The Roche potential in a close binary star
18.1 Close Binary Star Systems
... 18.2.1 Single Degenerate Scenario The single degenerate scenario involves an evolving star transferring mass onto the surface of a white dwarf companion as in Figure 18.5. The current view among astronomers who ...
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The quasi-Roche lobe overflow state in the evolution of close binary systems containing a radio pulsar
... of close binary systems formed by a normal (solar composition), intermediate-mass-donor star together with a neutron ...as binary radio ...a Roche lobe overflow (RLOF) state or in a ...
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Kepler-14b: A massive hot Jupiter transiting an F star in a close visual binary
... The close angular separation of this physically associated vi- sual companion makes it essentially undetectable spectroscop- ically: the RV similar to the main star means the spectrum is effectively ...
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Evolution of Close Binary Systems
... Mass Transfer Binaries • Think about the continued evolution of Algol and you have the explanation for novae. • If the original primary transfers most of its mass to the original secondary, you are left with a massive ...
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Binary Neutron Star Mergers
... 6.4.4 Binary eccentricity The effects of binary eccentricity on NS-NS mergers was recently studied by the Jena group ...first close passage and the second, during which the two NS merged, the GW ...
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On the evolution of massive close binary systems
... massive close binary systems ...massive close binary system can remove part of the matter flowing from one towards the other star during a mass transfer ...a binary system ...
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OGLE 2014 BLG 1186 : gravitational microlensing providing evidence for a planet orbiting the foreground star or for a close binary source?
... source star, we find that considering the finite size of the star successfully removes the previously found problem with the wrong slope over the second ...source star has little effect on the first ...
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OGLE-2014-BLG-1186: gravitational microlensing providing evidence for a planet orbiting the foreground star or for a close binary source?
... a binary lens or a binary source. Our binary-lens models indicate a planet of mass M 2 = (45 ± 9) M ⊕ , orbiting a star of mass M 1 = ...our binary-source models suggest a brown-dwarf ...
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Close binary progenitors of gamma-ray bursts
... in close massive binaries in the context of the collapsar model of ...a binary with the smallest possible orbital separation, the spin parameter of the WR star is relatively high, a s ≃ 6, and one ...
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Roche tomography of cataclysmic variables - III. Star-spots on AE Aqr
... primary star in the contact binary AE Phe returned a spot filling factor of ∼5 per ...small star-spots, which will certainly be the case for the lower signal-to-noise ratio data set presented in this ...
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The primordial binary population. I. A near-infrared adaptive optics search for close visual companions to A star members of Scorpius OB2
... detect close companions to Hipparcos members in the three subgroups of the nearby OB association Sco OB2: Upper Scorpius (US), Upper Centaurus Lupus (UCL) and Lower Centaurus Crux ...Companion star masses ...
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The formation of high mass binary star systems
... Our simple model shows that magnetic braking can reduce the specific angular momentum of infalling gas allowing accretion to form high-mass close binary systems. We envision this occurri[r] ...
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On the progenitor of binary neutron star merger GW170817
... from binary neutron star (BNS) birth to the merger time, accounting for pre-SN galactic motion, for considerably different input distributions of the progenitor mass, pre-SN semimajor axis, and SN-kick ...
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Interrupted Binary Mass Transfer in Star Clusters
... binaries: close – binaries: general – galaxies: star clusters: general – globular clusters: general – open clusters and associations: general – stars: kinematics and dynamics ...INTRODUCTION Binary ...
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Transformation of a Star into a Planet in a Millisecond Pulsar Binary.
... is close to the Roche Lobe ...the binary was a face-on analogue of PSR J2051−0827 we might expect to see a star at the location of the pulsar because the R-band magnitude of the binary ...
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Implications of Binary Properties for Theories of Star Formation
... stars, close encounters between the stars in a forming multiple system will produce large perturbations in their orbital motions, and these perturbations will on the average tend to make the closer subsystems more ...
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THE EFFECT OF PEBBLE ACCRETION ON A CLOSE-CONTACT BINARY SYSTEM
... At a certain point planetesimals become large enough x co is within the Hill-radius of the massive body. At that point, the effect of the Hill-sphere is clearly seen. In 5(e) there is a more detailed view of two pebbles ...
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Understanding the evolution of close binary systems with radio pulsars
... of close binary systems (CBSs) formed by a neutron star (behaving as a radio pulsar) and a normal donor star, which evolve either to a helium white dwarf (HeWD) or to ultra-short orbital ...
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Roche tomography of cataclysmic variables - IV. Star-spots and slingshot prominences on BV Cen
... position close to the centre-of-mass of the binary at a point between the donor star and white dwarf where such illumination is most ...mary star which we do not ...
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Roche tomography of cataclysmic variables IV, Star spots and slingshot prominences on BV Cen
... a close binary ...a close binary system containing an early to mid G-type star and later-type ...the binary na- ture of HD 220492 was missed by the Geneva-Copenhagen survey of ...
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