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Title: Spectroscopic confirmation of a white dwarf companion to the B star 16 Dra
Authors: Burleigh, MR
Barstow, MA
First Published: 13-Jul-2000
Publisher: EDP Sciences for European Southern Observatory (ESO), Springer Verlag (Germany) [Former Publisher]
Citation: Astronomy and Astrophysics, 2000, 359 (3), pp. 977-982 (6)
Abstract: Using an Extreme Ultraviolet Explorer (EUVE) spectrum, we confirm the identification of a white dwarf companion to the B9.5V star 16 Dra (HD150100), and constrain its surface temperature to lie between 29,000 K and 35,000 K. This is the third B star + white dwarf non-interacting Sirius-type binary to be confirmed, after y Pup (HR2875, HD59635) and θ Hya (HR3665, HD79469). 16 Dra and its white dwarf companion are members of a larger resolved proper motion system including the B9V star 17 Dra A (HD150117). The white dwarf must have evolved from a progenitor more massive than this star, MMS ≈ 3.7M . White dwarf companions to B stars are important since they set an observational limit on the maximum mass for white dwarf progenitors, and can potentially be used to investigate the high mass ends of the initial-final mass relation and the white dwarf mass-radius relation.
ISSN: 0004-6361
eISSN: 1432-0746
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Creative Commons “Attribution Non-Commercial No Derivatives” licence CC BY-NC-ND, further details of which can be found via the following link: Archived with reference to SHERPA/RoMEO and publisher website.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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