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Stellar variability in the VVV survey: overview and first results

Published online by Cambridge University Press:  18 February 2014

M. Catelan ,
D. Minniti ,
P. W. Lucas ,
I. Dékány ,
R. K. Saito ,
R. Angeloni ,
J. Alonso-García ,
M. Hempel ,
K. Hełminiak  and
A. Jordán
...Show all authors
M. Catelan
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
D. Minniti
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
P. W. Lucas
Affiliation:
University of Hertfordshire, Hatfield, UK
I. Dékány
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
R. K. Saito
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
R. Angeloni
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
J. Alonso-García
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
M. Hempel
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
K. Hełminiak
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile Nicolaus Copernicus Astronomical Center, Toruń, Poland
A. Jordán
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
R. Contreras Ramos
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
C. Navarrete
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
J. C. Beamín
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
A. F. Rojas
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
F. Gran
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
C. E. Ferreira Lopes
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile Universidade Federal do Rio Grande do Norte, Natal, Brazil
C. Contreras Peña
Affiliation:
University of Hertfordshire, Hatfield, UK
E. Kerins
Affiliation:
The University of Manchester, Manchester, UK
L. Huckvale
Affiliation:
The University of Manchester, Manchester, UK European Southern Observatory, Garching, Germany
M. Rejkuba
Affiliation:
European Southern Observatory, Garching, Germany
R. Cohen
Affiliation:
Universidad de Concepción, Concepción, Chile
F. Mauro
Affiliation:
Universidad de Concepción, Concepción, Chile
J. Borissova
Affiliation:
Universidad de Valparaíso, Valparaíso, Chile
P. Amigo
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile Universidad de Valparaíso, Valparaíso, Chile
S. Eyheramendy
Affiliation:
Pontificia Universidad Católica de Chile, Departamento de Estadística, Santiago, Chile
K. Pichara
Affiliation:
Pontificia Universidad Católica de Chile, Facultad de Ingeniería, Santiago, Chile
N. Espinoza
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
C. Navarro
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile Universidad de Valparaíso, Valparaíso, Chile
G. Hajdu
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
D. N. Calderón Espinoza
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
G. A. Muro
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile
H. Andrews
Affiliation:
Pontificia Universidad Católica de Chile, Instituto de Astrofísica, Santiago, Chile email: mcatelan@astro.puc.cl The Milky Way Millennium Nucleus, Santiago, Chile Leiden Observatory, Leiden, The Netherlands
V. Motta
Affiliation:
Universidad de Valparaíso, Valparaíso, Chile
R. Kurtev
Affiliation:
Universidad de Valparaíso, Valparaíso, Chile
J. P. Emerson
Affiliation:
Queen Mary, University of London, London, UK
C. Moni Bidin
Affiliation:
The Milky Way Millennium Nucleus, Santiago, Chile Instituto de Astronomía, Universidad Católica del Norte, Antofagasta, Chile
A.-N. Chené
Affiliation:
Gemini Observatory, Hawaii, USA
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Abstract

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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.

Keywords

surveysstars: novaecataclysmic variablesstars: rotationstars: spotsstars: variables: Cepheidsother
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 395 - 396
Copyright
Copyright © International Astronomical Union 2014 

References

Catelan, M., Minniti, D., Lucas, P. W., et al. 2011, Carnegie Obs. Conf. Ser., 5, 145Google Scholar
Catelan, M., Minniti, D., Lucas, P. W., et al. 2013, in: Kinemuchi, K., Smith, H. A. & De Lee, N. (eds.), 40 Years of Variable Stars: A Celebration of Contributions by Horace A. Smith, p. 139Google Scholar
Minniti, D., Lucas, P. W., Emerson, J. P., et al. 2010, New Astron., 15, 433Google Scholar
Saito, R. K., Hempel, M., Minniti, D., et al. 2012, A&A, 537, A107Google Scholar