A NUMERICAL METHOD FOR STUDYING SUPER-EDDINGTON MASS TRANSFER IN DOUBLE WHITE DWARF BINARIES
نویسندگان
چکیده
منابع مشابه
Cygnus X - 2 , super - Eddington mass transfer , and pulsar binaries
We consider the unusual evolutionary state of the secondary star in Cygnus X-2. Spectroscopic data give a low mass (M 2 ≃ 0.5 − 0.7M ⊙) and yet a large radius (R 2 ≃ 7R ⊙) and high luminosity (L 2 ≃ 150L ⊙). We show that this star closely resembles a remnant of early massive Case B evolution, during which the neutron star ejected most of the ∼ 3M ⊙ transferred from the donor (initial mass M 2i ...
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We consider the unusual evolutionary state of the secondary star in Cygnus X-2. Spectroscopic data give a low mass (M 2 ' 0:5 ? 0:7M) and yet a large radius (R 2 ' 7R) and high luminosity (L 2 ' 150L). We show that this star closely resembles a remnant of early massive Case B evolution, during which the neutron star ejected most of the 3M transferred from the donor (initial mass M 2i 3:6M) on i...
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The evolution of binaries consisting of evolved main sequence stars (1 < Md/ M⊙ < 3.5) with white dwarf companions (0.7 < Mwd/ M⊙ < 1.2) is investigated through the thermal mass transfer phase. Taking into account the stabilizing effect of a strong, optically thick wind from the accreting white dwarf surface, we have explored the formation of several evolutionary groups of systems for progenito...
متن کاملCygnus X-2, super-Eddington accretion, and pulsar binaries
We consider the unusual evolutionary state of the secondary star in Cygnus X-2. Spectroscopic data give a low mass (M2 ≃ 0.5− 0.7M⊙) and yet a large radius (R2 ≃ 7R⊙) and high luminosity (L2 ≃ 150L⊙). We show that this star closely resembles a remnant of early massive Case B evolution, during which the neutron star ejected most of the ∼ 2M⊙ transferred from the donor (initial mass M2i ∼ 3.6M⊙) ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2012
ISSN: 0067-0049,1538-4365
DOI: 10.1088/0067-0049/199/2/35