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

Autores: Acero, F.; Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Abramowski, A.; Medina, Maria Clementina; Tavernet, J.P.; Terrier, R.; Tluczykont, M.; Trichar, C.; Valerius, K.; van Eldik, C.; Vasileiadis, G.; Venter, C.; Viana, A.; Vincent, P.; Völk, H. J.; Volpe, F.; Vorobiov, S.; Vorster, M.; Wagner, S. J.; Ward, M.; White, R.; Wierzcholska, A.; Wouters, D.; Zacharias, M.; Zajczyk, A.; Zdziarski, A. A.; Zech, A.; Zechlin, H. S.
Año de publicación: 2013
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: 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.
Fil: Acero, F.. Universite Montpellier II; Francia
Fil: Aharonian, F.. Max Planck Institut für Kernphysik; Alemania
Fil: Akhperjanian, A. G.. Yerevan Physics Institute; Armenia
Fil: Anton, G.. Universität Erlangen Nürnberg; Alemania
Fil: Abramowski, A.. Universität Hamburg; Alemania
Fil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomia; Argentina
Fil: Tavernet, J.P.. University of Adelaide; Australia
Fil: Terrier, R.. Université Paris Diderot - Paris 7; Francia
Fil: Tluczykont, M.. Universitat Hamburg; Alemania
Fil: Trichar, C.. Université de Savoie; Francia
Fil: Valerius, K.. Universität Erlangen Nürnberg; Alemania
Fil: van Eldik, C.. Max Planck Institut für Kernphysik; Alemania
Fil: Vasileiadis, G.. Universite Montpellier II; Francia
Fil: Venter, C.. North West University; Sudáfrica
Fil: Viana, A.. Max Planck Institut für Kernphysik; Alemania
Fil: Vincent, P.. University of Adelaide; Australia
Fil: Völk, H. J.. Max Planck Institut für Kernphysik; Alemania
Fil: Volpe, F.. Max Planck Institut für Kernphysik; Alemania
Fil: Vorobiov, S.. Universite Montpellier II; Francia
Fil: Vorster, M.. North West University; Sudáfrica
Fil: Wagner, S. J.. Universität Heidelberg; Alemania
Fil: Ward, M.. University Of Durham; Reino Unido
Fil: White, R.. University of Leicester; Reino Unido
Fil: Wierzcholska, A.. Uniwersytet Jagiellonski; Polonia
Fil: Wouters, D.. CEA Saclay; Francia
Fil: Zacharias, M.. Ruhr-universität Bochum; Alemania
Fil: Zajczyk, A.. Universite Montpellier II; Francia
Fil: Zdziarski, A. A.. Nicolaus Copernicus Astronomical Center; Polonia
Fil: Zech, A.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
Fil: Zechlin, H. S.. Universitat Hamburg; Alemania
Materia: Gamma ray galaxies
Quasars
Infrared diffuse background
PKS 1510 (cuásar)
Nivel de accesibilidad: acceso abierto
Condiciones de uso: https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
Institución: Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador: oai:ri.conicet.gov.ar:11336/19300

Acceder

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spelling	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089Acero, F.Aharonian, F.Akhperjanian, A. G.Anton, G.Abramowski, A.Medina, Maria ClementinaTavernet, J.P.Terrier, R.Tluczykont, M.Trichar, C.Valerius, K.van Eldik, C.Vasileiadis, G.Venter, C.Viana, A.Vincent, P.Völk, H. J.Volpe, F.Vorobiov, S.Vorster, M.Wagner, S. J.Ward, M.White, R.Wierzcholska, A.Wouters, D.Zacharias, M.Zajczyk, A.Zdziarski, A. A.Zech, A.Zechlin, H. S.Gamma ray galaxiesQuasarsInfrared diffuse backgroundPKS 1510 (cuásar)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The 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.Fil: Acero, F.. Universite Montpellier II; FranciaFil: Aharonian, F.. Max Planck Institut für Kernphysik; AlemaniaFil: Akhperjanian, A. G.. Yerevan Physics Institute; ArmeniaFil: Anton, G.. Universität Erlangen Nürnberg; AlemaniaFil: Abramowski, A.. Universität