Abstract

view Abstract Citations (201) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Ultrashort-Period Binaries. II. HZ 29 (=AM CVn): a Double-White-Dwarf Semidetached Postcataclysmic Nova? Faulkner, John ; Flannery, Brian P. ; Warner, Brian Abstract The peculiar white dwarf HZ 29 is in fact an eclipsing binary system with P∼1051.05 secs (∼ 17.5 mins). A hydrogen-containing secondary is most unlikely. A satisfactory model has a degenerate helium secondary of mass ∼0.041 M⊙. We suggest this is the remnant core of a nova secondary which has suffered complete envelope mass loss as a result of gravitational radiation angular momentum losses. The separation of components is 10^10 cm, primary orbital velocities appear to be marginally detectable, and the period should be increasing by 1 or 2 parts in 10^8 per annum. Publication: The Astrophysical Journal Pub Date: July 1972 DOI: 10.1086/180989 Bibcode: 1972ApJ...175L..79F full text sources ADS | data products SIMBAD (1) Related Materials (2) Part 1: 1971ApJ...170L..99F Part 3: 1975ApJ...198..435T

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