Stellar variability in the VVV survey: Overview and first results

M. Catelan, D. Minniti, P. W. Lucas, I. Dékány, R. K. Saito, R. Angeloni, J. Alonso-García, M. Hempel, K. Hełminiak, A. Jordán, R. Contreras Ramos, C. Navarrete, J. C. Beamín, A. F. Rojas, F. Gran, C. E.Ferreira Lopes, C. Contreras Peña, E. Kerins, L. Huckvale, M. RejkubaR. Cohen, F. Mauro, J. Borissova, P. Amigo, S. Eyheramendy, K. Pichara, N. Espinoza, C. Navarro, G. Hajdu, D. N.Calderón Espinoza, G. A. Muro, H. Andrews, V. Motta, R. Kurtev, J. P. Emerson, C. Moni Bidin, A. N. Chené

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

Abstract

The Vista Variables in the Vía Láctea (VVV) ESO Public Survey is an ongoing time-series, near-infrared (IR) survey of the Galactic bulge and an adjacent portion of the inner disk, covering 562 square degrees of the sky, using ESO's VISTA telescope. The survey has provided superb multi-color photometry in 5 broadband filters (Z, Y, J, H, and Ks), leading to the best map of the inner Milky Way ever obtained, particularly in the near-IR. The main part of the survey, which is focused on the variability in the Ks-band, is currently underway, with bulge fields observed between 34 and 73 times, and disk fields between 34 and 36 times. When the survey is complete, bulge (disk) fields will have been observed up to a total of 100 (60) times, providing unprecedented depth and time coverage in the near-IR. Here we provide a first overview of stellar variability in the VVV data.

Original languageEnglish
Title of host publicationPrecision Asteroseismology
EditorsJoyce Guzik, William Chaplin, William Chaplin, Gerald Handler, Andrzej Pigulski
Pages395-396
Number of pages2
EditionS301
DOIs
Publication statusPublished - 2014

Publication series

NameProceedings of the International Astronomical Union
NumberS301
Volume9
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

Keywords

  • cataclysmic variables
  • other
  • stars: novae
  • stars: rotation
  • stars: spots
  • stars: variables: Cepheids
  • surveys

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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