New White Dwarf-Brown Dwarf Binaries

Bibcode
2017ASPC..509..133C
Casewell, S. L.; Geier, S.; Lodieu, N.
Bibliographical reference

20th European White Dwarf Workshop, Proceedings of a conference held at University of Warwick, Coventry, West Midlands, United Kingdom, 25-29 July 2016. Edited by Pier-Emmanuel Tremblay, Boris Gänsicke, and Tom Marsh. ASP Conference Series, Vol. 509. San Francisco: Astronomical Society of the Pacific, 2017, p.133

Advertised on:
3
2017
Number of authors
3
IAC number of authors
1
Citations
3
Refereed citations
3
Description
We present follow-up spectroscopy to 12 candidate white dwarf-brown dwarf binaries. We have confirmed that 8 objects do indeed have a white dwarf primary (7 DA, 1 DB) and two are hot subdwarfs. We have determined the Teff and log g for the white dwarfs and subdwarfs, and when combining these values with a model spectrum and the photometry, we have 3 probable white dwarf-substellar binaries with spectral types between M6 and L6.
Type
Non-refereed

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