Henk C. Spruit

TL;DR: In this article, the authors present the first stellar evolution calculations to follow the evolution of rotating massive stars including, at least approximately, all these effects, magnetic and nonmagnetic, from the zero-age main sequence until the onset of iron-core collapse.

TL;DR: In this paper, the authors present the first stellar evolution calculations to follow the evolution of rotating massive stars including, at least approximately, all these effects, magnetic and non-magnetic, from the zero-age main sequence until the onset of iron core collapse.

TL;DR: In this article, the authors investigated the effect of local magnetic dissipation processes in Poynting flux-powered GRBs and found that for typical GRB parameters (energy and baryon loading) the dissipation takes place mainly outside the pho-tosphere, producing non-thermal radiation.

TL;DR: Detailed analysis of small output variations in the Sun's total energy output has greatly advanced understanding, and this new understanding indicates that brightening of the Sun is unlikely to have had a significant influence on global warming since the seventeenth century.

TL;DR: In this paper, the authors considered possible geometries of magnetic fields in GRB outflows and their evolution with distance from the source, and showed that magnetic field strengths are sufficient for efficient production of γ-rays by synchrotron emission in the standard internal shock scenario, without the need for local generation of small scale fields.