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TANAMI blazars in the IceCube PeV-neutrino fields

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posted on 2023-05-18, 07:31 authored by Krauss, F, Kadler, M, Mannheim, K, Schulz, R, Trustedt, J, Wilms, J, Ojha, R, Ros, E, Anton, G, Baumgartner, W, Beuchert, T, Blanchard, J, Burkel, C, Carpenter, B, Eberl, T, Edwards, PG, Eisenacher, D, Elsasser, D, Fehn, K, Fritsch, U, Gehrels, N, Grafe, C, Grossberger, C, Hase, H, Horiuchi, S, James, C, Kappes, A, Katz, U, Kreikenbohm, A, Kreykenbohm, I, Langejahn, M, Leiter, K, Litzinger, E, James LovellJames Lovell, Muller, C, Phillips, C, Plotz, C, Quick, J, Steinbring, T, Stevens, J, Thompson, DJ, Tzioumis, AK
The IceCube Collaboration has announced the discovery of a neutrino flux in excess of the atmospheric background. Owing to the steeply falling atmospheric background spectrum, events at PeV energies most likely have an extraterrestrial origin. We present the multiwavelength properties of the six radio-brightest blazars that are positionally coincident with these events using contemporaneous data of the TANAMI blazar sample, including high-resolution images and spectral energy distributions. Assuming the X-ray to γ-ray emission originates in the photoproduction of pions by accelerated protons, the integrated predicted neutrino luminosity of these sources is high enough to explain the two detected PeV events.

History

Publication title

Astronomy and Astrophysics

Volume

566

Article number

L7

Number

L7

Pagination

1-5

ISSN

0004-6361

Department/School

School of Natural Sciences

Publisher

EDP Sciences

Place of publication

7, Ave Du Hoggar, Parc D Activites Courtaboeuf, Bp 112, Les Ulis Cedexa, France, F-91944

Rights statement

Copyright 2014 ESO

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in the physical sciences

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