Discovery of very high energy gamma-rays from the blazar S5 0716+714

The MAGIC Collaboration reports the detection of the blazar S5 0716+714 (z = 0.31 +/- 0.08) in very high energy gamma rays. The observations were performed in 2007 November and in 2008 April, and were triggered by the Kungliga Vetenskapliga Akademi telescope due to the high optical state of the obje...

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Detalles Bibliográficos
Autores: Antoranz Canales, Pedro, Barrio Uña, Juan Abel, Contreras González, José Luis, Fonseca González, María Victoria, Miranda Pantoja, José Miguel, Nieto Castaño, Daniel
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/43953
Acceso en línea:https://hdl.handle.net/20.500.14352/43953
Access Level:acceso abierto
Palabra clave:537
539.1
Active Galactic Nuclei
BL Lacertae Objects
LAC Objectcs
MAGIC Telescope
Proton Blazar
Model
Outburst
Sample
Performance
Evolution.
Electrónica (Física)
Electricidad
Física nuclear
2202.03 Electricidad
2207 Física Atómica y Nuclear
id ES_6d8f034ecec319dbd70edf5b3cd04f43
oai_identifier_str oai:docta.ucm.es:20.500.14352/43953
network_acronym_str ES
network_name_str España
repository_id_str
spelling Discovery of very high energy gamma-rays from the blazar S5 0716+714Antoranz Canales, PedroBarrio Uña, Juan AbelContreras González, José LuisFonseca González, María VictoriaMiranda Pantoja, José MiguelNieto Castaño, Daniel537539.1Active Galactic NucleiBL Lacertae ObjectsLAC ObjectcsMAGIC TelescopeProton BlazarModelOutburstSamplePerformanceEvolution.Electrónica (Física)ElectricidadFísica nuclear2202.03 Electricidad2207 Física Atómica y NuclearThe MAGIC Collaboration reports the detection of the blazar S5 0716+714 (z = 0.31 +/- 0.08) in very high energy gamma rays. The observations were performed in 2007 November and in 2008 April, and were triggered by the Kungliga Vetenskapliga Akademi telescope due to the high optical state of the object. An overall significance of the signal accounts to S = 5.8 sigma for 13.1 hr of data. Most of the signal (S = 6.9 sigma) comes from the 2008 April data sample during a higher optical state of the object suggesting a possible correlation between the Very High Energy gamma-ray and optical emissions. The differential energy spectrum of the 2008 data sample follows a power law with a photon index of G = 3.45 +/- 0.54(stat) +/- 0.2(syst), and the integral flux above 400 GeV is at the level of (7.5 +/- 2.2(stat) +/- 2.3(syst)) x 10(-12) cm(-2) s(-1), corresponding to a 9% Crab Nebula flux. Modeling of the broadband spectral energy distribution indicates that a structured jet model appears to be more promising in describing the available data than a simple one-zone synchrotron self-Compton model.IOP PublishingUniversidad Complutense de Madrid20092009-10-2020092009-10-20journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/43953reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/439532026-06-02T12:44:21Z
dc.title.none.fl_str_mv Discovery of very high energy gamma-rays from the blazar S5 0716+714
title Discovery of very high energy gamma-rays from the blazar S5 0716+714
spellingShingle Discovery of very high energy gamma-rays from the blazar S5 0716+714
Antoranz Canales, Pedro
537
539.1
Active Galactic Nuclei
BL Lacertae Objects
LAC Objectcs
MAGIC Telescope
Proton Blazar
Model
Outburst
Sample
Performance
Evolution.
Electrónica (Física)
Electricidad
Física nuclear
2202.03 Electricidad
2207 Física Atómica y Nuclear
title_short Discovery of very high energy gamma-rays from the blazar S5 0716+714
title_full Discovery of very high energy gamma-rays from the blazar S5 0716+714
title_fullStr Discovery of very high energy gamma-rays from the blazar S5 0716+714
title_full_unstemmed Discovery of very high energy gamma-rays from the blazar S5 0716+714
title_sort Discovery of very high energy gamma-rays from the blazar S5 0716+714
dc.creator.none.fl_str_mv Antoranz Canales, Pedro
Barrio Uña, Juan Abel
Contreras González, José Luis
Fonseca González, María Victoria
Miranda Pantoja, José Miguel
Nieto Castaño, Daniel
author Antoranz Canales, Pedro
author_facet Antoranz Canales, Pedro
Barrio Uña, Juan Abel
Contreras González, José Luis
Fonseca González, María Victoria
Miranda Pantoja, José Miguel
Nieto Castaño, Daniel
author_role author
author2 Barrio Uña, Juan Abel
Contreras González, José Luis
Fonseca González, María Victoria
Miranda Pantoja, José Miguel
Nieto Castaño, Daniel
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 537
539.1
Active Galactic Nuclei
BL Lacertae Objects
LAC Objectcs
MAGIC Telescope
Proton Blazar
Model
Outburst
Sample
Performance
Evolution.
Electrónica (Física)
Electricidad
Física nuclear
2202.03 Electricidad
2207 Física Atómica y Nuclear
topic 537
539.1
Active Galactic Nuclei
BL Lacertae Objects
LAC Objectcs
MAGIC Telescope
Proton Blazar
Model
Outburst
Sample
Performance
Evolution.
Electrónica (Física)
Electricidad
Física nuclear
2202.03 Electricidad
2207 Física Atómica y Nuclear
description The MAGIC Collaboration reports the detection of the blazar S5 0716+714 (z = 0.31 +/- 0.08) in very high energy gamma rays. The observations were performed in 2007 November and in 2008 April, and were triggered by the Kungliga Vetenskapliga Akademi telescope due to the high optical state of the object. An overall significance of the signal accounts to S = 5.8 sigma for 13.1 hr of data. Most of the signal (S = 6.9 sigma) comes from the 2008 April data sample during a higher optical state of the object suggesting a possible correlation between the Very High Energy gamma-ray and optical emissions. The differential energy spectrum of the 2008 data sample follows a power law with a photon index of G = 3.45 +/- 0.54(stat) +/- 0.2(syst), and the integral flux above 400 GeV is at the level of (7.5 +/- 2.2(stat) +/- 2.3(syst)) x 10(-12) cm(-2) s(-1), corresponding to a 9% Crab Nebula flux. Modeling of the broadband spectral energy distribution indicates that a structured jet model appears to be more promising in describing the available data than a simple one-zone synchrotron self-Compton model.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-10-20
2009
2009-10-20
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/43953
url https://hdl.handle.net/20.500.14352/43953
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410361224986624
score 15,300724

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