Colafrancesco, S.Jingo, M.Shafi, N.Abdalla, H.Abramowski, A.Aharonian, F.Ait Benkhali, F.Akhperjanian, A. G.Andersson, T.Angüner, E. O.Arakawa, M.Arrieta, M.Aubert, P.Backes, M.Balzer, A.Barnard, M.Chen, A.Jingo, M.Komin, N.Shafi, N.2019-09-182019-09-182017-01-01Abdalla, H. et al. 2017. First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst - HESS observations of FRB 150418. ASTRONOMY & ASTROPHYSICS 597, Article number A115.0004-6361 (Print)1432-0746 (Online)https://hdl.handle.net/10539/28121Aims. 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 Φγ(E > 350 GeV) < 1.33 × 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 × 1047 erg/s at 99% C.L.en© ESO, 2017.Gamma rays: generalAstroparticle physicsTellurium compoundsAfterglow emissionDifferential fluxExtragalactic background lightGamma-ray observationsImaging atmospheric Cherenkov telescopesVery high energiesGamma raysCOSMOLOGICAL DISTANCESNEUTRON-STARSASTRONOMYCATALOGGALAXYArticle