Results 21 to 30 of about 1,505 (162)
The Strength of the Sheared Magnetic Field in the Galactic’s Circumnuclear Disk
The Astronomical Journal, 2023 Recent high-resolution 53 μ m polarimetric observations from SOFIA/HAWC+ have revealed the inferred plane-of-the-sky magnetic field ( B -field) orientation in the Galactic center’s circumnuclear disk (CND).
Jordan A. Guerra +4 more
doaj +1 more source
Magnetic fields in barred galaxies [PDF]
Astronomy & Astrophysics, 2001 We study the generation and maintenance of large-scale magnetic fields in barred galaxies. We take a velocity field (with strong noncircular components) from a published gas dynamical simulation of Athanassoula (1992), and use this as input to a galactic dynamo calculation.
Moss D +4 more
openaire +3 more sources
The Galaxy Magnetic Field [PDF]
International Astronomical Union Colloquium, 1977 The origin and dynamics of magnetic fields depend crucially on the dynamics of a gas in the Galaxy. In turn the magnetic field is needed to isotropize the cosmic rays (the influence on chemistry) and is of importance for the formation of stars (local dynamics). Thus the appearance of this topic at the Colloquium is justified.
openaire +1 more source
Magnetic Fields in Young Galaxies [PDF]
Highlights of Astronomy, 2002 AbstractWe have studied the fate of initial magnetic fields in the hot halo gas out of which the visible parts of galaxies form, using three-dimensional numerical MHD-experiments. The halo gas undergoes compression by several orders of magnitude in the subsonic cooling flow that forms the cold disk.
Nordlund, A ., Rognvaldsson, O. E.
openaire +2 more sources
On the Non-Thermal Energy Content of Cosmic Structures
Galaxies, 2016 (1) Background: the budget of non-thermal energy in galaxy clusters is not well constrained, owing to the observational and theoretical difficulties in studying these diluted plasmas on large scales; (2) Method: we use recent cosmological simulations ...
Franco Vazza +3 more
doaj +1 more source
Magnetic Fields in Galaxy Clusters [PDF]
Highlights of Astronomy, 2005 AbstractMagnetic fields in galaxy clusters can be investigated using a variety of techniques. Recent studies including radio halos, Inverse Compton hard X-ray emissions and Faraday rotation measure, are briefly outlined. A numerical approach for investigating cluster magnetic fields strength and structure is presented.
Govoni, Federica, Murgia, Matteo
openaire +2 more sources
Magnetic fields in ring galaxies [PDF]
Astronomy & Astrophysics, 2016 25 pages, 12 ...
Moss, D. +5 more
openaire +4 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
Magnetic Fields in Primordial Galaxies
, 2021 Magnetic fields play a vital role in numerous astrophysical processes such as star formation and the interstellar medium. In particular, their role in the formation and evolution of galaxies is not well understood. This paper presents high-resolution magnetohydrodynamic (MHD) simulations performed with GIZMO to investigate the effect of magnetic fields
Chiu, Huai-Hsuan, Chen, Ke-Jung
openaire +2 more sources
Simulations of the Polarized Sky for the SKA: How to Constrain Intracluster Magnetic Fields
Galaxies, 2018 The advent of the Square Kilometer Array (SKA) will have unprecedented impact on the study of magnetic fields in galaxy clusters. This instrument will be able to perform all-sky surveys in polarization, allowing us to build a rotation-measure (RM) grid ...
Francesca Loi +7 more
doaj +1 more source