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The Structure and Evolution of Circumbinary Disks in Cataclysmic Variable Systems
G. Dubus, R. E. Taam, H. C. Spruit
We investigate the structure and evolution of a geometrically thin viscous Keplerian circumbinary (CB) disk, using detailed models of their radiative/convective vertical structure.…
Disks surrounding Cataclysmic Binaries
H. C. Spruit, R. E. Taam
Observations of Cataclysmic Variables show a number of phenomena that do not fit easily into the standard magnetic braking scenario. These include the large spread in mass transfer…
Hydrodynamical Simulations of the Stream-Core Interaction in the Slow Merger of Massive Stars
N. Ivanova, Ph. Podsiadlowski, H. Spruit
We present detailed simulations of the interaction of a stream emanating from a mass-losing secondary with the core of a massive supergiant in the slow merger of the two stars insi…
A New Class of High-Mass X-ray Binaries: Implications for Core Collapse and Neutron-Star Recoil
E. Pfahl, S. Rappaport, Ph. Podsiadlowski +1
We investigate an interesting new class of high-mass X-ray binaries (HMXBs) with long orbital periods (P_orb > 30 days) and low eccentricities (e <~ 0.2). The orbital parameters su…
Instability of an accretion disk with a magnetically driven wind
Xinwu Cao, H. C. Spruit
We present a linear analysis of the stability of accretion disks in which angular momentum is removed by the magnetic torque exerted by a centrifugally driven wind. The effects of…
X-Ray spectra from protons illuminating a neutron star
B. Deufel, C. P. Dullemond, H. C. Spruit
We consider the interaction of a slowly rotating unmagnetized neutron star with a hot (ion supported, ADAF) accretion flow. The virialized protons of the ADAF penetrate into the ne…