Results 51 to 60 of about 1,505 (162)
A Linearly Polarized Merger Shock Down to 550 MHz: A uGMRT Study of the Merging Cluster A746
The Astrophysical JournalRadio relics, arc-like polarized sources with highly aligned magnetic fields, are typically found on the outskirts of merging galaxy clusters. The magnetoionic media responsible for the significant coherence observed in radio relics remain poorly ...
Arpan Pal +2 more
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Cosmic axion background propagation in galaxies
Physics Letters B, 2016 Many extensions of the Standard Model include axions or axion-like particles (ALPs). Here we study ALP to photon conversion in the magnetic field of the Milky Way and starburst galaxies. By modelling the effects of the coherent and random magnetic fields,
Francesca V. Day
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Fast Radio Bursts as Probes of Magnetic Fields in Galaxies at z < 0.5
The Astrophysical Journal, 2023 We present a sample of nine fast radio bursts (FRBs) from which we derive magnetic field strengths of the host galaxies represented by normal, z < 0.5 star-forming galaxies with stellar masses M _* ≈ 10 ^8 –10 ^10.5 M _⊙ .
Alexandra G. Mannings +8 more
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PROCESS OF PLANETS’ MAGNETIC FIELDS FORMATION
Electrical engineering & Electromechanics, 2013 Heated melt of the cores of the Sun and the planets is the basis of their permanent magnetic fields that, in interaction with the large-scale magnetic field of the Galaxy, condition on the action of their dynamo mechanisms which, on the basis of the ...
E.V. Savich
doaj
Towards Exascale Simulations of the ICM Dynamo with WENO-Wombat
Galaxies, 2018 In galaxy clusters, modern radio interferometers observe non-thermal radio sources with unprecedented spatial and spectral resolution. For the first time, the new data allows to infer the structure of the intra-cluster magnetic fields on small scales via
Julius Donnert +5 more
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Application of the Disk Instability Model to All Quasiperiodic Eruptions
The Astrophysical Journal, 2023 After the first quasiperiodic eruption (QPE; GSN 069) was reported in 2019, four other sources have been identified as a QPE or a candidate. However, the physics behind QPEs is still unclear, although several models have been proposed.
Xin Pan, Shuang-Liang Li, Xinwu Cao
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Magnetic-Field Vector Maps of Nearby Spiral Galaxies
Galaxies, 2019 We present a method for determining the directions of magnetic-field vectors in a spiral galaxy using two synchrotron polarization maps, an optical image, and a velocity field.
Hiroyuki Nakanishi +2 more
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Star Formation and Magnetic Field Amplification due to Galactic Spirals
The Astrophysical JournalWe use global MHD galaxy simulations to investigate the effects of spiral arms on the evolution of magnetic fields and star formation within a self-regulated interstellar medium.
Hector Robinson +3 more
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Magnetic fields in spiral galaxies [PDF]
Proceedings of the International Astronomical Union, 2012 The magnetic field structure in edge-on galaxies observed so far shows a plane-parallel magnetic field component in the disk of the galaxy and an X-shaped field in its halo. The plane-parallel field is thought to be the projected axisymmetric (ASS) disk field as observed in face-on galaxies.
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Magnetic field in galaxies, galaxy clusters, and intergalactic space [PDF]
Physical Review D, 2005 Magnetic fields of unknown origin appear to permeate the Universe on all large scales. We suggest that the winds and cosmic rays, which are produced by the spherical ejecta and jets from supernova explosions, magnetize the interstellar medium in galaxies, the intracluster medium in galaxy clusters, and the intergalactic space.
Arnon Dar, A. De Rújula
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