Hamburg; AlemaniaFil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomia; ArgentinaFil: Tavernet, J.P.. University of Adelaide; AustraliaFil: Terrier, R.. Université Paris Diderot - Paris 7; FranciaFil: Tluczykont, M.. Universitat Hamburg; AlemaniaFil: Trichar, C.. Université de Savoie; FranciaFil: Valerius, K.. Universität Erlangen Nürnberg; AlemaniaFil: van Eldik, C.. Max Planck Institut für Kernphysik; AlemaniaFil: Vasileiadis, G.. Universite Montpellier II; FranciaFil: Venter, C.. North West University; SudáfricaFil: Viana, A.. Max Planck Institut für Kernphysik; AlemaniaFil: Vincent, P.. University of Adelaide; AustraliaFil: Völk, H. J.. Max Planck Institut für Kernphysik; AlemaniaFil: Volpe, F.. Max Planck Institut für Kernphysik; AlemaniaFil: Vorobiov, S.. Universite Montpellier II; FranciaFil: Vorster, M.. North West University; SudáfricaFil: Wagner, S. J.. Universität Heidelberg; AlemaniaFil: Ward, M.. University Of Durham; Reino UnidoFil: White, R.. University of Leicester; Reino UnidoFil: Wierzcholska, A.. Uniwersytet Jagiellonski; PoloniaFil: Wouters, D.. CEA Saclay; FranciaFil: Zacharias, M.. Ruhr-universität Bochum; AlemaniaFil: Zajczyk, A.. Universite Montpellier II; FranciaFil: Zdziarski, A. A.. Nicolaus Copernicus Astronomical Center; PoloniaFil: Zech, A.. Centre National de la Recherche Scientifique. Observatoire de Paris; FranciaFil: Zechlin, H. S.. Universitat Hamburg; AlemaniaEdp Sciences S A2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19300Acero, F.; Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Abramowski, A.; et al.; H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089; Edp Sciences S A; Astronomy And Astrophysics; 554; 6-2013; 107-1140004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2013A%26A...554A.107Hinfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2013/06/aa21135-13/aa21135-13.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201321135info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:25Zoai:ri.conicet.gov.ar:11336/19300instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:49:25.836CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
title	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
spellingShingle	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089 Acero, F. Gamma ray galaxies Quasars Infrared diffuse background PKS 1510 (cuásar)
title_short	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
title_full	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
title_fullStr	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
title_full_unstemmed	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
title_sort	H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089
dc.creator.none.fl_str_mv	Acero, F. Aharonian, F. Akhperjanian, A. G. Anton, G. Abramowski, A. Medina, Maria Clementina Tavernet, J.P. Terrier, R. Tluczykont, M. Trichar, C. Valerius, K. van Eldik, C. Vasileiadis, G. Venter, C. Viana, A. Vincent, P. Völk, H. J. Volpe, F. Vorobiov, S. Vorster, M. Wagner, S. J. Ward, M. White, R. Wierzcholska, A. Wouters, D. Zacharias, M. Zajczyk, A. Zdziarski, A. A. Zech, A. Zechlin, H. S.
author	Acero, F.
author_facet	Acero, F. Aharonian, F. Akhperjanian, A. G. Anton, G. Abramowski, A. Medina, Maria Clementina Tavernet, J.P. Terrier, R. Tluczykont, M. Trichar, C. Valerius, K. van Eldik, C. Vasileiadis, G. Venter, C. Viana, A. Vincent, P. Völk, H. J. Volpe, F. Vorobiov, S. Vorster, M. Wagner, S. J. Ward, M. White, R. Wierzcholska, A. Wouters, D. Zacharias, M. Zajczyk, A. Zdziarski, A. A. Zech, A. Zechlin, H. S.
