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dc.contributor.authorGupta, Nayantarapt_BR
dc.contributor.authorSantiago, Basilio Xavierpt_BR
dc.contributor.authorZenteno, Alfredopt_BR
dc.date.accessioned2020-12-11T04:12:17Zpt_BR
dc.date.issued2020pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/216434pt_BR
dc.description.abstractWe study the properties of the Sydney University Molonglo Sky Survey (SUMSS) 843 MHz radio active galactic nuclei (AGNs) population in galaxy clusters from two large catalogues created using the Dark Energy Survey (DES): ∼11 800 optically selected RM-Y3 and ∼1000 X-ray selected MARD-Y3 clusters. We show that cluster radio loud AGNs are highly concentrated around cluster centres to z ∼ 1. We measure the halo occupation number for cluster radio AGNs above a threshold luminosity, finding that the number of radio AGNs per cluster increases with cluster halo mass as N ∝ M1.2 ± 0.1 (N ∝ M0.68 ± 0.34) for the RM-Y3 (MARD-Y3) sample. Together, these results indicate that radio mode feedback is favoured in more massive galaxy clusters. Using optical counterparts for these sources, we demonstrate weak redshift evolution in the host broad-band colours and the radio luminosity at fixed host galaxy stellar mass. We use the redshift evolution in radio luminosity to break the degeneracy between density and luminosity evolution scenarios in the redshift trend of the radio AGNs luminosity function (LF). The LF exhibits a redshift trend of the form (1 + z)γ in density and luminosity, respectively, of γD = 3.0 ± 0.4 and γP = 0.21 ± 0.15 in the RM-Y3 sample, and γD = 2.6 ± 0.7 and γP = 0.31 ± 0.15 in MARD-Y3. We discuss the physical drivers of radio mode feedback in cluster AGNs, and we use the cluster radio galaxy LF to estimate the average radio-mode feedback energy as a function of cluster mass and redshift and compare it to the core (<0.1R500) X-ray radiative losses for clusters at z < 1.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 494, no. 2 (May 2020), p. 1705–1723pt_BR
dc.rightsOpen Accessen
dc.subjectAglomerados de galaxiaspt_BR
dc.subjectGalaxies: activeen
dc.subjectGalaxies: clusters: generalen
dc.subjectNucleo galaticopt_BR
dc.subjectGalaxies: luminosity functionen
dc.subjectGaláxias ativaspt_BR
dc.subjectDeslocamento para o vermelhopt_BR
dc.subjectMass functionen
dc.subjectCosmology: observationsen
dc.subjectSubmillimeter: galaxiesen
dc.titleConstraining radio mode feedback in galaxy clusters with the cluster radio AGNs properties to z ∼ 1pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001119030pt_BR
dc.type.originEstrangeiropt_BR


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