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First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst HESS observations of FRB 150418
North-West University, South Africa.
North-West University, South Africa ; University of Hamburg, Germany ; Humboldt University of Berlin, Germany.
Max Planck Institute for Nuclear Physics, Germany ; Dublin Institute for Advanced Studies, Ireland ; National Academy of Sciences of the Republic of Armenia, Armenia.
Max Planck Institute for Nuclear Physics, Germany.
Vise andre og tillknytning
2017 (engelsk)Inngår i: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 597, artikkel-id A115Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Aims. Following the detection of the fast radio burst FRB150418 by the SUPERB project at the Parkes radio telescope, we aim to search for very-high energy gamma-ray afterglow emission. Methods. Follow-up observations in the very-high energy gamma-ray domain were obtained with the H.E.S.S. imaging atmospheric Cherenkov telescope system within 14.5 h of the radio burst. Results. The obtained 1.4 h of gamma-ray observations are presented and discussed. At the 99% C.L. we obtained an integral upper limit on the gamma-ray flux of Phi(gamma)(E > 350 GeV) < 1.33 x 10(-8) m(-2) s(-1). Differential flux upper limits as function of the photon energy were derived and used to constrain the intrinsic high-energy afterglow emission of FRB 150418. Conclusions. No hints for high-energy afterglow emission of FRB 150418 were found. Taking absorption on the extragalactic background light into account and assuming a distance of z = 0 : 492 based on radio and optical counterpart studies and consistent with the FRB dispersion, we constrain the gamma-ray luminosity at 1 TeV to L < 5 : 1 x 10(47) erg/s at 99% C.L.

sted, utgiver, år, opplag, sider
The European Southern Observatory (ESO) , 2017. Vol. 597, artikkel-id A115
Emneord [en]
gamma rays: general, astroparticle physics
HSV kategori
Forskningsprogram
Fysik, Astropartikelfysik
Identifikatorer
URN: urn:nbn:se:lnu:diva-61438DOI: 10.1051/0004-6361/201629117ISI: 000392392900083Scopus ID: 2-s2.0-85010432812OAI: oai:DiVA.org:lnu-61438DiVA, id: diva2:1082419
Tilgjengelig fra: 2017-03-16 Laget: 2017-03-16 Sist oppdatert: 2019-09-05bibliografisk kontrollert

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