author_role	author
author2	Aharonian, F. Akhperjanian, A. G. Anton, G. Abramowski, A. Medina, Maria Clementina Tavernet, J.P. Terrier, R. Tluczykont, M. Trichar, C. Valerius, K. van Eldik, C. Vasileiadis, G. Venter, C. Viana, A. Vincent, P. Völk, H. J. Volpe, F. Vorobiov, S. Vorster, M. Wagner, S. J. Ward, M. White, R. Wierzcholska, A. Wouters, D. Zacharias, M. Zajczyk, A. Zdziarski, A. A. Zech, A. Zechlin, H. S.
author2_role	author author author author author author author author author author author author author author author author author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	Gamma ray galaxies Quasars Infrared diffuse background PKS 1510 (cuásar)
topic	Gamma ray galaxies Quasars Infrared diffuse background PKS 1510 (cuásar)
purl_subject.fl_str_mv	https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv	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. Fil: Acero, F.. Universite Montpellier II; Francia Fil: Aharonian, F.. Max Planck Institut für Kernphysik; Alemania Fil: Akhperjanian, A. G.. Yerevan Physics Institute; Armenia Fil: Anton, G.. Universität Erlangen Nürnberg; Alemania Fil: Abramowski, A.. Universität Hamburg; Alemania Fil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomia; Argentina Fil: Tavernet, J.P.. University of Adelaide; Australia Fil: Terrier, R.. Université Paris Diderot - Paris 7; Francia Fil: Tluczykont, M.. Universitat Hamburg; Alemania Fil: Trichar, C.. Université de Savoie; Francia Fil: Valerius, K.. Universität Erlangen Nürnberg; Alemania Fil: van Eldik, C.. Max Planck Institut für Kernphysik; Alemania Fil: Vasileiadis, G.. Universite Montpellier II; Francia Fil: Venter, C.. North West University; Sudáfrica Fil: Viana, A.. Max Planck Institut für Kernphysik; Alemania Fil: Vincent, P.. University of Adelaide; Australia Fil: Völk, H. J.. Max Planck Institut für Kernphysik; Alemania Fil: Volpe, F.. Max Planck Institut für Kernphysik; Alemania Fil: Vorobiov, S.. Universite Montpellier II; Francia Fil: Vorster, M.. North West University; Sudáfrica Fil: Wagner, S. J.. Universität Heidelberg; Alemania Fil: Ward, M.. University Of Durham; Reino Unido Fil: White, R.. University of Leicester; Reino Unido Fil: Wierzcholska, A.. Uniwersytet Jagiellonski; Polonia Fil: Wouters, D.. CEA Saclay; Francia Fil: Zacharias, M.. Ruhr-universität Bochum; Alemania Fil: Zajczyk, A.. Universite Montpellier II; Francia Fil: Zdziarski, A. A.. Nicolaus Copernicus Astronomical Center; Polonia Fil: Zech, A.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia Fil: Zechlin, H. S.. Universitat Hamburg; Alemania
description	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.
publishDate	2013
dc.date.none.fl_str_mv	2013-06
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://hdl.handle.net/11336/19300 Acero, F.; Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Abramowski, A.; et al.; H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089; Edp Sciences S A; Astronomy And Astrophysics; 554; 6-2013; 107-114 0004-6361 CONICET Digital CONICET
url	http://hdl.handle.net/11336/19300
identifier_str_mv	Acero, F.; Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Abramowski, A.; et al.; H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089; Edp Sciences S A; Astronomy And Astrophysics; 554; 6-2013; 107-114 0004-6361 CONICET Digital CONICET
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2013A%26A...554A.107H info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2013/06/aa21135-13/aa21135-13.html info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201321135
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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dc.publisher.none.fl_str_mv	Edp Sciences S A
publisher.none.fl_str_mv	Edp Sciences S A
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repository.mail.fl_str_mv	dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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H.E.S.S. discovery of VHE γ-rays from the quasar PKS 1510-089

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