VVV survey near-infrared colour catalogue of known variable stars

Abstract

Context. The Vista Variables in the Via Lactea (VVV) near-infrared variability survey explores some of the most complex regions of the Milky Way bulge and disk in terms of high extinction and high crowding. Aims. We add a new wavelength dimension to the optical information available at the American Association of Variable Star Observers International Variable Star Index (VSX-AAVSO) catalogue to test the VVV survey near-infrared photometry to better characterise these objects. Methods. We cross-matched the VVV and the VSX-AAVSO catalogues along with Gaia Data Release 2 photometry and parallax. Results. We present a catalogue that includes accurate individual coordinates, near-infrared magnitudes (ZY JHKs), extinctions Aks, and distances based on Gaia parallaxes. We also show the near-infrared CMDs and spatial distributions for the different VSX types of variable stars, including important distance indicators, such as RR Lyrae, Cepheids, and Miras. By analysing the photometric flags in our catalogue, we found that about 20% of the stars with measured and verified variability are flagged as non-stellar sources, even when they are outside of the saturation and/or noise regimes. Additionally, we pair-matched our sample with the VIVA catalogue and found that more than half of our sources are missing from the VVV variability list, mostly due to observations with low signal-to-noise ratio or photometric problems with a low percentage due to failures in the selection process. Conclusions. Our results suggest that the current knowledge of the variability in the Galaxy is biased to nearby stars with low extinction. The present catalogue also provides the groundwork for characterising the results of future large variability surveys such as the Vera C. Rubin Observatory Legacy Survey of Space and Time in the highly crowded and reddened regions of the Galactic plane, as well as follow-up campaigns for

arXiv comment14 pages, 9 figures, A&A accepted

References in corpus (34)

• The Sloan Digital Sky Survey: Technical Summary
• Gaia Data Release 2. Summary of the contents and survey properties
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Gaia mission
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
• VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
• Possible Gravitational Microlensing of a Star in the Large Magellanic Cloud
• Gaia Data Release 2: using Gaia parallaxes
• The AKARI/IRC Mid-Infrared All-Sky Survey
• Real-Time Difference Imaging Analysis of MOA Galactic Bulge Observations During 2000
• The Catalina Surveys Periodic Variable Star Catalog
• The ASAS-SN Catalog of Variable Stars I: The Serendipitous Survey
• VVV DR1: The First Data Release of the Milky Way Bulge and Southern Plane from the Near-Infrared ESO Public Survey VISTA Variables in the Via Lactea
• A Catalog and Atlas of Cataclysmic Variables - The Living Edition
• Reddening and metallicity maps of the Milky Way bulge from VVV and 2MASS II. The complete high resolution extinction map and implications for Bulge studies
• MACHO Alert 95-30 : First Real-Time Observation of Extended Source Effects in Gravitational Microlensing
• Gaia Data Release 2: Variable stars in the colour-absolute magnitude diagram
• Wide-field Infrared Survey Explorer (WISE) Catalog of Periodic Variable Stars
• Chemo-kinematics of the $Gaia$ RR Lyrae: the halo and the disc
• Gaia Data Release 2: The first Gaia catalogue of long-period variable candidates
• Milky Way demographics with the VVV survey. IV. PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk
• A new near-IR window of low extinction in the Galactic plane
• The VVV Survey RR Lyrae Population in the Galactic Centre Region
• On the optimal calibration of VVV photometry
• A Near-infrared RR Lyrae census along the southern Galactic plane: the Milky Way's stellar fossil brought to light
• A near-infrared catalogue of the Galactic novae in the VVV survey area
• New Insights into Time Series Analysis II -- No Correlated Observations
• New Insights into Time Series Analysis - I - Correlated observations
• The VVV Infrared Variability Catalog (VIVA-I)
• The variability behavior of CoRoT M-giant Stars
• Variability and stellar populations with deep optical-IR images of the Milky Way disk: matching VVV with VLT/VIMOS data
• New Insights into Time Series Analysis III - Setting constraints on period analysis
• Recovering variable stars in large surveys: EA${}_{\mathrm{up}}$ Algol-type class in the Catalina Survey

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