A new analysis of 1,915 DB white dwarfs from SDSS and Gaia yields precise parameters, identifies dozens of unresolved binary candidates, and concludes that the convective dilution scenario alone cannot explain the hydrogen observed in most cool DBA white dwarfs.
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A Photometric and Spectroscopic Investigation of the DB White Dwarf Population using SDSS and Gaia Data
A new analysis of 1,915 DB white dwarfs from SDSS and Gaia yields precise parameters, identifies dozens of unresolved binary candidates, and concludes that the convective dilution scenario alone cannot explain the hydrogen observed in most cool DBA white dwarfs.