Rx J0648.0-4418: the Fastest-Spinning White Dwarf

Date Issued
2015
Author(s)
DOI
Abstract
HD 49798/RX J0648.0-4418 is a post common-envelope X-ray binary composed of a hot subdwarf and one of the most massive white dwarfs with a dynamical mass measurement (1.28±0.05 M☉). This white dwarf, with a spin period of 13.2 s, rotates more than twice faster than the white dwarf in the cataclysmic variable AE Aqr. The current properties of these two binaries, as well as their future evolution, are quite different, despite both contain a fast-spinning white dwarf. HD 49798/RX J0648.0-4418 could be the progenitor of either a Type Ia supernova or of a non-recycled millisecond pulsars.

Coverage
Proceedings of the MG13 Meeting on General Relativity, Astrophysics, and Relativistic Field Theories
All editors
Rosquist, Kjell; Jantzen, Robert T.; Ruffini, Remo
Start page
2459
Conferenece
Thirteenth Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
Conferenece place
Stockholm University, Sweden
Conferenece date
1-7 July, 2012
Uri
Url
Ads BibCode
2015mgm..conf.2459M
Rights
open.access
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proc_HD_MG13.pdf

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preprint
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65.29 KB

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Adobe PDF

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