Possible correlation between unabsorbed hard x rays and neutrinos in radio-loud and radio-quiet active galactic nuclei
Artikel i vetenskaplig tidskrift, 2024
The first high-energy neutrino source identified by IceCube was a blazar - an active galactic nucleus driving a relativistic jet toward Earth. Jets driven by accreting black holes are commonly assumed to be needed for high-energy neutrino production. Recently, IceCube discovered neutrinos from Seyfert galaxies, which appears unrelated to jet activity. Here, we show that the observed luminosity ratios of neutrinos and hard x rays from blazars TXS0506+056 and GB6J1542+6129 are consistent with neutrino production in a γ-obscured region near a central supermassive black hole, with the x-ray flux corresponding to reprocessed γ-ray emission with flux comparable to that of neutrinos. Similar neutrino-hard x-ray flux ratios are found for four Seyfert galaxies, NGC 1068, NGC 4151, CGCG 420-015, and NGC 3079, raising the possibility of a common neutrino production mechanism that may not involve a strong jet.
Författare
Emma Kun
Ruhr-Universität Bochum
Magyar Tudomanyos Akademia
Research Centre For Astronomy and Earth Sciences
Imre Bartos
College of Liberal Arts and Sciences
Julia Tjus
Magyar Tudomanyos Akademia
Ruhr-Universität Bochum
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Peter L. Biermann
University of Alabama
Max-Planck-Gesellschaft
A. Franckowiak
Ruhr-Universität Bochum
F. Halzen
Wisconsin IceCube Particle Astrophysics Center
Santiago Del Palacio
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Jooyun Woo
Columbia University
Physical Review D - Particles, Fields, Gravitation and Cosmology
24700010 (ISSN) 24700029 (eISSN)
Vol. 110 12 123014Exploring the Hidden Dusty Nuclei of Galaxies (HIDDeN)
Europeiska forskningsrådet (ERC) (789410), 2018-10-01 -- 2023-09-30.
Ämneskategorier
Subatomär fysik
Astronomi, astrofysik och kosmologi
DOI
10.1103/PhysRevD.110.123014