Home > Publications database > Multi-wavelength and neutrino emission from blazar PKS 1502+106 > print

001     449836
005     20211222091333.0
024 7 _ |a Rodrigues:2020fbu
|2 INSPIRETeX
024 7 _ |a inspire:1815877
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024 7 _ |a arXiv:2009.04026
|2 arXiv
024 7 _ |a 10.3204/PUBDB-2020-04053
|2 datacite_doi
037 _ _ |a PUBDB-2020-04053
041 _ _ |a English
088 _ _ |a arXiv:2009.04026
|2 arXiv
100 1 _ |a de Sousa Ferreira Rodrigues, Xavier
|0 P:(DE-H253)PIP1028911
|b 0
|e Corresponding author
|u desy
245 _ _ |a Multi-wavelength and neutrino emission from blazar PKS 1502+106
260 _ _ |c 2020
336 7 _ |a Preprint
|b preprint
|m preprint
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|s 1603888658_15362
|2 PUB:(DE-HGF)
336 7 _ |a WORKING_PAPER
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336 7 _ |a Electronic Article
|0 28
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336 7 _ |a preprint
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336 7 _ |a ARTICLE
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336 7 _ |a Output Types/Working Paper
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500 _ _ |a 13 pages, 5 figures
520 _ _ |a In July of 2019, the IceCube experiment detected a high-energy neutrino from the direction of the powerful blazar PKS 1502+106. We perform multi-wavelength and multi-messenger modeling of this source, using a fully self-consistent one-zone model, which includes the contribution of external radiation fields typical of flat-spectrum radio quasars (FSRQs). We identify three different activity states of the blazar: the quiescent state, and two distinct flaring states with hard and soft gamma-ray spectra. We find two hadronic models that can both describe the multi-wavelength emission during all three states: a leptohadronic model with a contribution from photo-hadronic processes to X-rays and high-energy gamma rays, and a proton synchrotron model, where the emission from keV to 10 GeV comes from proton synchrotron radiation. Both models predict a substantial neutrino flux, which is correlated with the gamma-ray and soft X-ray fluxes. Our results are compatible with the detection of a neutrino during the quiescent state, based on event rate statistics. Upon an extensive parameter scan, we conclude that the soft X-ray fluxes observed during bright gamma-ray flares strongly suggest a hadronic contribution, which can be interpreted as additional evidence for cosmic ray acceleration in the source independently of neutrino observations. We find that more arguments can be made in favor of the leptohadronic model vis-a-vis the proton synchrotron scenario, such as a lower energetic demand during the quiescent state and the fact that the same model has also been shown to describe the observation of neutrinos from blazar TXS 0506+056. The leptohadronic model would be disfavored for flaring states of PKS 1502+106 if no IceCube events were found from the direction of the source before 2010, which would require an archival search.
536 _ _ |a 613 - Matter and Radiation from the Universe (POF3-613)
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|c POF3-613
|f POF III
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536 _ _ |a NEUCOS - Neutrinos and the origin of the cosmic rays (646623)
|0 G:(EU-Grant)646623
|c 646623
|f ERC-2014-CoG
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588 _ _ |a Dataset connected to INSPIRE
650 _ 7 |a model: hadronic
|2 INSPIRE
650 _ 7 |a neutrino: flux
|2 INSPIRE
650 _ 7 |a cosmic radiation: acceleration
|2 INSPIRE
650 _ 7 |a gamma ray: energy spectrum
|2 INSPIRE
650 _ 7 |a blazar
|2 INSPIRE
650 _ 7 |a photon hadron
|2 INSPIRE
650 _ 7 |a proton synchrotron
|2 INSPIRE
650 _ 7 |a radio wave
|2 INSPIRE
650 _ 7 |a X-ray: flux
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650 _ 7 |a IceCube
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650 _ 7 |a messenger
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650 _ 7 |a synchrotron radiation
|2 INSPIRE
650 _ 7 |a statistics
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650 _ 7 |a quasar
|2 INSPIRE
693 _ _ |0 EXP:(DE-MLZ)NOSPEC-20140101
|5 EXP:(DE-MLZ)NOSPEC-20140101
|e No specific instrument
|x 0
700 1 _ |a Garrappa, Simone
|0 P:(DE-H253)PIP1022301
|b 1
|u desy
700 1 _ |a Gao, Shan
|0 P:(DE-H253)PIP1023210
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700 1 _ |a Paliya, Vaidehi S.
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700 1 _ |a Franckowiak, Anna
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700 1 _ |a Winter, Walter
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856 4 _ |y OpenAccess
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910 1 _ |a Deutsches Elektronen-Synchrotron
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913 1 _ |a DE-HGF
|b Forschungsbereich Materie
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914 1 _ |y 2020
915 _ _ |a OpenAccess
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915 _ _ |a Published
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920 1 _ |0 I:(DE-H253)ZEU-EXP_AT-20120731
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