Unleashing the inner Galaxy : the proper motion revolution
Abstract
The Galactic bulge is usually avoided by wide-field surveys due to the stellar crowding and the dust and gas in the line of sight that covers the heart of the Milky Way. Within this framework, and taking advantage of the near-IR multi-epoch observations of the VVV survey towards the Galactic bulge, we aim to characterize in full detail the innermost part of the Galaxy in terms of its stellar populations, globular clusters, variable stars, and most importantly the individual proper motion of the stars. Here we show the first glimpse of the results of this study, in which we are able to recover the entire sample of known globular clusters within the analyzed area and also find new ones due to the derived proper motion information. We also explore the variable stars present in the area, specifically, RR Lyrae stars which are perfect distance indicators, to give clues about its cluster membership.
- Publication:
-
The Galactic Bulge at the Crossroads
- Pub Date:
- December 2018
- DOI:
- 10.5281/zenodo.2644178
- Bibcode:
- 2018gbx..confE..57G
- Keywords:
-
- Zenodo community galacticbulge2018