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H.E.S.S. observations of the flaring gravitationally lensed galaxy PKS 1830-211

Hassan E. Abdalla, Felix A. Aharonian, F. Ait Benkhali, Ekrem Oǧuzhan Angüner, M. Arakawa, C. Arcaro, C. Armand, M. Arrieta, M. Backes, M. Barnard, Y. Becherini, J. Becker Tjus, D. Berge, K. Bernloehr, R. Blackwell, M. Bottcher, C. Boisson, J. Bolmont, S. Bonnefoy, Pol Bordas, J. Bregeon, F. Brun, P. Brun, M. Bryan, M. Buchele, T. Bulik, T. Bylund, M. Capasso, S. Caroff, A. Carosi, Sabrina Casanova, M. Cerruti, N. Chakraborty, T. Chand, S. Chandra, R. C. G. Chaves, A. Chen, S. Colafrancesco, B. Condon, I. D. Davids, C. Deil, J. Devin, P. deWilt, L. Dirson, A. Djannati-Atai, A. Dmytriiev, A. Donath, V. Doroshenko, J. Dyks, Kathrin Egberts, G. Emery, J. -P. Ernenwein, S. Eschbach, S. Fegan, A. Fiasson, G. Fontaine, S. Funk, M. Fuessling, S. Gabici, Y. A. Gallant, F. Gate, G. Giavitto, D. Glawion, J. F. Glicenstein, D. Gottschall, M. -H. Grondin, J. Hahn, M. Haupt, G. Heinzelmann, G. Henri, G. Hermann, James Anthony Hinton, W. Hofmann, Clemens Hoischen, Tim Lukas Holch, M. Holler, D. Horns, D. Huber, H. Iwasaki, A. Jacholkowska, M. Jamrozy, D. Jankowsky, F. Jankowsky, L. Jouvin, I. Jung-Richardt, M. A. Kastendieck, K. Katarzynski, M. Katsuragawa, U. Katz, D. Khangulyan, B. Khelifi, J. King, S. Klepser, W. Kluzniak, Nu. Komin, K. Kosack, M. Kraus, G. Lamanna, J. Lau, J. Lefaucheur, A. Lemiere, M. Lemoine-Goumard, J. -P. Lenain, Eva Leser, T. Lohse, R. Lopez-Coto, M. Lorentz, I. Lypova, D. Malyshev, V. Marandon, A. Marcowith, C. Mariaud, G. Marti-Devesa, R. Marx, G. Maurin, P. J. Meintjes, A. M. W. Mitchell, R. Moderski, M. Mohamed, L. Mohrmann, C. Moore, E. Moulin, T. Murach, S. Nakashima, M. de Naurois, H. Ndiyavala, F. Niederwanger, J. Niemiec, L. Oakes, H. Odaka, S. Ohm, M. Ostrowski, I. Oya, M. Panter, R. D. Parsons, C. Perennes, P. -O. Petrucci, B. Peyaud, Q. Piel, S. Pita, V. Poireau, A. Priyana Noel, D. A. Prokhorov, H. Prokoph, G. Puehlhofer, M. Punch, A. Quirrenbach, S. Raab, R. Rauth, A. Reimer, O. Reimer, M. Renaud, F. Rieger, L. Rinchiuso, C. Romoli, G. Rowell, B. Rudak, E. Ruiz-Velasco, V. Sahakian, S. Saito, David M. Sanchez, A. Santangelo, M. Sasaki, R. Schlickeiser, F. Schussler, A. Schulz, H. Schutte, U. Schwanke, S. Schwemmer, M. Seglar-Arroyo, M. Senniappan, A. S. Seyffert, N. Shafi, I. Shilon, K. Shiningayamwe, R. Simoni, A. Sinha, H. Sol, A. Specovius, M. Spir-Jacob, L. Stawarz, R. Steenkamp, Christian Stegmann, Constantin Beverly Steppa, T. Takahashi, J. -P. Tavernet, T. Tavernier, A. M. Taylor, R. Terrier, D. Tiziani, M. Tluczykont, C. Trichard, M. Tsirou, N. Tsuji, R. Tuffs, Y. Uchiyama, D. J. van der Walt, C. van Eldik, C. van Rensburg, B. van Soelen, G. Vasileiadis, J. Veh, C. Venter, P. Vincent, J. Vink, F. Voisin, H. J. Voelk, T. Vuillaume, Z. Wadiasingh, S. J. Wagner, R. M. Wagner, R. White, A. Wierzcholska, R. Yang, H. Yoneda, D. Zaborov, M. Zacharias, R. Zanin, A. A. Zdziarski, Alraune Zech, A. Ziegler, J. Zorn, N. Zywucka

  • PKS 1830-211 is a known macrolensed quasar located at a redshift of z = 2.5. Its highenergy 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 similar to 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 andPKS 1830-211 is a known macrolensed quasar located at a redshift of z = 2.5. Its highenergy 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 similar to 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.show moreshow less

