TY - JOUR

T1 - Upper Limit on the Diffuse Radio Background from GZK Photon Observation

AU - Gelmini, Graciela B.

AU - Kalashev, Oleg

AU - Semikoz, Dmitri

N1 - Funding Information: The work of GBG was supported in part by the U.S. Department of Energy (DOE) Grant No. DE-SC0009937. Work of O.K. is supported in the framework of the State project “Science” by the Ministry of Science and Higher Education of the Russian Federation under the contract 075-15-2020-778. Publisher Copyright: © 2022 by the authors.

PY - 2022/8

Y1 - 2022/8

N2 - Here, we point out that an observation of ultrahigh energy cosmic ray (UHECR) photons, “GZK photons”, could provide an upper limit on the level of the extragalactic radio background, depending on the level of UHECR proton primaries (to be determined after a few years of data taking by the Pierre Auger Observatory upgrade AugerPrime). We also update our 2005 prediction of the range of GZK photon fluxes expected from proton primaries.

AB - Here, we point out that an observation of ultrahigh energy cosmic ray (UHECR) photons, “GZK photons”, could provide an upper limit on the level of the extragalactic radio background, depending on the level of UHECR proton primaries (to be determined after a few years of data taking by the Pierre Auger Observatory upgrade AugerPrime). We also update our 2005 prediction of the range of GZK photon fluxes expected from proton primaries.

KW - diffuse radio background

KW - GZK photons

KW - UHECR

UR - http://www.scopus.com/inward/record.url?scp=85136790925&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/82186291-cfc5-3619-97fe-dd7295cba54e/

U2 - 10.3390/universe8080402

DO - 10.3390/universe8080402

M3 - Article

AN - SCOPUS:85136790925

VL - 8

JO - Universe

JF - Universe

SN - 2218-1997

IS - 8

M1 - 402

ER -