Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.

Autores: Abramowski, A.; Acero, F.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A. G.; Medina, Maria Clementina; Valerius, K.; van Eldik, C.; Vasileiadis, G.; Venter, C.; Viana, A.; Vincent, P.; Völk, H. J.; Volpe, F.; Vorster, M.; Wagner, S. J.; Wagner, P.; Ward, M.; Weidinger, M.; Weitzel, Q.; White, R.; Wierzcholska, A.; Willmann, P.; Wörnlein, 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 active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV 100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 h. Gamma rays above 200 GeV are detected at a significance of 9.4σ. A hint of variability at the 2.5σ level is found. An integral flux I(E > 200 GeV) = (3.3 ± 1.1stat ± 0.7syst) × 10-12 ph cm-2 s-1 and a photon index Γ = 4.6 ± 0.7stat ± 0.2syst are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources observed at TeV energies, the very high energy emission from PKS 0301−243 is attenuated by the extragalactic background light (EBL) and the measured spectrum is used to derive an upper limit on the opacity of the EBL.
Fil: Abramowski, A.. Universitat Hamburg; Alemania
Fil: Acero, F.. Universite Montpellier II; Francia
Fil: Aharonian, F.. Max Planck Institut für Kernphysik; Alemania
Fil: Benkhali, F. Ait. Max Planck Institut für Kernphysik; Alemania
Fil: Akhperjanian, A. G.. National Academy of Sciences of the Republic of Armenia; Armenia
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: Valerius, K.. Universität Erlangen Nürnberg; Alemania
Fil: van Eldik, C.. Universität Erlangen Nürnberg; 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.. Université Paris Diderot - Paris 7; Francia
Fil: Völk, H. J.. Max Planck Institut für Kernphysik; Alemania
Fil: Volpe, F.. Max Planck Institut für Kernphysik; Alemania
Fil: Vorster, M.. North West University; Sudáfrica
Fil: Wagner, S. J.. Universität Heidelberg; Alemania
Fil: Wagner, P.. Humboldt Universität zu Berlin; Alemania
Fil: Ward, M.. University Of Durham; Reino Unido
Fil: Weidinger, M.. Ruhr-universität Bochum; Alemania
Fil: Weitzel, Q.. Max Planck Institut für Kernphysik; Alemania
Fil: White, R.. The University of Leicester; Reino Unido
Fil: Wierzcholska, A.. Uniwersytet Jagiellonski; Polonia
Fil: Willmann, P.. Universität Erlangen Nürnberg; Alemania
Fil: Wörnlein, A.. Universität Erlangen Nürnberg; Alemania
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.. Université Paris Diderot - Paris 7; Francia
Fil: Zechlin, H. S.. Universitat Hamburg; Alemania
Materia: Active galaxies
BL Lacertae objects
Gamma ray galaxies
Radiation mechanisms
PKS 0301-243 (objeto BL Lacertae)
Non thermal mechanisms
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:11336/22942

