Results 21 to 30 of about 3,496,469 (217)
Galactic magnetic fields and hierarchical galaxy formation [PDF]
, 2015 A framework is introduced for coupling the evolution of galactic magnetic fields sustained by the mean-field dynamo with the formation and evolution of galaxies in cold dark matter cosmology.
Fletcher, A. +3 more
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Magnetic Fields in Galaxies [PDF]
, 2013 Most of the visible matter in the Universe is ionized, so that cosmic magnetic fields are quite easy to generate and due to the lack of magnetic monopoles hard to destroy. Magnetic fields have been measured in or around practically all celestial objects, either by in-situ measurements of spacecrafts or by the electromagnetic radiation of embedded ...
Rainer Beck, Richard Wielebinski
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The Sun's global photospheric and coronal magnetic fields : observations and models [PDF]
, 2012 2012LRSP....9....6M Funding: STFC, the Leverhulme Trust and European Commission’s Seventh Framework Programme (FP7/2007-2013) under the grant agreement SWIFF (project no.
Anthony Yeates +6 more
core +1 more source
The magnetic field in the central parsec of the Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We present a polarisation map of the warm dust emission from the minispiral in the central parsec of the Galactic centre. The observations were made at a wavelength of 12.5 microns with CanariCam mounted on the 10.4-m Gran Telescopio Canarias. The magnetic field traced by the polarised emission from aligned dust grains is consistent with previous ...
Roche, P +4 more
openaire +4 more sources
Magnetic fields in barred galaxies [PDF]
Astronomy & Astrophysics, 2002 The total and polarized radio continuum emission of 20 barred galaxies was observed with the Very Large Array (VLA) at 3, 6, 18 and 22 cm and with the Australia Telescope Compact Array (ATCA) at 6 cm and 13 cm. Maps at 30 arcsec angular resolution are presented here.
Beck R +7 more
openaire +3 more sources
Dynamo in Weakly Collisional Nonmagnetized Plasmas Impeded by Landau Damping of Magnetic Fields [PDF]
, 2020 We perform fully kinetic simulations of flows known to produce dynamo in magnetohydrodynamics (MHD), considering scenarios with low Reynolds number and high magnetic Prandtl number, relevant for galaxy cluster scale fluctuation dynamos.
Brandenburg, Axel, +21 more
core +1 more source
MHD numerical simulations in a cosmological context [PDF]
, 2011 Magnetic fields in the Universe are found in almost all studied environments. In particular, their presence in the inter-galactic medium and in the intra-cluster medium is confirmed by diffuse radio emission as well as by observations of Faraday ...
Stasyszyn, Federico Andrés
core +1 more source
On the Magnetic Fields of Galaxies
Communications of the Byurakan Astrophysical Observatory, 2021 We bring results of some our investigations of magnetic field of our Galaxy and extragalactic radio sources. For the study were used data of Faraday rotation of pulsars and extragalactic radio sources as well as data of physical and morphological properties of more than 500 radio galaxies of different morphological classes.
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The Evolution of Magnetic Fields in Galaxy Clusters [PDF]
Symposium - International Astronomical Union, 2003 Cosmological simulations of magnetic fields in galaxy clusters show that remarkable agreement between simulations and observations of Faraday rotation and radio haloes can be achieved assuming that seed fields of ∼ 10−9 G were present at redshifts ∼ 15−20. The structure of the seed field is irrelevant for the final intracluster field.
Bartelmann, M., Dolag, K., Lesch, H.
openaire +3 more sources
The halo magnetic field of a spiral galaxy at z = 0.414
Astronomy & AstrophysicsAims. Even though magnetic fields play an important role in galaxy evolution, the redshift evolution of galactic-scale magnetic fields is not well constrained observationally.
Kovacs Timea Orsolya +4 more
doaj +1 more source