VICS82: The VISTA–CFHT Stripe 82 Near-infrared Survey
The Astrophysical Journal Supplement Series, 2017•iopscience.iop.org
We present the VISTA–CFHT Stripe 82 (VICS82) survey: a near-infrared (J+K s) survey
covering 150 square degrees of the Sloan Digital Sky Survey (SDSS) equatorial Stripe 82 to
an average depth of J= 21.9 AB mag and K s= 21.4 AB mag (80% completeness limits; 5σ
point-source depths are approximately 0.5 mag brighter). VICS82 contributes to the growing
legacy of multiwavelength data in the Stripe 82 footprint. The addition of near-infrared
photometry to the existing SDSS Stripe 82 coadd ugriz photometry reduces the scatter in …
covering 150 square degrees of the Sloan Digital Sky Survey (SDSS) equatorial Stripe 82 to
an average depth of J= 21.9 AB mag and K s= 21.4 AB mag (80% completeness limits; 5σ
point-source depths are approximately 0.5 mag brighter). VICS82 contributes to the growing
legacy of multiwavelength data in the Stripe 82 footprint. The addition of near-infrared
photometry to the existing SDSS Stripe 82 coadd ugriz photometry reduces the scatter in …
Abstract
We present the VISTA–CFHT Stripe 82 (VICS82) survey: a near-infrared (J+K s) survey covering 150 square degrees of the Sloan Digital Sky Survey (SDSS) equatorial Stripe 82 to an average depth of J= 21.9 AB mag and K s= 21.4 AB mag (80% completeness limits; 5σ point-source depths are approximately 0.5 mag brighter). VICS82 contributes to the growing legacy of multiwavelength data in the Stripe 82 footprint. The addition of near-infrared photometry to the existing SDSS Stripe 82 coadd ugriz photometry reduces the scatter in stellar mass estimates to dex for galaxies with at, and offers improvement compared to optical-only estimates out to, with stellar masses constrained within a factor of approximately 2.5. When combined with other multiwavelength imaging of the Stripe, including moderate-to-deep ultraviolet (GALEX), optical and mid-infrared (Spitzer-IRAC) coverage, as well as tens of thousands of spectroscopic redshifts, VICS82 gives access to approximately 0.5 Gpc 3 of comoving volume. Some of the main science drivers of VICS82 include (a) measuring the stellar mass function of galaxies out to;(b) detecting intermediate-redshift quasars at (c) measuring the stellar mass function and baryon census of clusters of galaxies, and (d) performing cross-correlation experiments of cosmic microwave background lensing in the optical/near-infrared that link stellar mass to large-scale dark matter structure. Here we define and describe the survey, highlight some early science results, and present the first public data release, which includes an SDSS-matched catalog as well as the calibrated pixel data themselves.
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