Acceder

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network_acronym_str	CONICETDig
repository_id_str	3498
network_name_str	CONICET Digital (CONICET)
spelling	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.Abramowski, A.Acero, F.Aharonian, F.Benkhali, F. AitAkhperjanian, A. G.Medina, Maria ClementinaValerius, K.van Eldik, C.Vasileiadis, G.Venter, C.Viana, A.Vincent, P.Völk, H. J.Volpe, F.Vorster, M.Wagner, S. J.Wagner, P.Ward, M.Weidinger, M.Weitzel, Q.White, R.Wierzcholska, A.Willmann, P.Wörnlein, A.Wouters, D.Zacharias, M.Zajczyk, A.Zdziarski, A. A.Zech, A.Zechlin, H. S.Active galaxiesBL Lacertae objectsGamma ray galaxiesRadiation mechanismsPKS 0301-243 (objeto BL Lacertae)Non thermal mechanismshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV <E < 100 GeV) by Fermi/LAT. This paper reports on the discovery of PKS 0301−243 at very high energies (E > 100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 h. Gamma rays above 200 GeV are detected at a significance of 9.4σ. A hint of variability at the 2.5σ level is found. An integral flux I(E > 200 GeV) = (3.3 ± 1.1stat ± 0.7syst) × 10-12 ph cm-2 s-1 and a photon index Γ = 4.6 ± 0.7stat ± 0.2syst are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources observed at TeV energies, the very high energy emission from PKS 0301−243 is attenuated by the extragalactic background light (EBL) and the measured spectrum is used to derive an upper limit on the opacity of the EBL.Fil: Abramowski, A.. Universitat Hamburg; AlemaniaFil: Acero, F.. Universite Montpellier II; FranciaFil: Aharonian, F.. Max Planck Institut für Kernphysik; AlemaniaFil: Benkhali, F. Ait. Max Planck Institut für Kernphysik; AlemaniaFil: Akhperjanian, A. G.. National Academy of Sciences of the Republic of Armenia; ArmeniaFil: 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: Valerius, K.. Universität Erlangen Nürnberg; AlemaniaFil: van Eldik, C.. Universität Erlangen Nürnberg; AlemaniaFil: Vasileiadis, G.. Universite Montpellier II; FranciaFil: Venter, C.. North West University; SudáfricaFil: Viana, A.. Max Planck Institut für Kernphysik; AlemaniaFil: Vincent, P.. Université Paris Diderot - Paris 7; FranciaFil: Völk, H. J.. Max Planck Institut für Kernphysik; AlemaniaFil: Volpe, F.. Max Planck Institut für Kernphysik; AlemaniaFil: Vorster, M.. North West University; SudáfricaFil: Wagner, S. J.. Universität Heidelberg; AlemaniaFil: Wagner, P.. Humboldt Universität zu Berlin; AlemaniaFil: Ward, M.. University Of Durham; Reino UnidoFil: Weidinger, M.. Ruhr-universität Bochum; AlemaniaFil: Weitzel, Q.. Max Planck Institut für Kernphysik; AlemaniaFil: White, R.. The University of Leicester; Reino UnidoFil: Wierzcholska, A.. Uniwersytet Jagiellonski; PoloniaFil: Willmann, P.. Universität Erlangen Nürnberg; AlemaniaFil: Wörnlein, A.. Universität Erlangen Nürnberg; AlemaniaFil: 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.. Université Paris Diderot - Paris 7; FranciaFil: Zechlin, H. S.. Universitat Hamburg; AlemaniaEdp Sciences S A2013-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22942Abramowski, A.; Acero, F.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A. G.; et al.; Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.; Edp Sciences S A; Astronomy And Astrophysics; 559; 11-2013; 136-1470004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201321639info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2013/11/aa21639-13/aa21639-13.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:09Zoai:ri.conicet.gov.ar:11336/22942instacron: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 10:46:09.3CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
title	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
spellingShingle	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S. Abramowski, A. Active galaxies BL Lacertae objects Gamma ray galaxies Radiation mechanisms PKS 0301-243 (objeto BL Lacertae) Non thermal mechanisms
title_short	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
title_full	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
title_fullStr	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
title_full_unstemmed	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
title_sort	Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.
dc.creator.none.fl_str_mv	Abramowski, A. Acero, F. Aharonian, F. Benkhali, F. Ait Akhperjanian, A. G. Medina, Maria Clementina Valerius, K. van Eldik, C. Vasileiadis, G. Venter, C. Viana, A. Vincent, P. Völk, H. J. Volpe, F. Vorster, M. Wagner, S. J. Wagner, P. Ward, M. Weidinger, M. Weitzel, Q. White, R. Wierzcholska, A. Willmann, P. Wörnlein, A. Wouters, D. Zacharias, M. Zajczyk, A. Zdziarski, A. A. Zech, A. Zechlin, H. S.
author	Abramowski, A.
author_facet	Abramowski, A. Acero, F. Aharonian, F. Benkhali, F. Ait Akhperjanian, A. G. Medina, Maria Clementina Valerius, K. van Eldik, C. Vasileiadis, G. Venter, C. Viana, A. Vincent, P. Völk, H. J. Volpe, F. Vorster, M. Wagner, S. J. Wagner, P. Ward, M. Weidinger, M. Weitzel, Q. White, R. Wierzcholska, A. Willmann, P. Wörnlein, A. Wouters, D. Zacharias, M. Zajczyk, A. Zdziarski, A. A. Zech, A. Zechlin, H. S.
author_role	author
