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Metal Abundances in the Hottest Known DO White Dwarf (KPD 0005+5106)We performed a new analysis of UV and optical spectra of KPD 0005+5106. We find T(sub eff) = 200000 +/- 20000 K, log(g) = 6.7+/-0.3, M =.64 Stellar mass and logL/L = 3.7. The mass fractions of the metals are in the range 0.7 - 4.3 times solar. This abundance pattern is probably unaffected by gravitational settling and radiative levitation, hence, its origin lies in previous evolutionary stages. We speculate about a link of KPD 0005+5106 to the RCrB stars and its possible outcome of a double-degenerate merger event. Keywords: White dwarfs, atmospheres, abundances
Document ID
20110020824
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
External Source(s)
doi:10.1063/1.3527782
Authors
Wassermann, Daniel (Institute for Astronomy and Astrophysics Tuebingen, Germany)
Werner, Klaus (Institute for Astronomy and Astrophysics Tuebingen, Germany)
Rauch, Thomas (Institute for Astronomy and Astrophysics Tuebingen, Germany)
Kurk, Jeffrey W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2010
Publication Information
Publication: AIP Conference Proceedings
Volume: 1273
Subject Category
Astronomy
Report/Patent Number
GSFC.ABS.5307.2011
Report Number: GSFC.ABS.5307.2011
Meeting Information
Meeting: 17th European White Dwarf Workshop
Location: Tuebingen
Country: Germany
Start Date: August 16, 2010
End Date: August 20, 2010
Sponsors: American Inst. of Physics
Distribution Limits
Public
Copyright
Public Use Permitted.

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