2026-10-11T05:18:28Zhttps://gaia.aip.de/oai

oai:gaia.aip.de:tables/gaiadr3.sdssdr13_join2022-06-13tables

10.17876/gaia/dr.3/23SDSS DR13 JoinEuropean Space Agency (ESA)DPAC ConsortiumAstronomyLeibniz Institute for Astrophysics Potsdam (AIP)<p>Convenience table to be used to join SDSS DR13 catalogue with the cross-match results. The table links the external catalogue original <code>source_id</code> (<code>original_ext_source_id</code>) to the corresponding additional numerical identifier (<code>clean_sdssdr13_oid</code>). Both <code>original_ext_source_id</code> and <code>clean_sdssdr13_oid</code> are present in the cross-match output tables (<code>sdssdr13_best_neighbour</code> and <code>sdssdr13_neighbourhood</code>). However, in case there are suspected duplicates in the external catalogue, different <code>original_ext_source_id</code> will correspond to the same <code>clean_sdssdr13_oid</code>. In the cross-match output table only the <code>original_ext_source_id</code> of the source with the best astrometry among the suspected duplicates will be listed. In practice, users may use the <code>original_ext_source_id</code> in the original catalogue to find the matching source with the best astrometry. Users interested to find all matching suspected duplicates should instead use the <code>clean_sdssdr13_oid</code> in the join with the cross-match result tables. See Chapter [chap:crossmatch] for more details on the duplicates in the external catalogues and their treatment in the cross-match computations.</p>2022-06-13BY_NC_IGDataset