author2	Acero, F. Aharonian, F. Benkhali, F. Ait Akhperjanian, A. G. Medina, Maria Clementina Valerius, K. van Eldik, C. Vasileiadis, G. Venter, C. Viana, A. Vincent, P. Völk, H. J. Volpe, F. Vorster, M. Wagner, S. J. Wagner, P. Ward, M. Weidinger, M. Weitzel, Q. White, R. Wierzcholska, A. Willmann, P. Wörnlein, 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	Active galaxies BL Lacertae objects Gamma ray galaxies Radiation mechanisms PKS 0301-243 (objeto BL Lacertae) Non thermal mechanisms
topic	Active galaxies BL Lacertae objects Gamma ray galaxies Radiation mechanisms PKS 0301-243 (objeto BL Lacertae) Non thermal mechanisms
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 active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV <E < 100 GeV) by Fermi/LAT. This paper reports on the discovery of PKS 0301−243 at very high energies (E > 100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 h. Gamma rays above 200 GeV are detected at a significance of 9.4σ. A hint of variability at the 2.5σ level is found. An integral flux I(E > 200 GeV) = (3.3 ± 1.1stat ± 0.7syst) × 10-12 ph cm-2 s-1 and a photon index Γ = 4.6 ± 0.7stat ± 0.2syst are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources observed at TeV energies, the very high energy emission from PKS 0301−243 is attenuated by the extragalactic background light (EBL) and the measured spectrum is used to derive an upper limit on the opacity of the EBL. Fil: Abramowski, A.. Universitat Hamburg; Alemania Fil: Acero, F.. Universite Montpellier II; Francia Fil: Aharonian, F.. Max Planck Institut für Kernphysik; Alemania Fil: Benkhali, F. Ait. Max Planck Institut für Kernphysik; Alemania Fil: Akhperjanian, A. G.. National Academy of Sciences of the Republic of Armenia; Armenia 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: Valerius, K.. Universität Erlangen Nürnberg; Alemania Fil: van Eldik, C.. Universität Erlangen Nürnberg; 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.. Université Paris Diderot - Paris 7; Francia Fil: Völk, H. J.. Max Planck Institut für Kernphysik; Alemania Fil: Volpe, F.. Max Planck Institut für Kernphysik; Alemania Fil: Vorster, M.. North West University; Sudáfrica Fil: Wagner, S. J.. Universität Heidelberg; Alemania Fil: Wagner, P.. Humboldt Universität zu Berlin; Alemania Fil: Ward, M.. University Of Durham; Reino Unido Fil: Weidinger, M.. Ruhr-universität Bochum; Alemania Fil: Weitzel, Q.. Max Planck Institut für Kernphysik; Alemania Fil: White, R.. The University of Leicester; Reino Unido Fil: Wierzcholska, A.. Uniwersytet Jagiellonski; Polonia Fil: Willmann, P.. Universität Erlangen Nürnberg; Alemania Fil: Wörnlein, A.. Universität Erlangen Nürnberg; Alemania 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.. Université Paris Diderot - Paris 7; Francia Fil: Zechlin, H. S.. Universitat Hamburg; Alemania
description	The active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV <E < 100 GeV) by Fermi/LAT. This paper reports on the discovery of PKS 0301−243 at very high energies (E > 100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 h. Gamma rays above 200 GeV are detected at a significance of 9.4σ. A hint of variability at the 2.5σ level is found. An integral flux I(E > 200 GeV) = (3.3 ± 1.1stat ± 0.7syst) × 10-12 ph cm-2 s-1 and a photon index Γ = 4.6 ± 0.7stat ± 0.2syst are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources observed at TeV energies, the very high energy emission from PKS 0301−243 is attenuated by the extragalactic background light (EBL) and the measured spectrum is used to derive an upper limit on the opacity of the EBL.
publishDate	2013
dc.date.none.fl_str_mv	2013-11
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/11336/22942 Abramowski, A.; Acero, F.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A. G.; et al.; Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.; Edp Sciences S A; Astronomy And Astrophysics; 559; 11-2013; 136-147 0004-6361 CONICET Digital CONICET
url	http://hdl.handle.net/11336/22942
identifier_str_mv	Abramowski, A.; Acero, F.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A. G.; et al.; Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.; Edp Sciences S A; Astronomy And Astrophysics; 559; 11-2013; 136-147 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/doi/10.1051/0004-6361/201321639 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2013/11/aa21639-13/aa21639-13.html
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv	openAccess
rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv	application/pdf application/pdf
dc.publisher.none.fl_str_mv	Edp Sciences S A
publisher.none.fl_str_mv	Edp Sciences S A
dc.source.none.fl_str_mv	reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str	CONICET Digital (CONICET)
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instname_str	Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv	CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv	dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score	13.070432

Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301-243 with H.E.S.S.

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