VizieR Online Data Catalog: The COSMOS2015 catalog (Laigle+, 2016)

We present here a catalog containing photometry and physical parameters for more than half a million objects over the 2deg² COSMOS field. The photometry has been extracted from PSF-homogenised COSMOS optical near infrared data and infrared data. Each near-infrared and optical band has been convolved so the final seeing (measured using a fit to a Moffat profile) corresponds to 0.8". Sources are selected from a chi-squared sum of the optical z++ band (SuprimeCam) and the 4 NIR YJHKs bands (UltraVISTA-DR2). This ensures that the catalogue contains both redder and bluer objects. It contains the NIR photometric data obtained at the ESO-VISTA telescope by the UltraVista-DR2 collaboration, as processed at IAP-Terapix and made publicly available, the imaging data publicly available from the COSMOS collaboration including Subaru and CFHT, the new Y band taken with HSC Subaru, and the IR data taken with Spitzer as a part the SPLASH Spitzer legacy program. It contains also the match with the MIPS 24 um catalog. Physical parameters have been computed with Le Phare at LAM and have been calibrated using spectroscopic data. In order to compute photometric redshifts with this catalogue, some additional corrections have to be applied to the (AB) magnitudes provided here. They are fully described in the paper.

As in previous COSMOS catalog papers, all of the images and noise maps have been resampled to the same tangent point RAJ2000=150.1163213, DEJ2000=2.20973097. The entire catalog covers a square of 2deg² centered on this tangent point. Figure 1 shows the footprint of all of the observations.

COSMOS NIR data come from several sources: WIRCam data (McCracken+ 2010ApJ...708..202M), covering the entire field, and UltraVISTA (McCracken+ 2012, J/A+A/544/A156) data, covering the central 1.5deg². The UltraVISTA data includes the DR2 "deep" and "ultra-deep" stripes. The YJHKs-band data used here were taken between 2009 December and 2012 May with the VIRCAM instrument on the VISTA telescope as part of the UltraVISTA survey program and constitute the DR2 UltraVISTA release.

The COSMOS2015 catalog also offers a match with X-ray, near ultraviolet (NUV), IR, and Far-IR data, coming, respectively, from Chandra, GALEX, MIPS/Spitzer, PACS/Herschel, and SPIRE/Herschel.

The 3.6um, 4.5um, 5.8um, and 8.0um (respectively, channels 1, 2, 3, and 4) IRAC data used in this paper consist of the first two-thirds of the SPLASH COSMOS data set together with S-COSMOS (Sanders+ 2007ApJS..172...86S), the Spitzer Extended Mission Deep Survey, the Spitzer-Candels survey data, along with several smaller programs that observed the COSMOS field.

(1 data file).