NUCLEAR ACTIVITY IS MORE PREVALENT IN STAR-FORMING GALAXIES

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dc.contributor.authorRosario, D. J.
dc.contributor.authorSantini, P.
dc.contributor.authorLutz, D.
dc.contributor.authorNetzer, H.
dc.contributor.authorBauer, F. E.
dc.contributor.authorBerta, S.
dc.contributor.authorMagnelli, B.
dc.contributor.authorPopesso, P.
dc.contributor.authorAlexander, D. M.
dc.contributor.authorBrandt, W. N.
dc.contributor.authorGenzel, R.
dc.contributor.authorMaiolino, R.
dc.contributor.authorMullaney, J. R.
dc.contributor.authorNordon, R.
dc.contributor.authorSaintonge, A.
dc.contributor.authorTacconi, L.
dc.contributor.authorWuyts, S.
dc.date.accessioned2025-01-24T00:09:55Z
dc.date.available2025-01-24T00:09:55Z
dc.date.issued2013
dc.description.abstractWe explore the question of whether low and moderate luminosity active galactic nuclei (AGNs) are preferentially found in galaxies that are undergoing a transition from active star formation (SF) to quiescence. This notion has been suggested by studies of the UV-optical colors of AGN hosts, which find them to be common among galaxies in the so-called Green Valley, a region of galaxy color space believed to be composed mostly of galaxies undergoing SF quenching. Combining the deepest current X-ray and Herschel/PACS far-infrared (FIR) observations of the two Chandra Deep Fields with redshifts, stellar masses, and rest-frame photometry derived from the extensive and uniform multi-wavelength data in these fields, we compare the rest-frame U - V color distributions and star formation rate distributions of AGNs and carefully constructed samples of inactive control galaxies. The UV-to-optical colors of AGNs are consistent with equally massive inactive galaxies at redshifts out to z similar to 2, but we show that such colors are poor tracers of SF. While the FIR distributions of both star-forming AGNs and star-forming inactive galaxies are statistically similar, we show that AGNs are preferentially found in star-forming host galaxies, or, in other words, AGNs are less likely to be found in weakly star-forming or quenched galaxies. We postulate that, among X-ray-selected AGNs of low and moderate accretion luminosities, the supply of cold gas primarily determines the accretion rate distribution of the nuclear black holes.
dc.fuente.origenWOS
dc.identifier.doi10.1088/0004-637X/771/1/63
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.1088/0004-637X/771/1/63
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102005
dc.identifier.wosidWOS:000321274200063
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.subjectgalaxies: active
dc.subjectgalaxies: evolution
dc.subjectgalaxies: star formation
dc.subjectinfrared: galaxies
dc.subjectsurveys
dc.subjectX-rays: galaxies
dc.titleNUCLEAR ACTIVITY IS MORE PREVALENT IN STAR-FORMING GALAXIES
dc.typeartículo
dc.volumen771
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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