Results 131 to 140 of about 4,214,854 (199)

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). VII. A Tomographic View of Far-infrared and Radio Polarimetric Observations through MHD Simulations of Galaxies

The Astrophysical Journal
The structure of magnetic fields in galaxies remains poorly constrained, despite the importance of magnetism in the evolution of galaxies. Radio synchrotron and far-infrared (FIR) polarization and polarimetric observations are the best methods to measure
Sergio Martin-Alvarez, Enrique Lopez-Rodriguez, Tara Dacunha, Susan E. Clark, Alejandro S. Borlaff, Rainer Beck, Francisco Rodríguez Montero, Seoyoung L. Jung, Julien Devriendt, Adrianne Slyz, Julia Christine Roman-Duval, Evangelia Ntormousi, Mehrnoosh Tahani, Kandaswamy Subramanian, Daniel A. Dale, Pamela M. Marcum, Konstantinos Tassis, Ignacio del Moral-Castro, Le Ngoc Tram, Matt J. Jarvis   +19 more
doaj   +1 more source

Propagation of high-energy cosmic rays in extragalactic turbulent magnetic fields: resulting energy spectrum and composition

, 2007
15 pages, 20 figuresWe extend previous studies of mixed-composition extragalactic cosmic-ray source models, by investigating the influence of a non-negligible extragalactic magnetic field on the propagated cosmic-ray spectrum and composition.
D. Allard, N. Globus, Globus, N., Parizot, E., E. Parizot, Allard, D.   +5 more
core   +1 more source

CHANG-ES. XXXV. Cosmic Ray Transport and Magnetic Field Structure of NGC 3556 at 3 GHz

The Astrophysical Journal
Radio halos of edge-on galaxies are crucial for investigating cosmic ray propagation and magnetic field structures in galactic environments. We present VLA C-configuration S -band (2–4 GHz) observations of the spiral galaxy NGC 3556, a target from the ...
Jianghui Xu, Yang Yang, Jiang-Tao Li, Guilin Liu, Judith Irwin, Ralf-Jürgen Dettmar, Michael Stein, Theresa Wiegert, Q. Daniel Wang, Jayanne English   +9 more
doaj   +1 more source

Constraints on the extragalactic magnetic fields from the NVSS Faraday rotation measures

, 2015
We use rotation measures data from the NVSS catalogue to derive new, statistically robust, upper limits on the strength of extragalactic magnetic fields.
Urban, Federico, Pshirkov, Maxims, Tiniakov, Petr   +2 more
core  

Statistics of Gas Density, Velocity, and Magnetic Fields in Cool-core Galaxy Clusters

The Astrophysical Journal
Understanding turbulence within the intracluster medium of galaxy clusters is pivotal for comprehending their evolution and dynamics. Employing 3D magnetohydrodynamic simulations of galaxy cluster mergers, we examine the statistical properties of gas ...
Yue Hu, Alex Lazarian, Gianfranco Brunetti, John A. ZuHone   +3 more
doaj   +1 more source

China's 'sky eye': exploring the universe by measuring faint cosmic radio signals. [PDF]

Natl Sci Rev, 2023
Zhao W.
europepmc   +1 more source

Propagation of Ultra-High Energy Cosmic Rays in Extragalactic Magnetic Fields

Open Physics, 2004
Wibig Tadeusz
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

The diffuse gamma-ray flux from clusters of galaxies. [PDF]

Nat Commun, 2023
Hussain S, Alves Batista R, de Gouveia Dal Pino EM, Dolag K.   +3 more
europepmc   +1 more source

Polarized accretion shocks from the cosmic web. [PDF]

Sci Adv, 2023
Vernstrom T, West J, Vazza F, Wittor D, Riseley CJ, Heald G.   +5 more
europepmc   +1 more source