Discovery of VVV CL001 A low-mass globular cluster next to UKS 1 in the direction of the Galactic bulge

dc.contributor.authorMinniti, D.
dc.contributor.authorHempel, M.
dc.contributor.authorToledo, I.
dc.contributor.authorIvanov, V. D.
dc.contributor.authorAlonso Garcia, J.
dc.contributor.authorSaito, R. K.
dc.contributor.authorCatelan, M.
dc.contributor.authorGeisler, D.
dc.contributor.authorJordan, A.
dc.contributor.authorBorissova, J.
dc.contributor.authorZoccali, M.
dc.contributor.authorKurtev, R.
dc.contributor.authorCarraro, G.
dc.contributor.authorBarbuy, B.
dc.contributor.authorClaria, J.
dc.contributor.authorRejkuba, M.
dc.contributor.authorEmerson, J.
dc.contributor.authorMoni Bidin, C.
dc.date.accessioned2024-01-10T13:12:23Z
dc.date.available2024-01-10T13:12:23Z
dc.date.issued2011
dc.description.abstractContext. It is not known how many globular clusters may remain undetected towards the Galactic bulge.
dc.description.abstractAims. One of the aims of the VISTA Variables in the Via Lactea (VVV) Survey is to accurately measure the physical parameters of the known globular clusters in the inner regions of the Milky Way and search for new ones, hidden in regions of large extinction.
dc.description.abstractMethods. From deep near-infrared images, we derive deep JHK(S)-band photometry of a region surrounding the known globular cluster UKS 1 and reveal a new low-mass globular cluster candidate that we name VVV CL001.
dc.description.abstractResults. We use the horizontal-branch red clump to measure E(B-V) similar to 2.2 mag, (m - M)(0) = 16.01 mag, and D = 15.9 kpc for the globular cluster UKS 1. On the basis of near-infrared colour-magnitude diagrams, we also find that VVV CL001 has E(B-V) similar to 2.0, and that it is at least as metal-poor as UKS 1, although its distance remains uncertain.
dc.description.abstractConclusions. Our finding confirms the previous projection that the central region of the Milky Way harbours more globular clusters. VVV CL001 and UKS 1 are good candidates for a physical cluster binary, but follow-up observations are needed to decide if they are located at the same distance and have similar radial velocities.
dc.description.funderFONDAP Center for Astrophysics
dc.description.funderBASAL Center for Astrophysics and Associated Technologies
dc.description.funderMIDEPLAN
dc.description.funderCONICYT
dc.description.funderEuropean Southern Observatory
dc.description.funderNational Aeronautics and Space Administration
dc.description.funderNational Science Foundation
dc.description.funderScience and Technology Facilities Council
dc.fechaingreso.objetodigital2024-05-02
dc.format.extent4 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/201015795
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/201015795
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78179
dc.identifier.wosidWOS:000287484100096
dc.information.autorucFísica;Catelan M ;S/I;1001556
dc.information.autorucFísica;Hempel M ;S/I;1007031
dc.information.autorucFísica;Jordan A ;S/I;176960
dc.information.autorucFísica;Minniti D ;S/I;100504
dc.information.autorucFísica;Toledo I ;S/I;11606
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherEDP SCIENCES S A
dc.revistaASTRONOMY & ASTROPHYSICS
dc.rightsacceso restringido
dc.subjectglobular clusters: general
dc.subjectglobular clusters: individual: UKS 1
dc.subjectglobular clusters: individual: VVV CL001
dc.subjectsurveys
dc.subjectLARGE-MAGELLANIC-CLOUD
dc.subjectRED-CLUMP
dc.subjectINFRARED PHOTOMETRY
dc.subjectSTAR-CLUSTERS
dc.subjectBINARY
dc.subjectMETALLICITY
dc.subjectMAGNITUDE
dc.subjectDISTANCE
dc.subjectREGIONS
dc.subjectGALAXY
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleDiscovery of VVV CL001 A low-mass globular cluster next to UKS 1 in the direction of the Galactic bulge
dc.typeartículo
dc.volumen527
sipa.codpersvinculados1001556
sipa.codpersvinculados1007031
sipa.codpersvinculados176960
sipa.codpersvinculados100504
sipa.codpersvinculados11606
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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