Constraints on the formation of the globular cluster IC 4499 from multiwavelength photometry

Simple item page
dc.contributor.authorWalker, A. R.
dc.contributor.authorKunder, A. M.
dc.contributor.authorAndreuzzi, G.
dc.contributor.authorDi Cecco, A.
dc.contributor.authorStetson, P. B.
dc.contributor.authorMonelli, M.
dc.contributor.authorCassisi, S.
dc.contributor.authorBono, G.
dc.contributor.authorDe Propris, R.
dc.contributor.authorDall'Ora, M.
dc.contributor.authorNemec, J. M.
dc.contributor.authorZoccali, M.
dc.date.accessioned2025-01-21T00:01:22Z
dc.date.available2025-01-21T00:01:22Z
dc.date.issued2011
dc.description.abstractWe present new multiband photometry for the Galactic globular cluster IC 4499 extending well past the main-sequence turn-off in the U, B, V, R, I and DDO51 bands. This photometry is used to determine that IC 4499 has an age of 12 +/- 1 Gyr and a cluster reddening of E(B - V) = 0.22 +/- 0.02. Hence, IC 4499 is coeval with the majority of Galactic globular clusters, in contrast to suggestions of a younger age. The density profile of the cluster is observed to not flatten out to at least r similar to 800 arcsec, implying that either the tidal radius of this cluster is larger than previously estimated, or that IC 4499 is surrounded by a halo. Unlike the situation in some other, more massive, globular clusters, no anomalous colour spreads in the ultraviolet are detected among the red giant branch stars. The small uncertainties in our photometry should allow the detection of such signatures apparently associated with variations of light elements within the cluster, suggesting that IC 4499 consists of a single stellar population.
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1365-2966.2011.18736.x
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1111/j.1365-2966.2011.18736.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95385
dc.identifier.wosidWOS:000293755000072
dc.issue.numero1
dc.language.isoen
dc.pagina.final654
dc.pagina.inicio643
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectHertzsprung-Russell and colour-magnitude diagrams
dc.subjectglobular clusters: individual: IC 4499
dc.titleConstraints on the formation of the globular cluster IC 4499 from multiwavelength photometry
dc.typeartículo
dc.volumen415
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas