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A Time-Variability ...
A Time-Variability Test for Candidate Neutrino Sources Observed with IceCube
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- Abbasi, R. (författare)
- Loyola Univ Chicago, Dept Phys, Chicago, IL 60660 USA
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- Botner, Olga (författare)
- Uppsala universitet,Högenergifysik
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- Burgman, Alexander (författare)
- Uppsala universitet,Högenergifysik,FREIA
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- Glaser, Christian (författare)
- Uppsala universitet,Högenergifysik
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- Hallgren, Allan, 1951- (författare)
- Uppsala universitet,Högenergifysik
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- O'Sullivan, Erin (författare)
- Uppsala universitet,Högenergifysik
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- Pérez de los Heros, Carlos (författare)
- Uppsala universitet,Högenergifysik
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- Sharma, Ankur (författare)
- Uppsala universitet,Högenergifysik
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- Valtonen-Mattila, Nora (författare)
- Uppsala universitet,Högenergifysik
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- Zhang, Z. (författare)
- SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
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(creator_code:org_t)
- Trieste, Italy : Sissa Medialab Srl, 2022
- 2022
- Engelska.
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Ingår i: 37th International Cosmic Ray Conference (ICRC 2021). - Trieste, Italy : Sissa Medialab Srl.
- Relaterad länk:
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https://doi.org/10.2...
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https://uu.diva-port... (primary) (Raw object)
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https://pos.sissa.it...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- Recent studies with IceCube have shown signs of a time-integrated flux of astrophysical neutrinos from point-like sources such as TXS 0506+056 and NGC 1068. Time-variability of this neutrino emission from TXS 0506+056 has been studied extensively by assuming a temporal profile of the possible flare(s) or searching for temporal neutrino correlation with other electromagnetic counterparts. However, experimental evidence of the temporal profile of an astrophysical neutrino signal, besides the TXS 0506+056 source, remains lacking. In this study, we present a new KS-test based method for investigating time-variability. This new method complements the existing time-dependent search methods with a test for arbitrary time-variability, independent of an assumed temporal profile or electromagnetic counterpart. Additionally, this method provides a diagnostic tool for characterizing point-like source candidates in IceCube by distinguishing variable from steady neutrino emission and we show results of applying this method to a small catalog of candidate blazars.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)