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118 papers · 1 filter
A one-dimensional Vlasov-Maxwell equilibrium for the force-free Harris sheet
Michael G. Harrison, Thomas Neukirch
In this paper the first non-linear force-free Vlasov-Maxwell equilibrium is presented. One component of the equilibrium magnetic field has the same spatial structure as the Harris…
The influence of multiple stars on the high-mass stellar initial mass function and age-dating of young massive star clusters
C. Weidner, P. Kroupa, T. Maschberger
The study of young stellar populations has revealed that most stars are in binary or higher order multiple systems. In this study the influence on the stellar initial mass function…
An ecological approach to problems of Dark Energy, Dark Matter, MOND and Neutrinos
HongSheng Zhao
Modern astronomical data on galaxy and cosmological scales have revealed powerfully the existence of certain dark sectors of fundamental physics, i.e., existence of particles and f…
Activity and rotation of low mass stars in young open clusters
Andreas Seifahrt, Ansgar Reiners, Aleks Scholz +1
We present first results from a multi-object spectroscopy campaign in IC2602, the Hyades, the Pleiades, and the Coma cluster using VLT/FLAMES. We analysed the data for radial veloc…
Stellar mass ejections
M. Jardine, J. -F. Donati, S. G. Gregory
It has been known for some time now that rapidly-rotating solar-like stars possess the stellar equivalent of solar prominences. These may be three orders of magnitude more massive…
Magnetic coronae of active main-sequence stars
M. Jardine, J. -F. Donati
The coronal structure of main sequence stars continues to puzzle us. While the solar corona is relatively well understood, it has become clear that even stars of the same mass as t…