H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510−089

A. Abramowski; Fabio Acero; F. Aharonian; A. G. Akhperjanian; G. Anton; S. Balenderan; Agnès Balzer; A. Barnacka; Y. Becherini; J. Becker Tjus; B. Behera; K. Bernlöhr; E. Birsin; J. Biteau; A. Bochow; C. Boisson; J. Bolmont; P. Bordas; J. Brucker; F. Brun; P. Brun; T. Bulik; S. Carrigan; S. Casanova; M. Cerruti; P. M. Chadwick; R. C. G. Chaves; A. Cheesebrough; S. Colafrancesco; G. Cologna; J. Conrad; C. Couturier; M. Dalton; M. K. Daniel; I. D. Davids; B. Degrange; C. Deil; P. Dewilt; H. J. Dickinson; A. Djannati-Ataï; W. Domainko; L. O’c. Drury; G. Dubus; K. Dutson; J. Dyks; M. Dyrda; K. Egberts; P. Eger; P. Espigat; L. Fallon; C. Farnier; S. Fegan; F. Feinstein; M. V. Fernandes; D. Fernandez; A. Fiasson; G. Fontaine; A. Förster; M. Füssling; M. Gajdus; Y. A. Gallant; T. Garrigoux; H. Gast; B. Giebels; J. F. Glicenstein; B. Glück; D. Göring; M.-H. Grondin; M. Grudzińska; S. Häffner; J. D. Hague; J. Hahn; D. Hampf; J. Harris; M. Hauser; S. Heinz; G. Heinzelmann; G. Henri; G. Hermann; A. Hillert; J. A. Hinton; W. Hofmann; P. Hofverberg; M. Holler; D. Horns; A. Jacholkowska; C. Jahn; M. Jamrozy; I. Jung; M. A. Kastendieck; K. Katarzyński; U. Katz; S. Kaufmann; B. Khélifi; S. Klepser; D. Klochkov; W. Kluźniak; T. Kneiske; D. Kolitzus; Nu. Komin; K. Kosack; R. Kossakowski; F. Krayzel; P. P. Krüger; H. Laffon; G. Lamanna; J. Lefaucheur; M. Lemoine-Goumard; J.-P. Lenain; D. Lennarz; T. Lohse; A. Lopatin; C.-C. Lu; V. Marandon; A. Marcowith; Julien Masbou; G. Maurin; N. Maxted; M. Mayer; T. J. L. Mccomb; M. C. Medina; J. Méhault; U. Menzler; R. Moderski; M. Mohamed; Emmanuel Moulin; C. L. Naumann; M. Naumann-Godo; M. de Naurois; D. Nedbal; N. Nguyen; J. Niemiec; S. J. Nolan; S. Ohm; E. de Oña Wilhelmi; B. Opitz; M. Ostrowski; I. Oya; M. Panter; R. D. Parsons; M. Paz Arribas; N. W. Pekeur; G. Pelletier; J. Perez; P.-O. Petrucci; B. Peyaud; G. Pühlhofer; S. Pita; M. Punch; A. Quirrenbach; S. Raab; M. Raue; A. Reimer; O. Reimer; M. Renaud; R. de Los Reyes; F. Rieger; J. Ripken; L. Rob; S. Rosier-Lees; G. Rowell; B. Rudak; C. B. Rulten; V. Sahakian; D. A. Sanchez; A. Santangelo; R. Schlickeiser; A. Schulz; U. Schwanke; S. Schwarzburg; S. Schwemmer; F. Sheidaei; J. L. Skilton; H. Sol; G. Spengler; Ł. Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; K. Stycz; I. Sushch; A. Szostek; J.-P. Tavernet; R. Terrier; M. Tluczykont; C. Trichard; K. Valerius; C. van Eldik; G. Vasileiadis; C. Venter; A. Viana; P. Vincent; H. J. Völk; F. Volpe; S. Vorobiov; M. Vorster; S. J. Wagner; M. Ward; R. White; A. Wierzcholska; D. Wouters; M. Zacharias; A. Zajczyk; A. A. Zdziarski; A. Zech; H. S. Zechlin

doi:10.1051/0004-6361/201321135

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H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510−089

