Variable stars in the VVV globular clusters

Javier Alonso-García, Márcio Catelan, Rodrigo Contreras Ramos, István Dékány, Dante Minniti

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The VVV survey observed some of the most crowded and most obscured regions in the inner Milky Way during the last years. A significant sample of the less known globular clusters in our galaxy lie there. Combining the high-resolution, wide-field, near infrared capabilities of the survey camera, the use of 5 different filters, and multi-epoch observations, we are able to overcome many of the previous challenges that prevented a proper study of these objects. Particularly, the identification of the RR Lyrae stars in these globular clusters is proving to be a fundamental tool to establish accurately their distances and reddenings, and to infer information about the Oosterhoff dichotomy that Galactic globular clusters seem to follow.

Original languageEnglish
Title of host publicationWide-Field Variability Surveys
Subtitle of host publicationA 21st Century Perspective - 22nd Los Alamos Stellar Pulsation - Conference Series Meeting
EditorsWolfgang Gieren, Marcio Catelan, Wolfgang Gieren, Marcio Catelan
PublisherEDP Sciences
ISBN (Electronic)9782759890248
Publication statusPublished - 8 Sept 2017
Event22nd Los Alamos Stellar Pulsation Conference Series Meeting 2016 - San Pedro de Atacama, Chile
Duration: 28 Nov 20162 Dec 2016

Publication series

NameEPJ Web of Conferences
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X


Conference22nd Los Alamos Stellar Pulsation Conference Series Meeting 2016
CitySan Pedro de Atacama

ASJC Scopus subject areas

  • General Physics and Astronomy


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