A catalogue of white dwarf candidates in VST ATLAS

Abstract

The Sloan Digital Sky Survey (SDSS) has created a knowledge gap between the Northern and the Southern hemispheres which is very marked for white dwarfs: only $\simeq 15$% of the known white dwarfs are south of the equator. Here we make use of the VST ATLAS survey, one of the first surveys obtaining deep, optical, multi-band photometry over a large area of the southern skies, to remedy this situation. Applying the colour and proper-motion selection developed in Gentile Fusillo et al. (2015a) to the most recent internal data release (2016 April 25) of VST ATLAS we created a catalogue of $\simeq 4200$ moderately bright ($g\le 19$), high-confidence southern white dwarf candidates, which can be followed up individually with both the large array of southern telescopes or in bulk with forthcoming multi-object spectrographs.

arXiv commentAccepted for publication in MNRAS. 11 pages, 8 figures, 5 tables. The full catalogue presented in table 4 is available for download at http://www2.warwick.ac.uk/fac/sci/physics/research/astro/research/catalogues/ATLAS_WDcatalogue_submission.csv

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