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Title: GALAXIES BEHIND THE GALACTIC PLANE: FIRST RESULTS AND PERSPECTIVES FROM THE VVV SURVEY

Abstract

VISTA Variables in the Via Lactea (VVV) is an ESO variability survey that is performing observations in near-infrared bands (ZY JHK{sub s}) toward the Galactic bulge and part of the disk with the completeness limits at least 3 mag deeper than Two Micron All Sky Survey. In the present work, we searched in the VVV survey data for background galaxies near the Galactic plane using ZY JHK{sub s} photometry that covers 1.636 deg{sup 2}. We identified 204 new galaxy candidates by analyzing colors, sizes, and visual inspection of multi-band (ZY JHK{sub s}) images. The galaxy candidate colors were also compared with the predicted ones by star count models considering a more realistic extinction model at the same completeness limits observed by VVV. A comparison of the galaxy candidates with the expected one by Millennium simulations is also presented. Our results increase the number density of known galaxies behind the Milky Way by more than one order of magnitude. A catalog with galaxy properties including ellipticity, Petrosian radii, and ZY JHK{sub s} magnitudes is provided, as well as comparisons of the results with other surveys of galaxies toward the Galactic plane.

Authors:
;  [1];  [2]; ;  [3]; ; ;  [4];  [5];  [6];  [7]
  1. SIM, Faculdade de Ciencias da Universidade de Lisboa, Ed. 8, Campo Grande, 1749-016 Lisbon (Portugal)
  2. Instituto de Astronomia, Geof. e Ciencias Atmosfericas da USP, Cidade Universitaria 05508-900 Sao Paulo, SP (Brazil)
  3. Departamento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, Santiago (Chile)
  4. Instituto de Astronomia Teorica y Experimental (IATE-CONICET), Laprida 922 X5000BGR Cordoba (Argentina)
  5. Center for Cosmology, Department of Physics and Astronomy, University of California Irvine, Irvine, CA 92697 (United States)
  6. Laboratorio Nacional de Astrofisica/MCTI, Rua Estados Unidos 154, Itajuba-MG 37504-364 (Brazil)
  7. Centre for Astrophysics Research, University of Hertfordshire, Hatfield (United Kingdom)
Publication Date:
OSTI Identifier:
22089832
Resource Type:
Journal Article
Journal Name:
Astronomical Journal (New York, N.Y. Online)
Additional Journal Information:
Journal Volume: 144; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1538-3881
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTRONOMY; ASTROPHYSICS; CATALOGS; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; DENSITY; IMAGES; M CODES; MILKY WAY; PHOTOMETRY; STAR MODELS; STARS

Citation Formats

Amores, E. B., Arsenijevic, V., Sodre, L., Minniti, D., Padilla, N., Alonso, M. V., Gurovich, S., Diaz Tello, J., Tollerud, E. J., Rodriguez-Ardila, A., and Lucas, P. W. GALAXIES BEHIND THE GALACTIC PLANE: FIRST RESULTS AND PERSPECTIVES FROM THE VVV SURVEY. United States: N. p., 2012. Web. doi:10.1088/0004-6256/144/5/127.
Amores, E. B., Arsenijevic, V., Sodre, L., Minniti, D., Padilla, N., Alonso, M. V., Gurovich, S., Diaz Tello, J., Tollerud, E. J., Rodriguez-Ardila, A., & Lucas, P. W. GALAXIES BEHIND THE GALACTIC PLANE: FIRST RESULTS AND PERSPECTIVES FROM THE VVV SURVEY. United States. doi:10.1088/0004-6256/144/5/127.
Amores, E. B., Arsenijevic, V., Sodre, L., Minniti, D., Padilla, N., Alonso, M. V., Gurovich, S., Diaz Tello, J., Tollerud, E. J., Rodriguez-Ardila, A., and Lucas, P. W. Thu . "GALAXIES BEHIND THE GALACTIC PLANE: FIRST RESULTS AND PERSPECTIVES FROM THE VVV SURVEY". United States. doi:10.1088/0004-6256/144/5/127.
@article{osti_22089832,
title = {GALAXIES BEHIND THE GALACTIC PLANE: FIRST RESULTS AND PERSPECTIVES FROM THE VVV SURVEY},
author = {Amores, E. B. and Arsenijevic, V. and Sodre, L. and Minniti, D. and Padilla, N. and Alonso, M. V. and Gurovich, S. and Diaz Tello, J. and Tollerud, E. J. and Rodriguez-Ardila, A. and Lucas, P. W.},
abstractNote = {VISTA Variables in the Via Lactea (VVV) is an ESO variability survey that is performing observations in near-infrared bands (ZY JHK{sub s}) toward the Galactic bulge and part of the disk with the completeness limits at least 3 mag deeper than Two Micron All Sky Survey. In the present work, we searched in the VVV survey data for background galaxies near the Galactic plane using ZY JHK{sub s} photometry that covers 1.636 deg{sup 2}. We identified 204 new galaxy candidates by analyzing colors, sizes, and visual inspection of multi-band (ZY JHK{sub s}) images. The galaxy candidate colors were also compared with the predicted ones by star count models considering a more realistic extinction model at the same completeness limits observed by VVV. A comparison of the galaxy candidates with the expected one by Millennium simulations is also presented. Our results increase the number density of known galaxies behind the Milky Way by more than one order of magnitude. A catalog with galaxy properties including ellipticity, Petrosian radii, and ZY JHK{sub s} magnitudes is provided, as well as comparisons of the results with other surveys of galaxies toward the Galactic plane.},
doi = {10.1088/0004-6256/144/5/127},
journal = {Astronomical Journal (New York, N.Y. Online)},
issn = {1538-3881},
number = 5,
volume = 144,
place = {United States},
year = {2012},
month = {11}
}