ARCHES - Astronomical Resource Cross-matching for High Energy Studies
Description:
Each of the archival catalogues used for the crossmatch is referenced by single letter: 3XMM: x, Galex: g, UCAC:u CMC: c, SDSS: s, UKIDSS LAS: l, KIDS GPS: k ALLWISE; w AKARI: a and FIRST_NVSS_COMBO: r