IceCube Neutrino Observatory has observed astrophysical neutrinos but has not yet identified their sources. Blazars are promising source candidates, but previous searches for neutrino emission from populations of blazars detected in ≳ GeV gamma rays have not observed any significant neutrino excess. Recent findings in multimessenger astronomy indicate that high-energy photons, coproduced with high-energy neutrinos, are likely to be absorbed and reemitted at lower energies. Thus, lower-energy photons may be better indicators of TeV-PeV neutrino production. This paper presents the first time-integrated stacking search for astrophysical neutrino emission from MeV-detected blazars in the first Fermi Large Area Telescope low energy (1FLE) catalog using ten years of IceCube muon-neutrino data. The results of this analysis are found to be consistent with a background-only hypothesis. Assuming an E-2 neutrino spectrum and proportionality between the blazars MeV gamma-ray fluxes and TeV-PeV neutrino flux, the upper limit on the 1FLE blazar energy-scaled neutrino flux is determined to be 1.64 × 10-12 TeV cm-2 s-1 at 90% confidence level. This upper limit is approximately 1% of IceCube's diffuse muon-neutrino flux measurement.
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Details
- Title
- Search for Astrophysical Neutrinos from 1FLE Blazars with IceCube
- Creators
- IceCube Collaboration (Collaboration)R AbbasiM AckermannJ AdamsJ A AguilarM AhlersM AhrensJ M AlameddineA A AlvesN M AminK AndeenT AndersonG AntonC ArgüellesY AshidaS AthanasiadouS AxaniX BaiA Balagopal V.M BaricevicS W BarwickV BasuR BayJ J BeattyK-H BeckerJ Becker TjusJ BeiseC BellenghiS BendaS BenZviD BerleyE BernardiniD Z BessonG BinderD BindigE BlaufussS BlotF BontempoJ Y BookJ BorowkaS BöserO BotnerJ BöttcherE BourbeauF BradascioJ BraunB BrinsonS BronJ Brostean-KaiserR T BurleyR S BusseM A Campana - Drexel UniversityE G Carnie-BroncaC ChenZ ChenD ChirkinK ChoiB A ClarkL ClassenA ColemanG H CollinA ConnollyJ M ConradP CoppinP CorreaD F CowenR CrossC DappenP DaveC De ClercqJ J DeLaunayD Delgado LópezH DembinskiK DeoskarA DesaiP DesiatiK D de VriesG de WasseigeT DeYoungA DiazJ C Díaz-VélezM DittmerH DujmovicM A DuVernoisT EhrhardtP EllerR EngelH ErpenbeckJ EvansP A EvensonK L FanA R FazelyA FedynitchN FeiglS FiedlschusterA T FienbergC FinleyL FischerD FoxA FranckowiakE FriedmanXinyue Kang - Drexel University, PhysicsMichael G Kovacevich - Drexel University, PhysicsNaoko Kurahashi Neilson - Drexel University, PhysicsMark Richman - Drexel UniversityStephen James Sclafani - Drexel University, Physics
- Publication Details
- The Astrophysical journal, v 938(1), 38
- Publisher
- Institute of Physics (IOP)
- Number of pages
- 25
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000866220400001
- Scopus ID
- 2-s2.0-85150274852
- Other Identifier
- 991021000436904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics