H
Henk C. Spruit
Researcher at Max Planck Society
Publications - 89
Citations - 6117
Henk C. Spruit is an academic researcher from Max Planck Society. The author has contributed to research in topics: Magnetic field & Magnetohydrodynamics. The author has an hindex of 37, co-authored 89 publications receiving 5735 citations. Previous affiliations of Henk C. Spruit include ASTRON & Maine Principals' Association.
Papers
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Journal ArticleDOI
Efficient acceleration and radiation in Poynting flux powered GRB outflows
G. Drenkhahn,Henk C. Spruit +1 more
TL;DR: In this paper, the effects of magnetic energy release by local magnetic dissipation processes in Poynting flux-powered GRBs are investigated, and the authors demonstrate these effects with numerical one-dimensional steady relativistic MHD calculations.
Journal ArticleDOI
A binary merger origin for inflated hot Jupiter planets
TL;DR: In this paper, the authors hypothesize that hot Jupiters with inflated sizes represent a separate planet formation channel, the merging of two low-mass stars, and show that the abundance and properties of W UMa stars and low mass detached binaries are consistent with their being possible progenitors.
Proceedings ArticleDOI
Design and results of the fast timing photo-polarimeter OPTIMA
Gottfried Kanbach,Stefan Kellner,F. Schrey,Helmut Steinle,Christian Straubmeier,Henk C. Spruit +5 more
TL;DR: OPTIMA as mentioned in this paper is a high-speed photometer, designed as a sensitive, portable detector to observe optical pulsars and other highly variable sources, which contains eight fiber fed avalanche photodiode single photon counters, a GPS timing receiver, a CCD camera for target acquisition and a computerized control unit.
Journal ArticleDOI
Instability of mass transfer in a planet–star system
Shi Jia,Henk C. Spruit +1 more
TL;DR: In this article, it was shown that the angular momentum exchange mechanism governing the evolution of mass transferring binary stars does not apply to Roche-lobe filling planets, because most angular momentum of the mass transferring stream is absorbed by the host star.
Journal ArticleDOI
Convective settling in main sequence stars: Li and Be depletion
R. Andrássy,Henk C. Spruit +1 more
TL;DR: In this article, a parametric model of convective settling is proposed to investigate the dependence of Li and Be depletion on stellar mass and age, and the model is generally in good agreement with the Li abundances measured in open clusters and solar twins.