RR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99

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dc.contributor.authorButler, Evan
dc.contributor.authorKunder, Andrea
dc.contributor.authorPrudil, Zdenek
dc.contributor.authorCovey, Kevin R.
dc.contributor.authorBall, Macy
dc.contributor.authorCampos, Carlos
dc.contributor.authorGollnick, Kaylen
dc.contributor.authorCarvajal, Julio Olivares
dc.contributor.authorHughes, Joanne
dc.contributor.authorDevine, Kathryn
dc.contributor.authorJohnson, Christian I.
dc.contributor.authorVivas, A. Katherina
dc.contributor.authorRich, R. Michael
dc.contributor.authorJoyce, Meridith
dc.contributor.authorSimion, Iulia T.
dc.contributor.authorMarchetti, Tommaso
dc.contributor.authorKoch-Hansen, Andreas J.
dc.contributor.authorClarkson, William I.
dc.contributor.authorKuss, Rebekah
dc.date.accessioned2025-01-20T17:08:26Z
dc.date.available2025-01-20T17:08:26Z
dc.date.issued2024
dc.description.abstractPatchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination. A recent analysis suggests it is a low-luminosity globular cluster with a population of RR Lyrae stars. We present new spectra of stars in and around Patchick 99, targeting specifically the three RR Lyrae stars associated with the cluster as well as the other RR Lyrae stars in the field. A sample of 53 giant stars selected from proper motions and a position on the color-magnitude diagram are also observed. The three RR Lyrae stars associated with the cluster have similar radial velocities and distances, and two of the targeted giants also have radial velocities in this velocity regime and [Fe/H] metallicities that are slightly more metal-poor than the field. Therefore, if Patchick 99 is a bona fide globular cluster, it would have a radial velocity of -92 +/- 10 km s-1, a distance of 6.7 +/- 0.4 kpc (as determined from the RR Lyrae stars), and an orbit that confines it to the inner bulge.
dc.fuente.origenWOS
dc.identifier.doi10.3847/2041-8213/ad20e8
dc.identifier.eissn2041-8213
dc.identifier.issn2041-8205
dc.identifier.urihttps://doi.org/10.3847/2041-8213/ad20e8
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90950
dc.identifier.wosidWOS:001175716100001
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal letters
dc.rightsacceso restringido
dc.titleRR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99
dc.typeartículo
dc.volumen963
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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