Search Results - "SPRUIT, H. C"

Presupernova Evolution of Differentially Rotating Massive Stars Including Magnetic Fields by Heger, A, Woosley, S. E, Spruit, H. C

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MHD Simulations of Penumbra Fine Structure by Heinemann, T, Nordlund, Å, Scharmer, G. B, Spruit, H. C

“…We present the results of numerical 3D magnetohydrodynamic (MHD) simulations with radiative energy transfer of fine structure in a small sunspot of about 4 Mm…”
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Magnetic flux captured by an accretion disk by SPRUIT, H. C, UZDENSKY, Dmitri A

“…We suggest a possible mechanism of efficient transport of the large-scale external magnetic flux inward through a turbulent accretion disk. The outward drift…”
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Rapid optical and X-ray timing observations of GX 339−4: multicomponent optical variability in the low/hard state by Gandhi, P., Dhillon, V. S., Durant, M., Fabian, A. C., Kubota, A., Makishima, K., Malzac, J., Marsh, T. R., Miller, J. M., Shahbaz, T., Spruit, H. C., Casella, P.

“…A rapid timing analysis of Very Large Telescope (VLT)/ULTRACAM (optical) and RXTE (X-ray) observations of the Galactic black hole binary GX 339−4 in the…”
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Solar Surface Magnetism and Irradiance on Time Scales from Days to the 11-Year Cycle by Domingo, V., Ermolli, I., Fox, P., Fröhlich, C., Haberreiter, M., Krivova, N., Kopp, G., Schmutz, W., Solanki, S. K., Spruit, H. C., Unruh, Y., Vögler, A.

“…The uninterrupted measurement of the total solar irradiance during the last three solar cycles and an increasing amount of solar spectral irradiance…”
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Rapid optical and X-ray timing observations of GX 339-4: flux correlations at the onset of a low/hard state by Gandhi, P., Makishima, K., Durant, M., Fabian, A. C., Dhillon, V. S., Marsh, T. R., Miller, J. M., Shahbaz, T., Spruit, H. C.

“…We present the discovery of optical/X-ray flux correlations on rapid time-scales in the low/hard state of the Galactic black hole GX 339-4. The source had…”
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Correlated fast X-ray and optical variability in the black-hole candidate XTE J1118+480 by Spruit, H. C, Kanbach, G, Straubmeier, C, Belloni, T

“…Black holes become visible when they accrete gas, a common source of which is a close stellar companion. The standard theory for this process (invoking a 'thin…”
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Origin of the torsional oscillation pattern of solar rotation by Spruit, Hc

“…A model is presented that explains the `torsional oscillation' pattern of deviations in the solar rotation rate as a geostrophic flow. The flow is driven by…”
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Disruption of a Planet Spiraling into its Host Star by Jia, Shi, Spruit, H. C.

“…The processes leading to the deformation and destruction of planets spiraling into the convective envelope of their host stars are described. The planet is…”
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Instability of mass transfer in a planet–star system by Jia, Shi, Spruit, H C

“…We show that the angular momentum exchange mechanism governing the evolution of mass-transferring binary stars does not apply to Roche lobe filling planets,…”
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Circumbinary Disks and Cataclysmic Variable Evolution by Spruit, H. C, Taam, Ronald E

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Excess mid-infrared emission in cataclysmic variables by Dubus, G., Campbell, R., Kern, B., Taam, R. E., Spruit, H. C.

“…We present a search for excess mid-infrared emission due to circumbinary (CB) material in the orbital plane of cataclysmic variables (CVs). Our motivation…”
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The Evolution of Cataclysmic Variable Binary Systems with Circumbinary Disks by Taam, Ronald E, Spruit, H. C

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Stability of accretion discs threaded by a strong magnetic field by Stehle, R., Spruit, H. C.

“…We study the stability of poloidal magnetic fields anchored in a thin accretion disc. The two-dimensional hydrodynamics in the disc plane is followed by a…”
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The Structure and Evolution of Circumbinary Disks in Cataclysmic Variable Systems by Dubus, Guillaume, Taam, Ronald E, Spruit, H. C

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Bolometric Light Curves of Supernovae and Postexplosion Magnetic Fields by Ruiz-Lapuente, P, Spruit, H. C

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Modeling the Subsurface Structure of Sunspots by Moradi, H., Baldner, C., Birch, A. C., Braun, D. C., Cameron, R. H., Duvall, T. L., Gizon, L., Haber, D., Hanasoge, S. M., Hindman, B. W., Jackiewicz, J., Khomenko, E., Komm, R., Rajaguru, P., Rempel, M., Roth, M., Schlichenmaier, R., Schunker, H., Spruit, H. C., Strassmeier, K. G., Thompson, M. J., Zharkov, S.

“…While sunspots are easily observed at the solar surface, determining their subsurface structure is not trivial. There are two main hypotheses for the…”
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The stream impact region in the disc of WZ Sge by Spruit, H. C., Rutten, R. G. M.

“…We report the observation of new features in the spectrum of the cataclysmic variable WZ Sge. The disc eclipse is seen as a well-defined structure in the Hα…”
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The magnetosphere of an oscillating neutron star. Non-vacuum treatment by Timokhin, A. N., Bisnovatyi-Kogan, G. S., Spruit, H. C.

“…We generalize a formula for the Goldreich–Julian charge density (ρGJ), originally derived for a rotating neutron star, for arbitrary oscillations of a neutron…”
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On magnetic braking of late-type stars by Mestel, L., Spruit, H. C.

“…The paper reports on a preliminary study of the variation with angular velocity of the rate of braking of a late-type star. The strength of the dynamo-built…”
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