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19922026
Showing 2003 · astro-phShow all

8 papers · 2 filters

astro-ph2003★ 117 cited

The magnetic field of M31 from multi-wavelength radio polarization observations

A. Fletcher, E. M. Berkhuijsen, R. Beck +1

The configuration of the regular magnetic field in M31 is deduced from radio polarization observations at the wavelengths 6, 11 and 20 cm. By fitting the observed azimuthal distrib…

astro-ph2003★ 13 cited

Non-local effects in the mean-field disc dynamo. I. An asymptotic expansion

Vladimir Priklonsky, Anvar Shukurov, Dmitry Sokoloff +1

We reconsider thin-disc global asymptotics for kinematic, axisymmetric mean-field dynamos with vacuum boundary conditions. Non-local terms arising from a small but finite radial fi…

astro-ph2003★ 3 cited

Non-local effects in the mean-field disc dynamo. II. Numerical and asymptotic solutions

Ashley P. Willis, Anvar Shukurov, Andrew Soward +1

The thin-disc global asymptotics are discussed for axisymmetric mean-field dynamos with vacuum boundary conditions allowing for non-local terms arising from a finite radial compone…

astro-ph2003★ 160 cited

Systematic bias in interstellar magnetic field estimates

Rainer Beck, Anvar Shukurov, Dmitry Sokoloff +1

Faraday rotation of the polarization plane in magnetized thermal plasma provides one of the most efficient methods to deduce regular magnetic fields from radio astronomical observa…

astro-ph2003★ 2 cited

Self-regulating supernova heating in interstellar medium simulations

Graeme R. Sarson, Anvar Shukurov, Aake Nordlund +2

Numerical simulations of the multi-phase interstellar medium have been carried out, using a 3D, nonlinear, magnetohydrodynamic, shearing-box model, with random motions driven by su…

astro-ph2003

Outflows from dynamo-active protostellar accretion discs

Brigitta von Rekowski, Axel Brandenburg, Wolfgang Dobler +1

An axisymmetric model of a cool, dynamo-active accretion disc is applied to protostellar discs. Thermally and magnetically driven outflows develop that are not collimated within 0.…