Results 11 to 20 of about 3,496,469 (217)

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., Schleicher, Dominik Reinhold Georg   +1 more
openaire   +5 more sources

Exploring Magnetic Fields in a Merging Galaxy: Comparing Polarization and Velocity Gradient in the Centaurus Galaxy

The Astrophysical Journal
In this study, we apply the velocity gradient technique to the merging Centaurus galaxy. We compare gradient maps derived from the PHANGS-Atacama Large Millimeter/submillimeter Array survey using CO emission lines with magnetic field tracings from dust ...
Quynh Lan Nguyen, Yue Hu, Alex Lazarian
doaj   +2 more sources

Magnetic fields in galaxies [PDF]

Proceedings of the International Astronomical Union, 2005
AbstractThe origin and evolution of magnetic fields in the Universe is a cosmological problem. Although exotic mechanisms for magneotgenesis cannot be ruled out, galactic magnetic fields could have been seeded by magnetic fields from stars and accretion disks, and must be continuously regenerated due to the ongoing replacement of the interstellar ...
openaire   +3 more sources

Origin of magnetic fields in galaxies [PDF]

Physical Review D, 2010
10 pages, 3 ...
de Souza, Rafael S., Opher, R.
openaire   +2 more sources

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
openaire   +1 more source

Magnetic fields and relativistic electrons fill entire galaxy cluster [PDF]

, 2022
The hot plasma within merging galaxy clusters is predicted to be filled with shocks and turbulence that may convert part of their kinetic energy into relativistic electrons and magnetic fields generating synchrotron radiation.
Di Gennaro, G., Botteon, A., de Gasperin, Francesco, Röttgering, H. J., Vazza, Franco, Cuciti, Virginia, Di Gennaro, Gabriella, Dallacasa, D., Weeren, R. J. van, Botteon, Andrea, Brüggen, Marcus, Bonafede, Annalisa, van Weeren, R. J., Röttgering, H. J. A., van Weeren, Reinout J, van Weeren, Reinout J., de Gasperin, F., Di Gennero, G., Dallacasa, Daniele, Cassano, R., Cassano, Rossella, Shimwell, T. W., Akamatsu, Hiroki, Bonafede, A., Cuciti, V., Gasperin, F. de, Röttgering, Huub J. A., Vazza, F., Shimwell, Timothy W., Brüggen, M., Akamatsu, H., Gastaldello, F., Gastaldello, Fabio, Shimwell, Timothy W, Röttgering, Huub J A, Brunetti, G., Brunetti, Gianfranco   +36 more
core   +1 more source

SIMULATING MAGNETIC FIELDS IN THE ANTENNAE GALAXIES [PDF]

The Astrophysical Journal, 2010
We present self-consistent high-resolution simulations of NGC4038/4039 (the "Antennae galaxies") including star formation, supernova feedback and magnetic fields performed with the N-body/SPH code Gadget, in which magnetohydrodynamics are followed with the SPH method. We vary the initial magnetic field in the progenitor disks from 1 nG to 100 muG.
Kotarba, H., Karl, S., Naab, T., Johansson, P., Dolag, K., Lesch, H., Stasyszyn, F.   +6 more
openaire   +3 more sources

Magnetic fields in radio relics and in the outskirts of galaxy clusters [PDF]

, 2021
The observation of diffuse synchrotron radio emission in galaxy clusters reveals the existence of relativistic electrons and large-scale magnetic fields permeating the intra-cluster volume.
Stuardi, Chiara <1993>
core   +1 more source

An underlying universal pattern in galaxy halo magnetic fields

, 2021
Magnetic fields in galaxy halos are in general very difficult to observe. Most recently, the Continuum HAlos in Nearby Galaxies – an EVLA Survey (CHANG-ES) Collaboration investigated the radio halos of 35 nearby edge-on spiral galaxies in detail and ...
Ioannis Myserlis, Ioannis Contopoulos, Contopoulos, I., Myserlis, I.   +3 more
core   +1 more source

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).
openaire   +5 more sources