Galaxy coordinates. I. Accuracy of galaxy coordinates in large catalogues

Details Galaxy coordinates. I. Accuracy of galaxy coordinates in large catalogues Galaxy coordinates. I. Accuracy of galaxy coordinates in large catalogues

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...352..431p&link_type=abstract

Astronomy and Astrophysics, v.352, p.431-436 (1999)

Astronomy and Astrophysics

Astrophysics

3

Methods: Data Analysis, Catalogs, Galaxies: General

Scientific paper

Using a generalization of the triple intercomparison method introduced by de Vaucouleurs and Head we calculated the accuracy of galaxy coordinates taken from the large catalogues. The result confirms the qualitative estimation we had in mind about the different catalogues, but for the first time it will be now possible to give a quantitative estimation of the accuracy of the position of individual galaxy, depending on the source of its coordinates. This is important in view of automatic cross-identifications which will be necessary in a near future for inclusion of very large number of new galaxies.

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