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| Paper: |
Searching for Variable Stars in the VVV Globular Clusters |
| Volume: |
491, Fifty Years of Wide Field Studies in the Southern Hemisphere: Resolved Stellar Populations in the Galactic Bulge and the Magellanic Clouds |
| Page: |
111 |
| Authors: |
Alonso-García, J.; Dékány, I.; Catelan, M.; Contreras, R.; Minniti, D. |
| Abstract: |
The “VISTA Variables in the Vía Láctea” (VVV) ESO Public Survey data is
currently surveying the central regions of the Milky Way at near-infrared
wavelengths, including 36 known Galactic globular clusters. We already have
data in several filters to generate their color-magnitude diagrams. We also
have enough epochs to begin producing the light curves of the cluster stars and
look for any possible member variable stars. We are especially interested in
RR Lyrae stars, since they are abundant in Galactic globular clusters and the
period-luminosity relation they show at near-infrared wavelengths can help
enormously in providing accurate distances and reddenings for the most
extincted and poorly studied inner Galactic globular clusters. We center our
attention here in the preliminary analysis of three of these clusters:
NGC 6441, Terzan 10 and 2MASS-GC02. |
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