AstroGrid Virtual Observatory Access to Large Scale Surveys: The IPHAS Galactic Plane Survey - a Science Driven Example

This paper describes how the IPHAS galactic plane survey data products are being made available utilizing the AstroGrid Virtual Observatory system (http://www.astrogrid.org). This is enabling the analysis of the large pipeline-processed IPHAS data products, both images and catalogs. Note is made of how the AstroGrid system is being used by the astronomer, for instance in the use of workflows to automate certain routine analysis operations, such as generating lists of candidate emission line stars, based on database queries of the IPHAS catalog data. Specific science use-case examples are given that benefit from the powerful VO access to the IPHAS data, including use of emission line stars as probes of galactic structure.