Results 31 to 40 of about 69,772 (198)

Faraday rotation measures in 20 AGN jets at parsec scale

open access: yesEPJ Web of Conferences, 2013
We present multi wavelength parsec-scale Faraday rotation measure properties of twenty active galactic nuclei, observed with the Very Long Baseline Array simultaneously at 1.4, 1.6, 2.2, 2.4, 4.6, 5.0, 8.1, 8.4 and 15.4 GHz in the full polarization mode.
Kravchenko Evgeniya V.   +2 more
doaj   +1 more source

Evidence for Helical Magnetic Fields Associated with AGN Jets and the Action of a Cosmic Battery

open access: yesGalaxies, 2018
Theoretical models for the electromagnetic launching of astrophysical jets have long indicated that this process should generate helical magnetic fields, which should then propagate outward with the jet plasma.
Denise Gabuzda
doaj   +1 more source

Secondary B-mode polarization from Faraday rotation in clusters and galaxies [PDF]

open access: yes, 2008
We revisit the polarisation induced by Faraday rotation when Cosmic Microwave Background photons traverse magnetised plasma. We compute the secondary B-mode angular power spectrum from Faraday rotation due to magnetic fields in galaxies and galaxy ...
Athreya   +46 more
core   +3 more sources

Faraday rotation and magneto-optical figure of merit for the magnetite magnetic fluids

open access: yesEPJ Web of Conferences, 2011
In the present paper, using magnetite magnetic fluids as examples, we consider the optical and magneto-optical properties of magnetic fluids based on particles of magnetic oxides, for the optical constants of the material of which, n and k , the relation
Kalandadze L.
doaj   +1 more source

Molecular spintronics: Coherent spin transfer in coupled quantum dots [PDF]

open access: yes, 2004
Time-resolved Faraday rotation has recently demonstrated coherent transfer of electron spin between quantum dots coupled by conjugated molecules. Using a transfer Hamiltonian ansatz for the coupled quantum dots, we calculate the Faraday rotation signal ...
A. Tackeuchi   +31 more
core   +1 more source

Faraday effect in bi-periodic photonic-magnonic crystals

open access: yes, 2017
We present a theoretical investigation of the polarization plane rotation at light transmission - Faraday effect, through one-dimensional multilayered magneto-photonic systems consisting of periodically distributed magnetic and dielectric layers.
Dadoenkova, Nataliya N.   +4 more
core   +1 more source

Canals in Milky Way radio polarization maps [PDF]

open access: yes, 2006
Narrow depolarized canals are common in maps of the polarized synchrotron emission of the Milky Way. Two physical effects that can produce these canals have been identified: the presence of Faraday rotation measure ($\RM$) gradients in a foreground ...
Fletcher, Andrew, Shukurov, Anvar
core   +3 more sources

Electrically controlled terahertz magneto-optical phenomena in continuous and patterned graphene

open access: yesNature Communications, 2017
Time reversal symmetry breaking gives rise to magnetic circular dichroism and Faraday rotation in graphene. The authors use terahertz magneto-electro-optical spectroscopy to demonstrate that electrostatic doping at a fixed magnetic field allows inversion
Jean-Marie Poumirol   +6 more
doaj   +1 more source

Optical properties and enhanced Faraday rotation in three-layer hybrid magneto-plasma crystals with C4h symmetry

open access: yesResults in Physics
We investigate the optical properties and magneto-optical (MO) Faraday effect of a type of hybrid magneto-plasma crystal (HMPC) that is composed of a magnetic layer sandwiched between two Ag layers containing an array of holes.
Junsheng Li   +3 more
doaj   +1 more source

Turbulent Structure in Supernova Remnants G46.8−0.3 and G39.2−0.3 from THOR Polarimetry

open access: yesThe Astrophysical Journal, 2023
We present the continued analysis of polarization and Faraday rotation for the supernova remnants (SNRs) G46.8−0.3 and G39.2−0.3 in L -band (1–2 GHz) radio continuum in The H i /OH/Recombination line (THOR) survey.
Russell Shanahan   +7 more
doaj   +1 more source

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