Results 41 to 50 of about 1,505 (162)
Magnetic fields in barred galaxies [PDF]
Astronomy & Astrophysics, 2007 We present a model of the global magnetic field in the barred galaxy NGC 1365 based jointly on the large-scale velocity field of interstellar gas fitted to HI and CO observations of this galaxy and on mean-field dynamo theory. The aim of the paper is to present a detailed quantitative comparison of a galactic dynamo model with independent radio ...
Moss D +5 more
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The Magnetic Field in Edge-On Galaxies [PDF]
Symposium - International Astronomical Union, 1990 We observed the linearly polarized emission of the edge-on galaxies NGC891 and NGC4631 in order to determine the magnetic field structure.
E. Hummel, M. Dahlem
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The Huge Magnetic Toroids in the Milky Way Halo
The Astrophysical JournalThe magnetic fields in our Milky Way can be revealed by the distribution of Faraday rotation measures (RMs) of radio sources behind the Galaxy and of radio pulsars inside the Galaxy. Based on the antisymmetry of the Faraday sky in the inner Galaxy to the
J. Xu, J. L. Han
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Advances in High Energy Physics, 2022 In this paper, we have investigated the density perturbations and cosmological evolution in the FLRW universe in the presence of a cosmic magnetic field, which may be assumed to mimic primordial magnetic fields.
Samarjit Chakraborty, Sarbari Guha
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Galactic magnetic fields and hierarchical galaxy formation [PDF]
Monthly Notices of the Royal Astronomical Society, 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. Estimates of the steady-state strength of the large-scale and turbulent magnetic fields from mean-field and fluctuation dynamo models are used together with ...
Rodrigues LFS +3 more
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Magnetic Field Strengths in the Vicinity of Sgr A* via 18 cm Zeeman Observations
The Astrophysical JournalVery Large Array (VLA) observations of 18 cm OH absorption lines were used to determine the strength of the line-of-sight magnetic field in the Galactic center region. This study is an extension of the VLA OH Zeeman observations of Killeen et al.
K. L. Thompson +2 more
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The Astrophysical JournalUnderstanding the role that magnetic fields play on the stage of galaxy formation requires accurate methods for inferring the properties of extragalactic magnetic fields.
Tara Dacunha +3 more
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Star Formation Variability as a Probe for the Baryon Cycle within Galaxies
The Astrophysical Journal, 2023 We investigate the connection between the regulation of star formation and the cycling of baryons both within and in and out of galaxies. We use idealized numerical simulations of Milky Way–mass galaxies, in which we vary the galaxy morphology and ...
Eun-jin Shin +4 more
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MAGNETIC FIELDS IN COSMOLOGICAL SIMULATIONS OF DISK GALAXIES [PDF]
The Astrophysical Journal, 2014 Observationally, magnetic fields reach equipartition with thermal energy and cosmic rays in the interstellar medium of disk galaxies such as the Milky Way. However, thus far cosmological simulations of the formation and evolution of galaxies have usually neglected magnetic fields.
Pakmor R, Marinacci F, Springel V
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