The Ultra-VISTA survey, targeting a sub-area of the COSMOS field, represents the deepest of the six near-infrared ESO public imaging surveys, which are currently being executed at ESO’s Visible and Infrared Survey Telescope for Astronomy (VISTA). The first release of the new infrared source catalogue in the COSMOS field is now accessible from the ESO Science Archive Facility through a new powerful user interface for querying and data download.

The Ultra-VISTA Ks-selected [5-sigma limit Ks=23.7] matched source catalogue contains 331,077 sources observed in Y, J, H and Ks bands over the full “deep” survey area of 1.8 deg2, with narrow band NB118 observations covering the “ultra-deep stripes” area. The catalogue was prepared by the Ultra-VISTA team for the first catalogue release (DR1) and delivered through the ESO Phase 3 system for publication to the ESO community. It is now accessible from the ESO Science Archive Facility through a new dedicated user interface with powerful search options and download capabilities. The ESO Catalogue Facility complements the existing functionalities by adding the possibility to query catalogues by content using positional and non-positional constraints. To this end the catalogue data is stored in a dedicated data base system from which the data are extracted on request, according to the constraints and output format specified by the user.

Additional Phase 3 catalogue data, which have been submitted by VISTA public survey teams, will soon be made available through the ESO Catalogue Facility.

Links:

• Phase3 data releases
• ESO Catalogue Facility