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H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510−089

A. Abramowski, Fabio Acero, F. Aharonian, A. G. Akhperjanian, G. Anton, S. Balenderan, Agnès Balzer, A. Barnacka, Y. Becherini, J. Becker Tjus, …

Astronomy & Astrophysics - A&A, Vol.554

2013

DOI: https://doi.org/10.1051/0004-6361/201321135

Abstract

quasars: individual: PKS 1510

089

infrared: diffuse background

gamma rays: galaxies

The quasar PKS 1510−089 (z = 0.361) was observed with the H.E.S.S. array of imaging atmospheric Cherenkov telescopes during high states in the optical and GeV bands, to search for very high energy (VHE, defined as E ≥ 0.1 TeV) emission. VHE γ-rays were detected with a statistical significance of 9.2 standard deviations in 15.8 h of H.E.S.S. data taken during March and April 2009. A VHE integral flux of I(0.15 TeV < E < 1.0 TeV)= (1.0 ± 0.2stat ± 0.2sys) × 10-11 cm-2 s-1 is measured. The best-fit power law to the VHE data has a photon index of Γ = 5.4 ± 0.7stat ± 0.3sys. The GeV and optical light curves show pronounced variability during the period of H.E.S.S. observations. However, there is insufficient evidence to claim statistically significant variability in the VHE data. Because of its relatively high redshift, the VHE flux from PKS 1510−089 should suffer considerable attenuation in the intergalactic space due to the extragalactic background light (EBL). Hence, the measured γ-ray spectrum is used to derive upper limits on the opacity due to EBL, which are found to be comparable with the previously derived limits from relatively-nearby BL Lac objects. Unlike typical VHE-detected blazars where the broadband spectrum is dominated by nonthermal radiation at all wavelengths, the quasar PKS 1510−089 has a bright thermal component in the optical to UV frequency band. Among all VHE detected blazars, PKS 1510−089 has the most luminous broad line region. The detection of VHE emission from this quasar indicates a low level of γ − γ absorption on the internal optical to UV photon field.

