2024-03-29T07:59:23Zivo://wfau.roe.ac.uk/vhsDR3-dsa2019-12-04T13:40:01ZIWFAU, Institute for Astronomy, University of EdinburghVHS DR3 - VISTA Hemisphere Survey Data Release 3WFAU, Institute for Astronomy, University of Edinburgh2015Stars,Survey,Galaxy, low mass stars, dark energyMark Holliman <msh@roe.ac.uk>AstroObjectsivo://wfau.roe.ac.uk/vhsDR3-dsahttp://www.ast.cam.ac.uk/~rgm/vhs/application/xmlapplication/xmlapplication/xmlapplication/xmlapplication/xmlapplication/xmlapplication/xmlData Release 3The VHS will image the entire ~20 000 square degrees of the Southern Sky, with the exception of the areas already covered by the VIKING and VVV surveys, in J and Ks. The resulting data will be about 4 magnitudes deeper than 2MASS and DENIS. The 5000 square degrees covered by the Dark Energy Survey (DES), another imaging survey scheduled to begin in 2010 at the CTIO 4 metre Blanco telescope, will also be observed in H-band. The area around both of the Galactic Caps will be observed in Y- and H- band as well to be combined with the data from the VST ATLAS survey. The main science drivers of the VHS include: examining low mass and nearby stars, studying the merger history of the Galaxy, measuring the properties of Dark Energy through the examination of large-scale structure to a redshift of ~1, and searches for high redshift quasars.