Specific Frequencies and Luminosity Profiles of Cluster Galaxies and Intracluster Light in Abell 1689

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dc.contributor.authorAlamo Martinez, K. A.
dc.contributor.authorBlakeslee, J. P.
dc.date.accessioned2024-01-10T13:43:37Z
dc.date.available2024-01-10T13:43:37Z
dc.date.issued2017
dc.description.abstractWe present magnitudes and profile fits for 180 galaxies in the central field of the massive lensing cluster Abell 1689 using very deep imaging with the Hubble Space Telescope Advanced Camera for Surveys in the F814W bandpass. Previous work revealed an exceptionally large number of globular clusters (GCs) in A1689 and mapped their number density distribution. We decompose this number density map into GCs associated with individual cluster galaxies and ICGCs (intracluster GCs) associated with the intracluster light (ICL). In all, we measure GC specific frequencies S-N for 33 cluster members and the ICL. The relation between S-N and galaxy magnitude is consistent with the trend observed in Virgo, although some intermediate-luminosity galaxies scatter to S-N > 10. We estimate that the ICL makes up 11% of the starlight in this field, whereas the ICGCs account for similar to 35% of the GCs, both consistent with predictions from simulations. Galaxies with higher S-N values tend to be rounder, and there is a marginally significant trend of decreasing S-N with increasing specific angular momenta lambda(R). We also reevaluate the GC population in the A2744 Frontier Field, for which fewer than 1/10 as many GCs have been detected because of its larger distance. Finally, our core-Sersic fit to the light profile of the A1689 brightest cluster galaxy implies a break radius of 3.8 kpc, among the largest known; we discuss implications of the sizable core and extensive GC population for the supermassive black hole in light of scaling relations.
dc.description.funderFONDECYT
dc.fechaingreso.objetodigital2024-05-30
dc.format.extent19 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/aa8f44
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/aa8f44
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78701
dc.identifier.wosidWOS:000413701400006
dc.information.autorucAstrofísica;Alamo K;S/I;1019858
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.publisherIOP PUBLISHING LTD
dc.revistaASTROPHYSICAL JOURNAL
dc.rightsacceso restringido
dc.subjectgalaxies: clusters: individual (Abell 1689)
dc.subjectgalaxies: elliptical and lenticular, cD
dc.subjectgalaxies: star clusters: general
dc.subjectglobular clusters: general
dc.subjectSUPERMASSIVE BLACK-HOLES
dc.subjectMORPHOLOGY-DENSITY RELATION
dc.subjectDIGITAL SKY SURVEY
dc.subjectCOLOR-MAGNITUDE RELATION
dc.subjectGLOBULAR-CLUSTERS
dc.subjectSTELLAR MASS
dc.subjectELLIPTIC GALAXIES
dc.subjectVIRGO-CLUSTER
dc.subjectGALACTIC NUCLEI
dc.subjectDWARF GALAXIES
dc.subject.ods09 Industry, innovation and infrastructure
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleSpecific Frequencies and Luminosity Profiles of Cluster Galaxies and Intracluster Light in Abell 1689
dc.typeartículo
dc.volumen849
sipa.codpersvinculados1019858
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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