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Title: H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510−089
Creators - without role: A. Abramowski - Universität Hamburg
Fabio Acero - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Aharonian - National Academy of Sciences of Armenia
A. G. Akhperjanian - National Academy of Sciences of Armenia
G. Anton - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Balenderan - Durham University
Agnès Balzer - University of Potsdam
A. Barnacka - Nicolaus Copernicus Astronomical Center
Y. Becherini - Délégation Paris 7
J. Becker Tjus
B. Behera - Heidelberg University
K. Bernlöhr - Max Planck Institute for Nuclear Physics
E. Birsin - Humboldt-Universität zu Berlin
J. Biteau - École Polytechnique
A. Bochow - Max Planck Institute for Nuclear Physics
C. Boisson - Délégation Paris 7
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
P. Bordas - University of Tübingen
J. Brucker - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Brun - École Polytechnique
P. Brun - Institut de Recherche sur les Lois Fondamentales de l'Univers
T. Bulik - University of Warsaw
S. Carrigan - Max Planck Institute for Nuclear Physics
S. Casanova - North-West University
M. Cerruti - Centre National de la Recherche Scientifique
P. M. Chadwick - Durham University
R. C. G. Chaves - Institut de Recherche sur les Lois Fondamentales de l'Univers
A. Cheesebrough - Durham University
S. Colafrancesco - University of the Witwatersrand
G. Cologna - Heidelberg University
J. Conrad - Stockholm University
C. Couturier - Sorbonne Université
M. Dalton - Centre National de la Recherche Scientifique
M. K. Daniel - Durham University
I. D. Davids - University of Namibia
B. Degrange - École Polytechnique
C. Deil - Max Planck Institute for Nuclear Physics
P. Dewilt - University of Adelaide
H. J. Dickinson - Stockholm University
A. Djannati-Ataï - AstroParticule et Cosmologie
W. Domainko - Max Planck Institute for Nuclear Physics
L. O’c. Drury - Dublin Institute For Advanced Studies
G. Dubus - Centre National de la Recherche Scientifique
K. Dutson - University of Leicester
J. Dyks - Nicolaus Copernicus Astronomical Center
M. Dyrda - Institute of Nuclear Physics, Polish Academy of Sciences
K. Egberts - Universität Innsbruck
P. Eger - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Espigat - Université Paris Cité
L. Fallon - Dublin Institute For Advanced Studies
C. Farnier - Stockholm University
S. Fegan - Laboratoire Leprince-Ringuet
F. Feinstein - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. V. Fernandes - Universität Hamburg
D. Fernandez - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
A. Fiasson - Laboratoire d’Annecy de Physique des Particules
G. Fontaine - Laboratoire Leprince-Ringuet
A. Förster - Max Planck Institute for Nuclear Physics
M. Füssling
M. Gajdus - Humboldt-Universität zu Berlin
Y. A. Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
T. Garrigoux - Laboratoire de Physique Nucléaire et de Hautes Énergies
H. Gast - Max Planck Institute for Nuclear Physics
B. Giebels - Laboratoire Leprince-Ringuet
J. F. Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
B. Glück - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Göring - Friedrich-Alexander-Universität Erlangen-Nürnberg
M.-H. Grondin - Max Planck Institute for Nuclear Physics
M. Grudzińska - University of Warsaw
S. Häffner - Friedrich-Alexander-Universität Erlangen-Nürnberg
J. D. Hague - Max Planck Institute for Nuclear Physics
J. Hahn - Max Planck Institute for Nuclear Physics
D. Hampf - Universität Hamburg
J. Harris - Durham University
M. Hauser - Heidelberg University
S. Heinz - Friedrich-Alexander-Universität Erlangen-Nürnberg
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
A. Hillert - Max Planck Institute for Nuclear Physics
J. A. Hinton - University of Leicester
W. Hofmann - Max Planck Institute for Nuclear Physics
P. Hofverberg - Max Planck Institute for Nuclear Physics
M. Holler - University of Potsdam
D. Horns - Universität Hamburg
A. Jacholkowska - Laboratoire de Physique Nucléaire et de Hautes Énergies
C. Jahn - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Jamrozy - Jagiellonian University
I. Jung - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. A. Kastendieck - Universität Hamburg
K. Katarzyński - Nicolaus Copernicus University
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Kaufmann - Heidelberg University
B. Khélifi - École Polytechnique
S. Klepser
D. Klochkov - University of Tübingen
W. Kluźniak - Nicolaus Copernicus Astronomical Center
T. Kneiske - Universität Hamburg
D. Kolitzus - Universität Innsbruck
Nu. Komin - Laboratoire d’Annecy de Physique des Particules
K. Kosack - CEA Paris-Saclay
R. Kossakowski - Laboratoire d’Annecy de Physique des Particules
F. Krayzel - Laboratoire d’Annecy de Physique des Particules
