BAT AGN Spectroscopic Survey - XIII. The nature of the most luminous obscured AGN in the low-redshift universe

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dc.contributor.authorBar, Rudolf E.
dc.contributor.authorTrakhtenbrot, Benny
dc.contributor.authorOh, Kyuseok
dc.contributor.authorKoss, Michael J.
dc.contributor.authorWong, Ivy
dc.contributor.authorRicci, Claudio
dc.contributor.authorSchawinski, Kevin
dc.contributor.authorWeigel, Anna K.
dc.contributor.authorSartori, Lia F.
dc.contributor.authorIchikawa, Kohei
dc.contributor.authorSecrest, Nathan J.
dc.contributor.authorStern, Daniel
dc.contributor.authorPacucci, Fabio
dc.contributor.authorMushotzky, Richard
dc.contributor.authorPowell, Meredith C.
dc.contributor.authorRicci, Federica
dc.contributor.authorSani, Eleonora
dc.contributor.authorSmith, Krista L.
dc.contributor.authorHarrison, Fiona A.
dc.contributor.authorLamperti, Isabella
dc.contributor.authorUrry, C. Megan
dc.date.accessioned2025-01-23T21:10:43Z
dc.date.available2025-01-23T21:10:43Z
dc.date.issued2019
dc.description.abstractWe present a multiwavelength analysis of 28 of the most luminous low-redshift narrow-line, ultra-hard X-ray-selected active galactic nuclei (AGN) drawn from the 70-month Swift/BAT all-sky survey, with bolometric luminosities of log(L-bol/erg s(-1)) greater than or similar to 45.25. The broad goal of our study is to determine whether these objects have any distinctive properties, potentially setting them aside from lower luminosity obscured AGN in the local Universe. Our analysis relies on the first data release of the BAT AGN Spectroscopic Survey (BASS/DR1) and on dedicated observations with the VLT, Palomar, and Keck observatories. We find that the vast majority of our sources agree with commonly used AGN selection criteria which are based on emission line ratios and on mid-infrared colours. Our AGN are pre-dominantly hosted in massive galaxies (9.8 less than or similar to log (M-*/M-circle dot) less than or similar to 11.7); based on visual inspection of archival optical images, they appear to be mostly ellipticals. Otherwise, they do not have distinctive properties. Their radio luminosities, determined from publicly available survey data, show a large spread of almost four orders of magnitude- much broader than what is found for lower X-ray luminosity obscured AGN in BASS. Moreover, our sample shows no preferred combination of black hole masses (M-BH) and/or Eddington ratio (lambda(Edd)), covering 7.5 less than or similar to log (M-BH/M-circle dot) less than or similar to 10.3 and 0.01 less than or similar to lambda(Edd) less than or similar to 1. Based on the distribution of our sources in the lambda(Edd)-N-H plane, we conclude that our sample is consistent with a scenario where the amount of obscuring material along the line of sight is determined by radiation pressure exerted by the AGN on the dusty circumnuclear gas.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stz2309
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stz2309
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100854
dc.identifier.wosidWOS:000489288600010
dc.issue.numero3
dc.language.isoen
dc.pagina.final3092
dc.pagina.inicio3073
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectgalaxies: active
dc.subjectgalaxies: nuclei
dc.subjectgalaxies: Seyfert
dc.subjectradio continuum: galaxies
dc.titleBAT AGN Spectroscopic Survey - XIII. The nature of the most luminous obscured AGN in the low-redshift universe
dc.typeartículo
dc.volumen489
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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