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Author details:Hassan E. AbdallaORCiDGND, Felix A. AharonianORCiDGND, F. Ait Benkhali, Ekrem Oǧuzhan AngünerGND, M. Arakawa, C. Arcaro, C. Armand, M. Arrieta, M. Backes, M. Barnard, Y. Becherini, J. Becker Tjus, D. Berge, K. Bernloehr, R. Blackwell, M. Bottcher, C. Boisson, J. Bolmont, S. Bonnefoy, Pol BordasORCiDGND, J. Bregeon, F. Brun, P. Brun, M. Bryan, M. Buchele, T. Bulik, T. Bylund, M. Capasso, S. Caroff, A. Carosi, Sabrina CasanovaGND, M. Cerruti, N. Chakraborty, T. Chand, S. Chandra, R. C. G. Chaves, A. Chen, S. Colafrancesco, B. Condon, I. D. Davids, C. Deil, J. Devin, P. deWilt, L. Dirson, A. Djannati-Atai, A. Dmytriiev, A. Donath, V. Doroshenko, J. Dyks, Kathrin EgbertsGND, G. Emery, J. -P. Ernenwein, S. Eschbach, S. Fegan, A. Fiasson, G. Fontaine, S. Funk, M. Fuessling, S. Gabici, Y. A. Gallant, F. Gate, G. Giavitto, D. Glawion, J. F. Glicenstein, D. Gottschall, M. -H. Grondin, J. Hahn, M. Haupt, G. Heinzelmann, G. Henri, G. Hermann, James Anthony HintonGND, W. Hofmann, Clemens HoischenORCiDGND, Tim Lukas HolchORCiD, M. Holler, D. Horns, D. Huber, H. Iwasaki, A. Jacholkowska, M. Jamrozy, D. Jankowsky, F. Jankowsky, L. Jouvin, I. Jung-Richardt, M. A. Kastendieck, K. Katarzynski, M. Katsuragawa, U. Katz, D. Khangulyan, B. Khelifi, J. King, S. Klepser, W. Kluzniak, Nu. Komin, K. Kosack, M. Kraus, G. Lamanna, J. Lau, J. Lefaucheur, A. Lemiere, M. Lemoine-Goumard, J. -P. Lenain, Eva LeserORCiDGND, T. Lohse, R. Lopez-Coto, M. Lorentz, I. Lypova, D. Malyshev, V. Marandon, A. Marcowith, C. Mariaud, G. Marti-Devesa, R. Marx, G. Maurin, P. J. Meintjes, A. M. W. Mitchell, R. Moderski, M. Mohamed, L. Mohrmann, C. Moore, E. Moulin, T. Murach, S. Nakashima, M. de Naurois, H. Ndiyavala, F. Niederwanger, J. Niemiec, L. Oakes, H. Odaka, S. Ohm, M. Ostrowski, I. Oya, M. Panter, R. D. Parsons, C. Perennes, P. -O. Petrucci, B. Peyaud, Q. Piel, S. Pita, V. Poireau, A. Priyana Noel, D. A. Prokhorov, H. Prokoph, G. Puehlhofer, M. Punch, A. Quirrenbach, S. Raab, R. Rauth, A. Reimer, O. Reimer, M. Renaud, F. Rieger, L. Rinchiuso, C. Romoli, G. Rowell, B. Rudak, E. Ruiz-Velasco, V. Sahakian, S. Saito, David M. SanchezORCiD, A. Santangelo, M. Sasaki, R. Schlickeiser, F. Schussler, A. Schulz, H. Schutte, U. Schwanke, S. Schwemmer, M. Seglar-Arroyo, M. Senniappan, A. S. Seyffert, N. Shafi, I. Shilon, K. Shiningayamwe, R. Simoni, A. Sinha, H. Sol, A. Specovius, M. Spir-Jacob, L. Stawarz, R. Steenkamp, Christian StegmannORCiDGND, Constantin Beverly SteppaORCiD, T. Takahashi, J. -P. Tavernet, T. Tavernier, A. M. Taylor, R. Terrier, D. Tiziani, M. Tluczykont, C. Trichard, M. Tsirou, N. Tsuji, R. Tuffs, Y. Uchiyama, D. J. van der Walt, C. van Eldik, C. van Rensburg, B. van Soelen, G. Vasileiadis, J. Veh, C. Venter, P. Vincent, J. Vink, F. Voisin, H. J. Voelk, T. Vuillaume, Z. Wadiasingh, S. J. Wagner, R. M. Wagner, R. White, A. Wierzcholska, R. Yang, H. Yoneda, D. Zaborov, M. Zacharias, R. Zanin, A. A. Zdziarski, Alraune ZechORCiD, A. Ziegler, J. Zorn, N. Zywucka
DOI:https://doi.org/10.1093/mnras/stz1031
ISSN:0035-8711
ISSN:1365-2966
Title of parent work (English):Monthly notices of the Royal Astronomical Society
Publisher:Oxford Univ. Press
Place of publishing:Oxford
Publication type:Article
Language:English
Date of first publication:2019/04/10
Publication year:2019
Creating corporation:H E S S Collaboration
Release date:2021/01/15
Tag:diffuse radiation; gamma-rays: galaxies; gravitational lensing: strong
Volume:486
Issue:3
Number of pages:6
First page:3886
Last Page:3891
Funding institution:German Ministry for Education and Research (BMBF)Federal Ministry of Education & Research (BMBF); Max Planck SocietyMax Planck SocietyFoundation CELLEX; German Research Foundation (DFG)German Research Foundation (DFG); Helmholtz AssociationHelmholtz Association; Alexander von Humboldt FoundationAlexander von Humboldt Foundation; French Ministry of Higher Education, Research and Innovation; Centre National de la Recherche Scientifique (CNRS/IN2P3); UK Science and Technology Facilities Council (STFC)Science & Technology Facilities Council (STFC); Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation; National Science Centre, Poland [2016/22/M/ST9/00382]; South African Department of Science and Technology; University of Namibia; National Commission on Research, Science and Technology of Namibia (NCRST); Austrian Federal Ministry of Education, Science and Research; Austrian Science Fund (FWF)Austrian Science Fund (FWF); Australian Research Council (ARC)Australian Research Council; Japan Society for the Promotion of ScienceMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science; University of Amsterdam; (CEA)French Atomic Energy Commission; National Research Foundation; Centre National de la Recherche Scientifique (CNRS/INSU)Centre National de la Recherche Scientifique (CNRS)
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Peer review:Referiert
Publishing method:Open Access / Green Open-Access
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