English
Related papers

Related papers: Magnetic field strength from peaked synchrotron sp…

200 papers

Faraday rotation of the polarization plane in magnetized thermal plasma provides one of the most efficient methods to deduce regular magnetic fields from radio astronomical observations. Since the Faraday rotation measure RM is proportional…

Astrophysics · Physics 2009-11-10 Rainer Beck , Anvar Shukurov , Dmitry Sokoloff , Richard Wielebinski

In magnetized capacitively coupled radio-frequency discharges operated at low pressure the influence of the magnetic flux density on discharge properties has been studied recently both by experimental investigations and in simulations. It…

Faraday rotation (FR) is widely used to infer the orientation and strength of magnetic fields in astrophysical plasmas. Although the absence of electron-positron pairs is a plausible assumption in many astrophysical environments, the…

High Energy Astrophysical Phenomena · Physics 2015-05-13 Kiwan Park , E. G. Blackman

We discuss the effect of a strong magnetic field in the behavior of the symmetry of an electrically neutral electroweak plasma. We analyze the case of a strong field and low temperatures as compared with the W rest energy. If the magnetic…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Rodriguez Querts , H. Perez Rojas , A. Perez Martinez

The energy spectrum of an electron confined to an arbitrary surface of revolution in an external magnetic field, parallel to the symmetry axis, is studied analitycally and numerically. The problem is reduced via conformal mapping to one on…

Mesoscale and Nanoscale Physics · Physics 2009-09-25 P. Malits , A. Kaplunovsky , I. D. Vagner , P. Wyder

Recent work has shown that synchrotron emission from relativistic plasmas leads the electron distribution to form an anisotropic ring in momentum space, which can be unstable to both kinetic and hydrodynamic instabilities. Fundamental to…

Plasma Physics · Physics 2024-07-19 Ian E. Ochs

We provide a theoretical framework for the prediction and interpretation of momentum dependent phonon spectra due to coherent inelastic scattering of electrons. We complete the approach with first principles lattice dynamics using periodic…

Materials Science · Physics 2019-04-08 R. J. Nicholls , F. S. Hage , D. G. McCulloch , Q. M. Ramasse , K. Refson , J. R. Yates

Boundary dependent corrections to the spin energy eigenvalues of an electron in a weak magnetic field and confined by a harmonic trapping potential are investigated. The electromagnetic field is quantized through a normal mode expansion…

Quantum Physics · Physics 2014-04-17 Robert Bennett , Claudia Eberlein

Particles are accelerated to very high, non-thermal energies in solar and space plasma environments. While energy spectra of accelerated electrons often exhibit a power law, it remains unclear how electrons are accelerated to high energies…

Synchrotron emission from astrophysical nonthermal sources usually assumes that the emitting particles are isotropic. By means of large-scale two- and three-dimensional particle-in-cell simulations, we demonstrate that the dissipation of…

High Energy Astrophysical Phenomena · Physics 2020-06-04 Luca Comisso , Emanuele Sobacchi , Lorenzo Sironi

We measure thermodynamic magnetization of a low-disordered, strongly correlated two-dimensional electron system in silicon. Pauli spin susceptibility is observed to grow critically at low electron densities - behavior that is characteristic…

Strongly Correlated Electrons · Physics 2007-05-23 S. V. Kravchenko , A. A. Shashkin , S. Anissimova , A. Venkatesan , M. R. Sakr , V. T. Dolgopolov , T. M. Klapwijk

We construct a simple and robust approach for deriving constraints on magnetic fields in galaxy clusters from rotation measure (RM) maps. Relaxing the commonly used assumptions of a correlation between the magnetic field strength and the…

High Energy Astrophysical Phenomena · Physics 2013-09-19 Gilad Rave , Doron Kushnir , Eli Waxman

A convenient and general decomposition of the photon self-energy in a magnetized, but otherwise isotropic, medium is given in terms of the minimal set of tensors consistent with the transversality condition. As we show, the self-energy in…

High Energy Physics - Phenomenology · Physics 2009-11-07 Juan Carlos D'Olivo , Jose F. Nieves , Sarira Sahu

We demonstrate a novel detection method for the cyclotron resonance frequency of an electron plasma in a Penning-Malmberg trap. With this technique, the electron plasma is used as an in situ diagnostic tool for measurement of the static…

By means of fully kinetic simulations, we investigate electron acceleration during magnetic reconnection in a nonrelativistic proton--electron plasma with conditions similar to solar corona and flares. We demonstrate that reconnection leads…

Solar and Stellar Astrophysics · Physics 2015-09-29 Xiaocan Li , Fan Guo , Hui Li , Gang Li

The commonly used classical equipartition or minimum-energy estimate of total magnetic fields strengths from radio synchrotron intensities is of limited practical use because it is based on the hardly known ratio K of the total energies of…

Astrophysics · Physics 2007-05-23 Rainer Beck , Marita Krause

We present the first self-consistent theoretical models of magnetar spectra that take into account the combined effects of the stellar atmosphere and its magnetosphere. We find that the proton cyclotron lines that are already weakened by…

Astrophysics · Physics 2007-05-23 Tolga Guver , Feryal Ozel , Maxim Lyutikov

We study the electron self--energy in a strong magnetic field when the parameter \eta\equiv (\alpha/2\pi) \ln^2 (eB/m^2_0) \sim 1 and explore the transition between the perturbative regime \eta<<1 and the nonperturbative massless QED regime…

High Energy Physics - Phenomenology · Physics 2008-11-26 V. P. Gusynin , A. V. Smilga

The autocorrelation function and similarly the Fourier-power spectrum of a rotation measure (RM) map of an extended background radio source can be used to measure components of the magnetic autocorrelation and power-spectrum tensor within a…

Astrophysics · Physics 2011-05-23 Torsten A. Ensslin , Corina Vogt

The linear gyrokinetic stability properties of magnetically confined electron-positron plasmas are investigated in the parameter regime most likely to be relevant for the first laboratory experiments involving such plasmas, where the…

Plasma Physics · Physics 2016-06-16 Per Helander , J. W. Connor
‹ Prev 1 2 3 10 Next ›