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5 papers · 2 filters
Numerical Simulations of Wind Accretion in Symbiotic Binaries
M. de Val-Borro, M. Karovska, D. Sasselov
We study the dynamical effects of gravitational focusing by a binary companion on winds from late-type stars. In particular, we investigate the mass transfer and formation of accre…
Small-scale magnetic helicity losses from a mean-field dynamo
Axel Brandenburg, Simon Candelaresi, Piyali Chatterjee
Using mean-field models with a dynamical quenching formalism we show that in finite domains magnetic helicity fluxes associated with small-scale magnetic fields are able to allevia…
Dust and the type II-plateau supernova 2004et
Rubina Kotak, Peter Meikle, Duncan Farrah +14
We present mid-infrared (MIR) observations of the Type II-plateau supernova (SN) 2004et, obtained with the {\it Spitzer Space Telescope} between days 64 and 1406 past explosion. La…
The alpha effect with imposed and dynamo-generated magnetic fields
A. Hubbard, F. Del Sordo, P. J. Käpylä +1
Estimates for the nonlinear alpha effect in helical turbulence with an applied magnetic field are presented using two different approaches: the imposed-field method where the elect…
The role of the Yoshizawa effect in the Archontis dynamo
Sharanya Sur, Axel Brandenburg
The generation of mean magnetic fields is studied for a simple non-helical flow where a net cross helicity of either sign can emerge. This flow, which is also known as the Archonti…