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https://hdl.handle.net/2440/121165
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dc.contributor.author | Abdalla, H. | - |
dc.contributor.author | Aharonian, F. | - |
dc.contributor.author | Benkhali, F.A. | - |
dc.contributor.author | Anguner, E.O. | - |
dc.contributor.author | Arakawa, M. | - |
dc.contributor.author | Arcaro, C. | - |
dc.contributor.author | Armand, C. | - |
dc.contributor.author | Arrieta, M. | - |
dc.contributor.author | Backes, M. | - |
dc.contributor.author | Barnard, M. | - |
dc.contributor.author | Becherini, Y. | - |
dc.contributor.author | Tjus, J.B. | - |
dc.contributor.author | Berge, D. | - |
dc.contributor.author | Bernloehr, K. | - |
dc.contributor.author | Blackwell, R. | - |
dc.contributor.author | Bottcher, M. | - |
dc.contributor.author | Boisson, C. | - |
dc.contributor.author | Bolmont, J. | - |
dc.contributor.author | Bonnefoy, S. | - |
dc.contributor.author | Bordas, P. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2019; 486(3):3886-3891 | - |
dc.identifier.issn | 1365-2966 | - |
dc.identifier.issn | 1365-2966 | - |
dc.identifier.uri | http://hdl.handle.net/2440/121165 | - |
dc.description.abstract | PKS 1830–211 is a known macrolensed quasar located at a redshift of z = 2.5. Its high-energy gamma-ray emission has been detected with the Fermi-Large Area Telescope (LAT) instrument and evidence for lensing was obtained by several authors from its high-energy data. Observations of PKS 1830–211 were taken with the High Energy Stereoscopic System (H.E.S.S.) array of Imaging Atmospheric Cherenkov Telescopes in 2014 August, following a flare alert by the Fermi-LAT Collaboration. The H.E.S.S observations were aimed at detecting a gamma-ray flare delayed by 20–27 d from the alert flare, as expected from observations at other wavelengths. More than 12 h of good-quality data were taken with an analysis threshold of ∼67 GeV. The significance of a potential signal is computed as a function of the date and the average significance over the whole period. Data are compared to simultaneous observations by Fermi-LAT. No photon excess or significant signal is detected. An upper limit on PKS 1830–211 flux above 67 GeV is computed and compared to the extrapolation of the Fermi-LAT flare spectrum. | - |
dc.description.statementofresponsibility | H Abdalla, F Aharonian, F Ait Benkhali, E O Angüner ... Gavin P Rowell ... Fabien Voisin ... et al. (H E S S Collaboration) | - |
dc.language.iso | en | - |
dc.publisher | Oxford University Press | - |
dc.rights | 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society | - |
dc.source.uri | http://dx.doi.org/10.1093/mnras/stz1031 | - |
dc.subject | Gravitational lensing: strong; diffuse radiation; gamma-rays: galaxies | - |
dc.title | HESS observations of the flaring gravitationally lensed galaxy PKS 1830-211 | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1093/mnras/stz1031 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Rowell, G. [0000-0002-9516-1581] | - |
Appears in Collections: | Aurora harvest 4 Physics publications |
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