BASS XLIV. Morphological preferences of local hard X-ray selected AGNs

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dc.article.numberA111
dc.catalogadorpva
dc.contributor.authorParra Tello, Miguel Agustín
dc.contributor.authorBauer, Franz E.
dc.contributor.authorCicco, Demetra de
dc.contributor.authorDoll, Goran
dc.contributor.authorKoss, Michael
dc.contributor.authorTreister, Ezequiel
dc.contributor.authorFinlez, Carolina
dc.contributor.authorTroncoso Balbiano, Marco Javier
dc.contributor.authorAuge, Connor
dc.contributor.authorMoral Castro, Ignacio del
dc.contributor.authorChung, Aeree
dc.contributor.authorGupta, Kriti K.
dc.contributor.authorKim, Jeein
dc.contributor.authorOh, Kyuseok
dc.contributor.authorRicci, Claudio
dc.contributor.authorRicci, Federica
dc.contributor.authorRojas, Alejandra
dc.contributor.authorCaglar, Turgay
dc.contributor.authorHarrison, Fiona
dc.contributor.authorPowell, Meredith C.
dc.contributor.authorStern, Daniel
dc.contributor.authorTrakhtenbrot, Benny
dc.contributor.authorUrry, C. Megan
dc.date.accessioned2025-08-27T20:43:44Z
dc.date.available2025-08-27T20:43:44Z
dc.date.issued2025
dc.description.abstractWe present detailed morphological classifications for the hosts of 1189 hard X-ray selected (14–195 keV) active galactic nuclei (AGNs) from the Swift-BAT 105-month catalog as part of the BAT AGN Spectroscopic Survey (BASS). BASS provides a powerful all-sky census of nearby AGNs, minimizing obscuration biases and providing a robust dataset for studying AGN-host galaxy connections. Classifications are based on a volunteer-based visual inspection workflow on the Zooniverse platform, adapted from the Galaxy Zoo DECaLS (GZD) project. Dual-contrast grz color composite images, generated from public surveys (e.g., NOAO Legacy Survey, Pan-STARRS, SDSS) and dedicated observations enabled key morphological features to be identified. Our analysis reveals that, with respect to a control sample of inactive galaxies, BASS AGN hosts show a deficiency of smooth elliptical galaxies (∼70%) and spiral galaxies with prominent arms (∼80%), while displaying an excess of mergers or disturbed systems (∼400%), and disk galaxies without a spiral structure (∼300%). These trends are found after controlling for redshift and i-band magnitude, which suggests a preference for AGN activity in gas-rich, dynamically disturbed environments or transitional disk systems. We also find a higher bar fraction among AGN hosts than in a control sample (∼50% vs. ∼30%). We further explore the relationships between AGN properties (e.g., X-ray luminosity, black hole mass, and Eddington ratio) and host morphology, and find that high-luminosity and high-accretion AGNs preferentially reside in smooth or point-like hosts. At the same time, lower-luminosity AGNs are more common in disk galaxies. These results underscore the importance of morphological studies in understanding the fueling and feedback mechanisms that drive AGN activity and their role in galaxy evolution. Our dataset provides a valuable benchmark for future multiwavelength surveys (e.g. LSST, Roman, and Euclid) and automated morphological classification efforts.
dc.fechaingreso.objetodigital2025-08-27
dc.format.extent19 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1051/0004-6361/202554990
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202554990
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/105325
dc.information.autorucInstituto de Astrofísica; Parra Tello, Miguel Agustín; S/I; 1044953
dc.information.autorucInstituto de Astrofísica; Treister, Ezequiel; 0000-0001-7568-6412; 1031846
dc.information.autorucInstituto de Astrofísica; Finlez, Carolina; S/I; 1161357
dc.information.autorucInstituto de Astrofísica; Troncoso Balbiano, Marco Javier; S/I; 1064511
dc.information.autorucInstituto de Astrofísica; Moral Castro, Ignacio del; S/I; 1338260
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherEDP Sciences
dc.revistaAstronomy & Astrophysics
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectGalaxies: active
dc.subjectGalaxies: evolution
dc.subjectGalaxies: nuclei
dc.subject.ddc520
dc.subject.deweyAstronomíaes_ES
dc.subject.ods09 Industry, innovation and infrastructure
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleBASS XLIV. Morphological preferences of local hard X-ray selected AGNs
dc.typeartículo
dc.volumen700
sipa.codpersvinculados1044953
sipa.codpersvinculados1031846
sipa.codpersvinculados1161357
sipa.codpersvinculados1064511
sipa.codpersvinculados1338260
sipa.trazabilidadORCID;2025-08-22
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