... outcome of the evolution of two stars in a detached binary is a pair of white dwarfs ... origin is whether they are the products of single-star or binary-star evolution ... stars Second star becomes a ... and then a helium white dwarf The binary orbit ...
... stars is whether they are the products of single-star or binary-star evolution ... binary white dwarf' hypothesis for the progenitors of low-luminosity extreme helium ... c 0000 RAS, MNRAS 000, 1{15 Merged binary white dwarf evolution 7 helium stars ...
... Stellar Astrophysics: including hot stars, massive stars, stellar winds, degenerate and helium stars, asteroseismology, studies of binarystars (including their origins, physical properties, population studies, and the physical properties of ultra-compact ...
... and crosses are dwarf single stars and unresolved binaries respectively with radii ... stars in Fig. 1, where they have been plotted with lled squares and crosses (for the ...
... We discovered two He-weak stars, and a binary system where the hotter component is a ... without taking into account the double line spectroscopic binaries (SB2) stars ...
... of RS CVn binaries have been compared with inactive field stars of the same spectral ... that measurements of Li abundance in binarystars with components of unequal mass ... The triangle is the K star, HD165341, the only close binary in our sample. ...
... 23/03/09 White dwarf fields Magnetic fields have been found in over 50 isolated white dwarfs, and over 40 cataclysmic variable binaries These stars span a range in field strength from some kG to (probably) around 1000 MG They are either unvarying, or vary ...
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Ссылки http://star.arm.ac.uk/lectures/landstreet/slides/Lecture-7-mhd-and-fields-of-white-dwarfs.pdf -- 1916.0 Кб -- 23.03.2009 Похожие документы