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We experimentally studied the Faraday rotation of resonant light in an optically-thick cloud of laser-cooled rubidium atoms. Measurements yield a large Verdet constant in the range of 200 000 degrees/T/mm and a maximal polarization rotation…

原子物理 · 物理学 2009-11-07 G. Labeyrie , C. Miniatura , R. Kaiser

To study some characteristics of the interstellar medium, observational data of pulsars with large Faraday rotation values (|RM|> 300 rad / m2) were used. It was suggested and justified that large |RM| values can be due to the contribution…

星系天体物理 · 物理学 2018-08-13 R. R. Andreasyan , H. R. Andreasyan , G. M. Paronyan

Non-VLBI measurements of Faraday rotation at mm wavelengths have been used to constrain mass accretion rates ($\mdot$) onto supermassive black holes in the centre of the Milky Way and in the centre of M87. We constructed general…

高能天体物理现象 · 物理学 2017-04-19 Monika Moscibrodzka , Jason Dexter , Jordy Davelaar , Heino Falcke

The Faraday effect, caused by a magnetic-field-induced change in the optical properties, takes place in a vast variety of systems from a single atomic layer of graphenes to huge galaxies. Currently, it plays a pivot role in many…

等离子体物理 · 物理学 2017-10-10 Suming Weng , Qian Zhao , Zhengming Sheng , Wei Yu , Shixia Luan , Min Chen , Lule Yu , Masakatsu Murakami , Warren B. Mori , Jie Zhang

We compute the radius of convergence of the linearized relativistic hydrodynamic expansion around a non-trivially rotating strongly coupled N=4 Super-Yang-Mills plasma. Our results show that the validity of hydrodynamics is sustained and…

高能物理 - 理论 · 物理学 2021-12-22 Casey Cartwright , Markus Garbiso Amano , Matthias Kaminski , Jorge Noronha , Enrico Speranza

Faraday rotation is a valuable tool for detecting magnetic fields. Here the technique is considered in relation to wind-blow bubbles. In the context of spherical winds with azimuthal or split monopole stellar magnetic field geometries, we…

星系天体物理 · 物理学 2015-06-12 Richard Ignace , Nickolas Pingel

We studied Faraday rotation measure (RM) in turbulent media with the rms Mach number of unity, using isothermal, magnetohydrodynamic turbulence simulations. Four cases with different values of initial plasma beta were considered. Our main…

星系天体物理 · 物理学 2014-11-20 Qingwen Wu , Jongsoo Kim , Dongsu Ryu , Jungyeon Cho , Paul Alexander

This is the first of a series of papers devoted to the development of the invariant imbedding theory of mode conversion in inhomogeneous plasmas. A new version of the invariant imbedding theory of wave propagation in inhomogeneous media…

等离子体物理 · 物理学 2009-11-11 Kihong Kim , Dong-Hun Lee

Measurements of the Faraday rotation of the cosmic microwave background radiation (CMBR) polarization could provide evidence for the existence of primordial magnetic fields. The Faraday rotation could also allow the study of some properties…

天体物理学 · 物理学 2009-11-10 L. Campanelli , A. D. Dolgov , M. Giannotti , F. L. Villante

Faraday rotation measure synthesis is a method for analyzing multichannel polarized radio emissions, and it has emerged as an important tool in the study of galactic and extra-galactic magnetic fields. The method requires the recovery of…

宇宙学与河外天体物理 · 物理学 2015-06-03 M. Andrecut , J. M. Stil , A. R. Taylor

Multi-frequency polarimetry with the Very Long Baseline Array (VLBA) telescope has revealed absolute Faraday Rotation Measures (RMs) in excess of 1000 rad/m/m in the central regions of 7 out of 8 strong quasars studied (e.g., 3C 273, 3C…

天体物理学 · 物理学 2009-10-31 G. B. Taylor

Faraday rotation has been seen at millimeter wavelengths in several low luminosity active galactic nuclei, including Event Horizon Telescope (EHT) targets M87* and Sgr A*. The observed rotation measure (RM) probes the density, magnetic…

高能天体物理现象 · 物理学 2020-10-07 Angelo Ricarte , Ben S. Prather , George N. Wong , Ramesh Narayan , Charles Gammie , Michael Johnson

The low-frequency instability of a magnetized plasma column and the anomalous radial plasma convection are shown to be linked with the existence of a radial cross-field current along a plasma channel rotating around the central magnetized…

等离子体物理 · 物理学 2010-11-10 S. Jaeger , Th. Pierre

Faraday rotation measure (RM) synthesis is an important tool to study and analyze galactic and extra-galactic magnetic fields. Since there is a Fourier relation between the Faraday dispersion function and the polarized radio emission, full…

天体物理仪器与方法 · 物理学 2015-05-28 Feng Li , Shea Brown , Tim J. Cornwell , Frank de Hoog

We present an analysis of the magnetic-field fluctuations in the magnetoionic medium in front of the radio galaxy 3C 31 derived from rotation-measure (RM) fits to high-resolution polarization images. We first show that the Faraday rotation…

天体物理学 · 物理学 2007-10-05 R. A. Laing , A. H. Bridle

There is an apparent contradiction in the current literature about the effect of rotation in the quark gluon plasma (QGP). While results from lattice QCD predict an increase in the confinement/deconfinement critical temperature,…

高能物理 - 理论 · 物理学 2025-12-01 Nelson R. F. Braga , Alexsandre L. Ferreira

For the first time it has become possible to compare global 3D general relativistic magnetohydrodynamic (GRMHD) jet formation simulations directly to very-long baseline interferometric multi-frequency polarization observations of the…

高能天体物理现象 · 物理学 2015-05-19 Avery E. Broderick , Jonathan C. McKinney

Faraday rotation measurements have provided an invaluable technique with which to measure the properties of astrophysical magnetized plasmas. Unfortunately, typical observations provide information only about the density-weighted average of…

星系天体物理 · 物理学 2014-11-20 Avery E. Broderick , Roger D. Blandford

Two classes of conservative, linear, optical rotary effects (optical activity and Faraday rotation) are distinguished by their behavior under time reversal. In analogy with coherent perfect absorption, where counterpropagating light fields…

光学 · 物理学 2015-06-04 Michael Crescimanno , Nathan J. Dawson , James H. Andrews

A stationary self-consistent outflow of a magnetised relativistic plasma from a rotating object with an initially monopole-like magnetic field is investigated in the ideal MHD approximation under the condition $\sigma/U_0^2 >1$, where…

天体物理学 · 物理学 2009-11-06 S. Bogovalov