English
Related papers

Related papers: Simulations of magnetic fields in filaments

200 papers

We performed cosmological, magneto-hydrodynamical simulations to follow the evolution of magnetic fields in galaxy clusters, exploring the possibility that the origin of the magnetic seed fields are galactic outflows during the star-burst…

Astrophysics · Physics 2009-11-13 J. Donnert , K. Dolag , H. Lesch , E. Müller

Using cosmological MHD simulations of the magnetic field in galaxy clusters and filaments we evaluate the possibility to infer the magnetic field strength in filaments by measuring cross-correlation functions between Faraday Rotation…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 F. Stasyszyn , S. E. Nuza , K. Dolag , R. Beck , J. Donnert

The amplification of primordial magnetic fields via a small-scale turbulent dynamo during structure formation might be able to explain the observed magnetic fields in galaxy clusters. The magnetisation of more tenuous large-scale structures…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 F. Vazza , M. Brüggen , C. Gheller , P. Wang

We review the present theoretical and numerical understanding of magnetic field amplification in cosmic large-scale structure, on length scales of galaxy clusters and beyond. Structure formation drives compression and turbulence, which…

Cosmology and Nongalactic Astrophysics · Physics 2018-11-28 J. Donnert , F. Vazza , M. Brüggen , J. ZuHone

We consider the possibility that cosmic magnetic field, instead of being uniformly distributed, is strongly correlated with the large scale structure of the universe. Then, the observed rotational measure of extra-galactic radio sources…

Astrophysics · Physics 2011-07-19 Dongsu Ryu , Hyesung Kang , Peter L. Biermann

The simulations of the formation of cosmological structure allows to determine the spatial inhomogeneity of cosmic magnetic fields. Such simulations, however, do not give an absolute number for the strength of the magnetic field due to…

Astrophysics · Physics 2007-05-23 Peter L. Biermann , Hyesung Kang , Joerg P. Rachen , Dongsu Ryu

The origin of intergalactic magnetic fields is still a mystery and several scenarios have been proposed so far: among them, primordial phase transitions, structure formation shocks and galactic outflows. In this work we investigate how…

Astrophysics · Physics 2009-11-11 Serena Bertone , Corina Vogt , Torsten Ensslin

We study the effects of galaxy formation physics on the magnetization of the intergalactic medium (IGM) using the IllustrisTNG simulations. We demonstrate that large-scale regions affected by the outflows from galaxies and clusters contain…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-30 Andres Aramburo Garcia , Kyrylo Bondarenko , Alexey Boyarsky , Dylan Nelson , Annalisa Pillepich , Anastasia Sokolenko

An important area of study of cosmic magnetic fields is on the largest scales, those of clusters of galaxies. In the last decade it has become clear that the intra-cluster medium (ICM) in clusters of galaxies is magnetized and that magnetic…

Astrophysics · Physics 2009-11-10 L. Feretti , M. Johnston-Hollitt

Magnetic fields appear to be ubiquitous in astrophysical environments. Their existence in the intracluster medium is established through observations of synchrotron emission and Faraday rotation. On the other hand, the nature of magnetic…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Dongsu Ryu , Dominik R. G. Schleicher , Rudolf A. Treumann , Christos G. Tsagas , Lawrence M. Widrow

The physics of magnetic fields ($\textbf{B}$) and cosmic rays (CRs) have recently been included in simulations of galaxy formation. However, significant uncertainties remain in how these components affect galaxy evolution. To understand…

Theory and simulations suggest that magnetic fields from radio jets and lobes powered by their central super massive black holes can be an important source of magnetic fields in the galaxy clusters. This is paper II in a series of studies…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Hao Xu , Hui Li , David C. Collins , Shengtai Li , Michael L. Norman

Magnetic fields are ubiquitous in the Universe. Extragalactic disks, halos and clusters have consistently been shown, via diffuse radio-synchrotron emission and Faraday rotation measurements, to exhibit magnetic field strengths ranging from…

Magnetic fields are one of most concealed components of the universe. They are observed as part of the intergalactic medium and on galaxy cluster scales, however their origin and evolution is unclear. In this work we use the IllustrisTNG…

Astrophysics of Galaxies · Physics 2023-05-04 Agustín M. Rodríguez-Medrano , Federico A. Stasyszyn , Dante J. Paz , Volker Springel

We use adaptive-mesh magnetohydrodynamic simulations to study the effect of magnetic fields on ram pressure stripping of galaxies in the intracluster medium (ICM). Although the magnetic pressure in typical clusters is not strong enough to…

High Energy Astrophysical Phenomena · Physics 2017-05-31 Rukmani Vijayaraghavan , Paul M. Ricker

We use simulations of LSS formation to study the build-up of magnetic fields (MFs) in the ICM. Our basic assumption is that cosmological MFs grow in a MHD amplification process driven by structure formation out of a seed MF present at high…

Astrophysics · Physics 2010-12-09 Klaus Dolag , Dario Grasso , Volker Springel , Igor Tkachev

The detection of magnetic fields at high redshifts, and in empty intergalactic space, support the idea that cosmic magnetism has a primordial origin. Assuming that Maxwellian electromagnetism and general relativity hold, and without…

General Relativity and Quantum Cosmology · Physics 2015-06-11 J. D. Barrow , C. G. Tsagas , K. Yamamoto

We explore the structure of magnetic field lines in and around filaments in simulations of molecular clouds undergoing global, multi-scale gravitational collapse. In these simulations, filaments are not in a static equilibrium, but are…

Astrophysics of Galaxies · Physics 2018-08-08 Gilberto C. Gomez , Enrique Vazquez-Semadeni , Manuel Zamora-Aviles

We use data from the Evolution and Assembly of GaLaxies in their Environment (EAGLE) cosmological simulation to study properties of galaxies in the cosmic web. Galaxies become more redder and form stars at a lower rate relative to their…

Astrophysics of Galaxies · Physics 2020-07-29 Ankit Singh , Smriti Mahajan , J. S. Bagla

Radio observations of galaxy clusters show that there are $\mu$G magnetic fields permeating the intra-cluster medium (ICM), but it is hard to accurately constrain the strength and structure of the magnetic fields without the help of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Hao Xu , Federica Govoni , Matteo Murgia , Hui Li , David C. Collins , Michael L. Norman , Renyue Cen , Luigina Feretti , Gabriele Giovannini
‹ Prev 1 2 3 10 Next ›