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Paper: The VVV/VVV-X Survey: Tracing the Galactic Bulge and Southern Disk with Classical Pulsators
Volume: 529, RR Lyrae/Cepheid 2019: Frontiers of Classical Pulsators
Page: 199
Authors: Alonso-García, J.
Abstract: Classical pulsators such as RR Lyrae and Cepheids have been long used to better understand their parent stellar populations. However, their proper identification in regions close to the Galactic plane is complicated by the high extinction present at these low-latitude lines of sight. Observations in the near-infrared are better suited for these regions as extinction is considerably diminished at these longer wavelengths. The Vista Variables in the Vía Láctea (VVV) survey, and its extension, VVV-X, are taking full advantage of the near-infrared, wide-field, high-resolution capabilities of the 4m VISTA telescope and its camera to study the Galactic bulge and the adjacent Galactic disk. VVV and VVV-X multi-epoch observations allow to explore the transient sky and search for variable stars in these highly reddened regions. In these proceedings, I summarize our most recent work using the VVV survey to identify and characterize the classical pulsating stars located in the inner Galactic plane, and highlight the main milestones we have achieved in better understanding the distributions and relevance of the stellar populations that these variable stars trace in the Galactic bulge and southern disk.
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