Results 21 to 30 of about 2,185 (174)
Magnetic fields in spiral galaxies [PDF]
The Astronomy and Astrophysics Review, 1990 Radio synchrotron emission is a powerful tool to study the strength and structure of magnetic fields in galaxies. Unpolarized synchrotron emission traces isotropic turbulent fields which are strongest in spiral arms and bars (20-30 μG) and in central starburst regions (50-100 μG).
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Cosmic magnetic fields from density perturbations [PDF]
, 2023 reservedMagnetic fields are observed on nearly all scales in the Universe, from stars and galaxies up to galaxy clusters and even beyond. The origin of cosmic magnetic fields remains an open question; however, a large class of models puts its origin in ...
PAVONE, ELISABETTA
core
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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Magnetic fields during galaxy mergers [PDF]
Astronomy & Astrophysics, 2016 Galaxy mergers are expected to play a central role for the evolution of galaxies, and may have a strong impact on their magnetic fields. We present the first grid-based 3D magneto-hydrodynamical simulations investigating the evolution of magnetic fields during merger events. For this purpose, we employ a simplified model considering the merger event of
Rodenbeck, K. +1 more
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Morphology of flows and buoyant bubbles in the Virgo cluster [PDF]
, 2008 There is growing evidence that the active galactic nuclei (AGN) associated with the central elliptical galaxy in clusters of galaxies are playing an important role in the evolution of the intracluster medium (ICM) and clusters themselves.
Pope, Edward C.D. +3 more
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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
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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
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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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Magnetic fields in and around galaxies [PDF]
, 2019 Magnetic fields are an ubiquitous component of our Universe. They are expected to play an important role in the evolution of many astrophysical systems, from molecular clouds to galaxy clusters.
Sergio Martin, Martin, Sergio
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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.
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