Faint γ -ray sources at low redshift: The radio galaxy IC 1531

We present amultiwavelength study of IC 1531 (z=0.02564), an extragalactic radio source associated with the γ -ray object 3FGL J0009.9-3206 and classified as a blazar of uncertain type in the Third Fermi-Large Area Telescope AGN catalog (3LAC). A core-jet structure, visible in radio and X-rays, is e...

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Detalles Bibliográficos
Autores: Bassi, T., Migliori, G., Grandi, P., Vignali, Cristian, Pérez-Torres, Miguel A., Baldi, Ranieri D., Torresi, E., Siemiginowska, A., Stanghellini, C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/206940
Acceso en línea:http://hdl.handle.net/10261/206940
Access Level:acceso abierto
Palabra clave:Galaxies: active
galaxies: individual: ic 1531
Galaxies: jets
gamma-rays: galaxies
radio continuum: galaxies
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spelling Faint γ -ray sources at low redshift: The radio galaxy IC 1531Bassi, T.Migliori, G.Grandi, P.Vignali, CristianPérez-Torres, Miguel A.Baldi, Ranieri D.Torresi, E.Siemiginowska, A.Stanghellini, C.Galaxies: activegalaxies: individual: ic 1531Galaxies: jetsgamma-rays: galaxiesradio continuum: galaxiesWe present amultiwavelength study of IC 1531 (z=0.02564), an extragalactic radio source associated with the γ -ray object 3FGL J0009.9-3206 and classified as a blazar of uncertain type in the Third Fermi-Large Area Telescope AGN catalog (3LAC). A core-jet structure, visible in radio and X-rays, is enclosed within a ~220 kpc wide radio structure. The morphology and spectral characteristics of the kiloparsec jet in radio and X-rays are typical of Fanaroff-Riley type I galaxies. The analysis of the radio data and optical spectrum and different diagnostic methods based on the optical, infrared, and γ -ray luminosities also support a classification as a low-power RG seen at moderate angles (θ = 10°-20°). In the framework of leptonic models, the high-energy peak of the non-thermal nuclear spectral energy distribution can be explained in terms of synchrotron-self-Compton emission from a jet seen at θ ~ 15°. Similarly to other misaligned AGNs detected by Fermi, the required bulk motion is lower (Γ = 4) than the values inferred in BL Lac objects, confirming that, because of the de-boosting of emission from the highly relativistic blazar region, these nearby systems are valuable targets to probe the existence of multiple sites of production of the most energetic emission in the jets.© 2018 The Author(s).The research leading to these results has received funding from the European Union's Horizon 2020 Programme under AHEAD project (grant agreement n. 654215). Partial support to this work was provided by the NASA grant AR4-15009X. GM acknowledges the financial support from the UnivEarthS Labex program of Sorbonne Paris Cite (ANR10LABX0023 and ANR11IDEX000502). We thank the anonymous referee for comments and suggestions that helped us to improve the manuscript. TB acknowledges financial contribution from the agreement ASI-INAF n. 2017-14-H.0. MAPT acknowledges support from the Spanish MINECO through grants AYA2012-38491-C02-02 and AYA2015-63939-C2-1-P. AS was supported by NASA contract NAS8-03060 (Chandra X-ray Center). ET acknowledges financial support from ASI-INAF grant 2015-023-R.O. We acknowledge financial support from PRIN INAF 2016. This work has used data supplied by the UK Swift Science Data Centre at the University of Leicester and archival data from the VLA. The NRAO a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.Peer reviewedOxford University PressMinisterio de Economía y Competitividad (España)European CommissionNASASorbonne UniversitéAgenzia Spaziale ItalianaIstituto Nazionale di AstrofisicaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020182020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/206940reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/654215info:eu-repo/grantAgreement/MINECO//AYA2012-38491-C02-02info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2015-63939-C2-1-Phttp://dx.doi.org/10.1093/MNRAS/STY2622Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2069402026-05-22T06:33:51Z
dc.title.none.fl_str_mv Faint γ -ray sources at low redshift: The radio galaxy IC 1531
title Faint γ -ray sources at low redshift: The radio galaxy IC 1531
spellingShingle Faint γ -ray sources at low redshift: The radio galaxy IC 1531
Bassi, T.
Galaxies: active
galaxies: individual: ic 1531
Galaxies: jets
gamma-rays: galaxies
radio continuum: galaxies
title_short Faint γ -ray sources at low redshift: The radio galaxy IC 1531
title_full Faint γ -ray sources at low redshift: The radio galaxy IC 1531
title_fullStr Faint γ -ray sources at low redshift: The radio galaxy IC 1531
title_full_unstemmed Faint γ -ray sources at low redshift: The radio galaxy IC 1531
title_sort Faint γ -ray sources at low redshift: The radio galaxy IC 1531
dc.creator.none.fl_str_mv Bassi, T.
Migliori, G.
Grandi, P.
Vignali, Cristian
Pérez-Torres, Miguel A.
Baldi, Ranieri D.
Torresi, E.
Siemiginowska, A.
Stanghellini, C.
author Bassi, T.
author_facet Bassi, T.
Migliori, G.
Grandi, P.
Vignali, Cristian
Pérez-Torres, Miguel A.
Baldi, Ranieri D.
Torresi, E.
Siemiginowska, A.
Stanghellini, C.
author_role author
author2 Migliori, G.
Grandi, P.
Vignali, Cristian
Pérez-Torres, Miguel A.
Baldi, Ranieri D.
Torresi, E.
Siemiginowska, A.
Stanghellini, C.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
NASA
Sorbonne Université
Agenzia Spaziale Italiana
Istituto Nazionale di Astrofisica
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Galaxies: active
galaxies: individual: ic 1531
Galaxies: jets
gamma-rays: galaxies
radio continuum: galaxies
topic Galaxies: active
galaxies: individual: ic 1531
Galaxies: jets
gamma-rays: galaxies
radio continuum: galaxies
description We present amultiwavelength study of IC 1531 (z=0.02564), an extragalactic radio source associated with the γ -ray object 3FGL J0009.9-3206 and classified as a blazar of uncertain type in the Third Fermi-Large Area Telescope AGN catalog (3LAC). A core-jet structure, visible in radio and X-rays, is enclosed within a ~220 kpc wide radio structure. The morphology and spectral characteristics of the kiloparsec jet in radio and X-rays are typical of Fanaroff-Riley type I galaxies. The analysis of the radio data and optical spectrum and different diagnostic methods based on the optical, infrared, and γ -ray luminosities also support a classification as a low-power RG seen at moderate angles (θ = 10°-20°). In the framework of leptonic models, the high-energy peak of the non-thermal nuclear spectral energy distribution can be explained in terms of synchrotron-self-Compton emission from a jet seen at θ ~ 15°. Similarly to other misaligned AGNs detected by Fermi, the required bulk motion is lower (Γ = 4) than the values inferred in BL Lac objects, confirming that, because of the de-boosting of emission from the highly relativistic blazar region, these nearby systems are valuable targets to probe the existence of multiple sites of production of the most energetic emission in the jets.© 2018 The Author(s).
publishDate 2018
dc.date.none.fl_str_mv 2018
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/206940
url http://hdl.handle.net/10261/206940
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/654215
info:eu-repo/grantAgreement/MINECO//AYA2012-38491-C02-02
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2015-63939-C2-1-P
http://dx.doi.org/10.1093/MNRAS/STY2622
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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