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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/110142
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dc.contributor.authorAlonso-Herrero, A.-
dc.contributor.authorEsquej, Pilar-
dc.contributor.authorRoche, P. F.-
dc.contributor.authorHernán-Caballero, Antonio-
dc.contributor.authorGonzález-Martín, Omaira-
dc.contributor.authorAretxaga, Itziar-
dc.contributor.authorMason, R. E.-
dc.contributor.authorPackham, Christopher-
dc.contributor.authorLevenson, N.-
dc.contributor.authorRodríguez-Espinosa, J. M.-
dc.contributor.authorPereira-Santaella, Miguel-
dc.contributor.authorDíaz-Santos, T.-
dc.contributor.authorColina, Luis-
dc.contributor.authorTelesco, C.-
dc.contributor.authorRamos-Almeida, Cristina-
dc.date.accessioned2015-02-03T12:26:46Z-
dc.date.available2015-02-03T12:26:46Z-
dc.date.issued2014-
dc.identifierdoi: 10.1093/mnras/stu1293-
dc.identifiere-issn: 1365-2966-
dc.identifierissn: 0035-8711-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society 443(3): 2766-2782 (2014)-
dc.identifier.urihttp://hdl.handle.net/10261/110142-
dc.descriptionA. Alonso-Herrero et al.-
dc.description.abstractWe present Gran Telescopio CANARIAS CanariCam 8.7 μm imaging and 7.5-13 μm spectroscopy of six local systems known to host an active galactic nucleus (AGN) and have nuclear star formation. Our main goal is to investigate whether the molecules responsible for the 11.3 μm polycyclic aromatic hydrocarbon (PAH) feature are destroyed in the close vicinity of an AGN. We detect 11.3 μm PAH feature emission in the nuclear regions of the galaxies as well as extended PAH emission over a few hundred parsecs. The equivalent width (EW) of the feature shows a minimum at the nucleus but increases with increasing radial distances, reaching typical star-forming values a few hundred parsecs away from the nucleus. The reduced nuclear EWs are interpreted as due to increased dilution from the AGN continuum rather than destruction of the PAH molecules. We conclude that at least those molecules responsible for the 11.3 μm PAH feature survive in the nuclear environments as close as 10 pc from the AGN and for Seyfert-like AGN luminosities. We propose that material in the dusty tori, nuclear gas discs, and/or host galaxies of AGN is likely to provide the column densities necessary to protect the PAH molecules from the AGN radiation field. © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.-
dc.description.sponsorshipAA-H and AH-C are partly funded by the Universidad de Cantabria through the Augusto G. Linares programme. AA-H and AH-C acknowledge financial support from the Spanish Plan Nacional grant AYA2012-31447, AA-H and PE from grant AYA2009-05705-E, CRA from grant AYA2010-21887-C04.4 (Estallidos), PE from grant AYA2012-31277, and LC from grant AYA2012-32295. CRA acknowledges financial support from the Marie Curie Intra European Fellowship within the 7th European Community Framework Programme (PIEF-GA-2012-327934) and SFH from the Marie Curie International Incoming Fellowship within the 7th European Community Framework Programme (PIIFGA-2013-623804).-
dc.publisherOxford University Press-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/327934-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/623804-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.titleNuclear 11.3μm PAH emission in local active galactic nuclei-
dc.typeartículo-
dc.identifier.doi10.1093/mnras/stu1293-
dc.relation.publisherversionhttp://dx.doi.org/10.1093/mnras/stu1293-
dc.date.updated2015-02-03T12:26:47Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderEuropean Commission-
dc.contributor.funderUniversidad de Cantabria-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100006365es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeartículo-
item.cerifentitytypePublications-
item.grantfulltextopen-
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