First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310
Context. The extragalactic very-high-energy gamma-ray sky is rich in blazars. These are jetted active galactic nuclei that are viewed at a small angle to the line-of-sight. Only a handful of objects viewed at a larger angle are so far known to emit above 100 GeV. Multi-wavelength studies of such obj...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/18360 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/18360 |
| Access Level: | acceso abierto |
| Palabra clave: | 539.1 Gamma rays: galaxies Galaxies: active Individual (IC 310) Electricidad Electrónica (Física) Física nuclear 2202.03 Electricidad 2207 Física Atómica y Nuclear |
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First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310Barrio Uña, Juan AbelBonnefoy, Simon Francois AlbertContreras González, José LuisFonseca González, María VictoriaLópez Moya, MarcosNievas Rosillo, Mireia539.1Gamma rays: galaxiesGalaxies: activeIndividual (IC 310)ElectricidadElectrónica (Física)Física nuclear2202.03 Electricidad2207 Física Atómica y NuclearContext. The extragalactic very-high-energy gamma-ray sky is rich in blazars. These are jetted active galactic nuclei that are viewed at a small angle to the line-of-sight. Only a handful of objects viewed at a larger angle are so far known to emit above 100 GeV. Multi-wavelength studies of such objects up to the highest energies provide new insights into the particle and radiation processes of active galactic nuclei. Aims. We aim to report the results from the first multi-wavelength campaign observing the TeV detected nucleus of the active galaxy IC 310, whose jet is observed at a moderate viewing angle of 10 degrees-20 degrees. Methods. The multi-instrument campaign was conducted between 2012 November and 2013 January, and involved observations with MAGIC, Fermi, INTEGRAL, Swift, OVRO, MOJAVE and EVN. These observations were complemented with archival data from the AllWISE and 2MASS catalogs. A one-zone synchrotron self-Compton model was applied to describe the broadband spectral energy distribution. Results. IC 310 showed an extraordinary TeV flare at the beginning of the campaign, followed by a low, but still detectable TeV flux. Compared to previous measurements in this energy range, the spectral shape was found to be steeper during the low emission state. Simultaneous observations in the soft X-ray band showed an enhanced energy flux state and a harder-when-brighter spectral shape behavior. No strong correlated flux variability was found in other frequency regimes. The broad-band spectral energy distribution obtained from these observations supports the hypothesis of a double-hump structure. Conclusions. The harder-when-brighter trend in the X-ray and VHE emission, observed for the first time during this campaign, is consistent with the behavior expected from a synchrotron self-Compton scenario. The contemporaneous broadband spectral energy distribution is well described with a one-zone synchrotron self-Compton model using parameters that are comparable to those found for other gamma-ray-emitting misaligned blazars.EDP ScienciesUniversidad Complutense de Madrid20172017-07-0120172017-07-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/18360reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/183602026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| title |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| spellingShingle |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 Barrio Uña, Juan Abel 539.1 Gamma rays: galaxies Galaxies: active Individual (IC 310) Electricidad Electrónica (Física) Física nuclear 2202.03 Electricidad 2207 Física Atómica y Nuclear |
| title_short |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| title_full |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| title_fullStr |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| title_full_unstemmed |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| title_sort |
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310 |
| dc.creator.none.fl_str_mv |
Barrio Uña, Juan Abel Bonnefoy, Simon Francois Albert Contreras González, José Luis Fonseca González, María Victoria López Moya, Marcos Nievas Rosillo, Mireia |
| author |
Barrio Uña, Juan Abel |
| author_facet |
Barrio Uña, Juan Abel Bonnefoy, Simon Francois Albert Contreras González, José Luis Fonseca González, María Victoria López Moya, Marcos Nievas Rosillo, Mireia |
| author_role |
author |
| author2 |
Bonnefoy, Simon Francois Albert Contreras González, José Luis Fonseca González, María Victoria López Moya, Marcos Nievas Rosillo, Mireia |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
539.1 Gamma rays: galaxies Galaxies: active Individual (IC 310) Electricidad Electrónica (Física) Física nuclear 2202.03 Electricidad 2207 Física Atómica y Nuclear |
| topic |
539.1 Gamma rays: galaxies Galaxies: active Individual (IC 310) Electricidad Electrónica (Física) Física nuclear 2202.03 Electricidad 2207 Física Atómica y Nuclear |
| description |
Context. The extragalactic very-high-energy gamma-ray sky is rich in blazars. These are jetted active galactic nuclei that are viewed at a small angle to the line-of-sight. Only a handful of objects viewed at a larger angle are so far known to emit above 100 GeV. Multi-wavelength studies of such objects up to the highest energies provide new insights into the particle and radiation processes of active galactic nuclei. Aims. We aim to report the results from the first multi-wavelength campaign observing the TeV detected nucleus of the active galaxy IC 310, whose jet is observed at a moderate viewing angle of 10 degrees-20 degrees. Methods. The multi-instrument campaign was conducted between 2012 November and 2013 January, and involved observations with MAGIC, Fermi, INTEGRAL, Swift, OVRO, MOJAVE and EVN. These observations were complemented with archival data from the AllWISE and 2MASS catalogs. A one-zone synchrotron self-Compton model was applied to describe the broadband spectral energy distribution. Results. IC 310 showed an extraordinary TeV flare at the beginning of the campaign, followed by a low, but still detectable TeV flux. Compared to previous measurements in this energy range, the spectral shape was found to be steeper during the low emission state. Simultaneous observations in the soft X-ray band showed an enhanced energy flux state and a harder-when-brighter spectral shape behavior. No strong correlated flux variability was found in other frequency regimes. The broad-band spectral energy distribution obtained from these observations supports the hypothesis of a double-hump structure. Conclusions. The harder-when-brighter trend in the X-ray and VHE emission, observed for the first time during this campaign, is consistent with the behavior expected from a synchrotron self-Compton scenario. The contemporaneous broadband spectral energy distribution is well described with a one-zone synchrotron self-Compton model using parameters that are comparable to those found for other gamma-ray-emitting misaligned blazars. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017 2017-07-01 2017 2017-07-01 |
| 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/20.500.14352/18360 |
| url |
https://hdl.handle.net/20.500.14352/18360 |
| 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 |
EDP Sciencies |
| publisher.none.fl_str_mv |
EDP Sciencies |
| 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 |
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1869417368863637504 |
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15,300719 |