All-sky Search for Time-integrated Neutrino Emission from Astrophysical Sources with 7 yr of IceCube Data
- Univ. of Adelaide, SA (Australia). Dept. of Physics
- Technische Univ. Munchen, Garching (Germany). Dept. Physik
- DESY, Zeuthen (Germany)
- Univ. of Canterbury, Christchurch (New Zealand). Dept. of Physics and Astronomy
- Univ. Libre de Bruxelles, Brussels (Belgium)
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Univ. of Wisconsin, Madison, WI (United States). Wisconsin IceCube Particle Astrophysics Center
- Stockholm Univ. (Sweden). Oskar Klein Centre and Dept. of Physics
- Friedrich-Alexander-Univ. Erlangen-Murnberg, Erlangen (Germany). Erlangen Centre for Astroparticle Physics
- Marquette Univ., Milwaukee, WI (United States). Dept. of Physics
- Pennsylvania State Univ., University Park, PA (United States). Dept of Physics
- Univ. Libre de Bruxelles, Brusseles (Belgium)
- Friedrich-Alexander-Univ. Erlangen-Nurnberg, Erlangen (Germany). Erlangen Centre for Astroparticle Physics
- Univ. of Mainz (Germany). Inst. of Physics
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics
- RWTH Aachen Univ. (Germany). Physikalisches Inst.
- South Dakota School of Mines and Technology, Rapid City, SD (United States). Physics Dept.
- Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
- Univ. of Mainz (Germany). Inst. for Physics
- Univ. of California, Berkeley, CA (United States). Dept. of Physics
- The Ohio State Univ., Columbus, OH (United States). Dept of Physics; The Ohio State Univ., Columbus, OH (United States). Center for Cosmology and Astro-Particle Physics; The Ohio State Univ., Columbus, OH (United States). Dept of Astronomy
- Ruhr-Univ. Bochum (Germany). Fakultat fur Physik & Astronomie
- Univ. of Wuppertal (Germany). Dept. of Physics
- Univ. of Rochester, NY (United States). Dept. of Physics and Astronomy
- Univ. of Maryland, College Park, MD (United States). Dept. of Physics
- Univ. of Kansas, Lawrence, KS (United States). Dept. of Physics and Astronomy
- Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- TU Dortmund Univ. (Germany). Dept. of Physics
- Sungkyunkwan Univ., Suwon (Republic of Korea). Dept. of Physics
- Univ. of Mainz (Germany) Inst. of Physics
- Uppsala Univ. (Sweden). Dept. of Physics and Astronomy
- Vrije Univ. Brussel, Brussels (Belgium)
- Univ. de Geneve (Switzerland). Dept. de Physique Nucleaire et Corpusculaire
- Univ. de Geneve (Switzerland). Dept. de Physique Nuclaire et Corpusculaire
- Univ. of Toronto, ON (Canada). Dept. of Physics
- Westfalische Wilhelms-Univ. Munster (Germany). Inst. fur Kernphysik
- Pennsylvania State Univ., University Park, PA (United States). Dept of Physics; Univ. of Pennsylvania, University Park, PA (United States). Dept. of Physics and Astronomy
- Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy
- Vrije Univ. Brussel, Brussels (Germany)
- Univ. of Delaware, Newark, DE (United States). Bartol Research Inst. and Dept. of Physics and Astronomy
- Univ. of Gent (Belgium). Dept. of Physics and Astronomy
- Humboldt Univ. of Berlin (Germany). Inst. fur Physik
- Univ. of Mainz (Germany). Inst of Physics
- Ruhr Univ., Bochum (Germany). Fakultat fur Physik
- Southern Univ., Baton Rouge, LA (United States). Dept. of Physics
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Astronomy
- Univ. of Alberta, Edmonton, AB (Canada). Dept. of Physics
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Copenhagen (Denmark). The Niels Bohr Inst.
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Univ. of Wisconsin, Madison, WI (United States). Wisconsin IceCube Particle Astrophysics Center; Univ. of Tokyo. Earthquake Research Inst.
- Chiba Univ. (Japan). Dept. of Physics and Inst. for Global Prominent Research
- Clark-Atlanta Univ., GA (United States). CTSPS
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Physics Dept.
- Westfalische Wilhelm-Univ. Munster (Germany). Inst. fur Kernphysik
- Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy
- Univ. of Mons (Belgium)
- DESY, Zeuthen (Germany); Humboldt Univ. of Berlin (Germany). Inst. fur Physik
- Drexel Univ., Philadelphia, PA (United States). Dept. of Physics
- Clark-Atlanta, GA (United States). CTSPS
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics
- Ruhr Univ., Bochum (Germany). Fakultat fur Physik & Astronomie
- Yale Univ., New Haven, CT (United States). Dept. of Physics
- Univ. of Alabama, Tuscaloosa, AL (United States). Dept. of Physics and Astronomy
- Univ. of Alaska Anchorage, AK (United States). Dept. of Physics and Astronomy
- RWTH Aachen Univ. (Germany). Phyiskalisches Inst.
- RWTH Aachen Univ. (Germany). Physikalisches Isnt.
- Univ. of Copenhagen (Denmark). The Niels Bohr Inst.; Univ. of Oxford (United Kingdom). Dept. of Physics
- The Ohio State Univ., Columbus, OH (United States). Dept of Physics; The Ohio State Univ., Columbus, OH (United States). Center for Cosmology and Astro-Particle Physics
- Georgia Inst. of Technology, Atlanta, GA (United States). School of Physics and Center for Relativistic Astrophysics
- Univ. Bonn (Germany). Physikalisches Inst.
- Univ. de Mons (Belgium)
Since the recent detection of an astrophysical flux of high-energy neutrinos, the question of its origin has not yet fully been answered. Much of what is known about this flux comes from a small event sample of high neutrino purity, good energy resolution, but large angular uncertainties. In searches for point-like sources, on the other hand, the best performance is given by using large statistics and good angular reconstructions. Track-like muon events produced in neutrino interactions satisfy these requirements. We present here the results of searches for point-like sources with neutrinos using data acquired by the IceCube detector over 7 yr from 2008 to 2015. The discovery potential of the analysis in the northern sky is now significantly below $${E}_{\nu }^{2}d\phi /{{dE}}_{\nu }$$ = 10–12 TeV cm–2 s–1, on average 38% lower than the sensitivity of the previously published analysis of 4 yr exposure. No significant clustering of neutrinos above background expectation was observed, and implications for prominent neutrino source candidates are discussed.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center
- Sponsoring Organization:
- USDOE
- Contributing Organization:
- IceCube Collaboration
- OSTI ID:
- 1524421
- Journal Information:
- The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 2 Vol. 835; ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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