P. P. Krüger - North-West University
H. Laffon - Laboratoire Leprince-Ringuet
G. Lamanna - Laboratoire d’Annecy de Physique des Particules
J. Lefaucheur - Délégation Paris 7
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P. Lenain - Sorbonne Université
D. Lennarz - Max Planck Institute for Nuclear Physics
T. Lohse - Humboldt-Universität zu Berlin
A. Lopatin - Friedrich-Alexander-Universität Erlangen-Nürnberg
C.-C. Lu - Max Planck Institute for Nuclear Physics
V. Marandon - Max Planck Institute for Nuclear Physics
A. Marcowith - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
Julien Masbou - Centre National de la Recherche Scientifique
G. Maurin - Institut National de Physique Nucléaire et de Physique des Particules
N. Maxted - University of Adelaide
M. Mayer - University of Potsdam
T. J. L. Mccomb - Durham University
M. C. Medina - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J. Méhault - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
U. Menzler - Ruhr University Bochum
R. Moderski - Nicolaus Copernicus Astronomical Center
M. Mohamed - Heidelberg University
Emmanuel Moulin - Institut de Recherche sur les Lois Fondamentales de l'Univers
C. L. Naumann - Sorbonne Université
M. Naumann-Godo - CEA Paris-Saclay
M. de Naurois - École Polytechnique
D. Nedbal - Charles University
N. Nguyen - Universität Hamburg
J. Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
S. J. Nolan - Durham University
S. Ohm - University of Leicester
E. de Oña Wilhelmi - Max Planck Institute for Nuclear Physics
B. Opitz - Universität Hamburg
M. Ostrowski - Jagiellonian University
I. Oya
M. Panter - Max Planck Institute for Nuclear Physics
R. D. Parsons - Max Planck Institute for Nuclear Physics
M. Paz Arribas
N. W. Pekeur - North-West University
G. Pelletier - Centre National de la Recherche Scientifique
J. Perez - Universität Innsbruck
P.-O. Petrucci - Institut de Planétologie et d'Astrophysique de Grenoble
B. Peyaud - Institut de Recherche sur les Lois Fondamentales de l'Univers
G. Pühlhofer - University of Tübingen
S. Pita - Université Paris Cité
M. Punch - Délégation Paris 7
A. Quirrenbach - Heidelberg University
S. Raab - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Raue - Universität Hamburg
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
M. Renaud - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
R. de Los Reyes - Max Planck Institute for Nuclear Physics
F. Rieger - Max Planck Institute for Nuclear Physics
J. Ripken - Stockholm University
L. Rob - Charles University
S. Rosier-Lees - Laboratoire d’Annecy de Physique des Particules
G. Rowell - University of Adelaide
B. Rudak - Nicolaus Copernicus Astronomical Center
C. B. Rulten - Durham University
V. Sahakian - A. Alikhanyan National Laboratory
D. A. Sanchez - Max Planck Institute for Nuclear Physics
A. Santangelo - University of Tübingen
R. Schlickeiser - Ruhr University Bochum
A. Schulz
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwarzburg - University of Tübingen
S. Schwemmer - Heidelberg University
F. Sheidaei - North-West University
J. L. Skilton - Max Planck Institute for Nuclear Physics
H. Sol - Université Paris Cité
G. Spengler - Humboldt-Universität zu Berlin
Ł. Stawarz - Jagiellonian University
R. Steenkamp - University of Namibia
C. Stegmann - University of Potsdam
F. Stinzing - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Stycz
I. Sushch - Humboldt-Universität zu Berlin
A. Szostek - Jagiellonian University
J.-P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
R. Terrier - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
M. Tluczykont - Universität Hamburg
C. Trichard - Institut National de Physique Nucléaire et de Physique des Particules
K. Valerius - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. van Eldik - Max Planck Institute for Nuclear Physics
G. Vasileiadis - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
C. Venter - North-West University
A. Viana - Max Planck Institute for Nuclear Physics
P. Vincent - Sorbonne Université
H. J. Völk - Max Planck Institute for Nuclear Physics
F. Volpe - Max Planck Institute for Nuclear Physics
S. Vorobiov - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Vorster - North-West University
S. J. Wagner - Heidelberg University
M. Ward - Durham University
R. White - University of Leicester
A. Wierzcholska - Jagiellonian University
D. Wouters - Institut de Recherche sur les Lois Fondamentales de l'Univers
M. Zacharias - Ruhr University Bochum
A. Zajczyk - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
A. A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Universität Hamburg
H. S. Zechlin - Universität Hamburg
Publication Details: Astronomy & Astrophysics - A&A, Vol.554
Identifiers: 9937844509311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: cea-01135395