Results 21 to 30 of about 12,596 (307)
Magnetic field tomography, helical magnetic fields and Faraday depolarization [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 Wide-band radio polarization observations offer the possibility to recover information about the magnetic fields in synchrotron sources, such as details of their three-dimensional configuration, that has previously been inaccessible. The key physical process involved is the Faraday rotation of the polarized emission in the source (and elsewhere along ...
Horellou C, Fletcher A
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Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields
Galaxies, 2016 In the study of relativistic jets one of the key open questions is their interaction with the environment on the microscopic level. Here, we study the initial evolution of both electron–proton ( e − – p + ) and electron–positron ( e ± )
Ken-Ichi Nishikawa +13 more
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The Origin and Structure of the Magnetic Fields and Currents of AGN Jets
Galaxies, 2017 This paper reviews observational evidence obtained to date about the overall structure of the magnetic fields in the jets of Active Galactic Nuclei (AGN).
Denise Gabuzda
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3D Microprinting of Iron Platinum Nanoparticle‐Based Magnetic Mobile Microrobots
Advanced Intelligent Systems, 2021 Wireless magnetic microrobots are envisioned to revolutionize minimally invasive medicine. While many promising medical magnetic microrobots are proposed, the ones using hard magnetic materials are not mostly biocompatible, and the ones using ...
Joshua Giltinan +4 more
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Cosmological magnetic fields from primordial helicity
Physical Review D, 2000 Primordial magnetic fields may account for all or part of the fields observed in galaxies. We consider the evolution of the magnetic fields created by pseudoscalar effects in the early universe. Such processes can create force-free fields of maximal helicity; we show that for such a field magnetic energy inverse cascades to larger scales than it would ...
Field, George B., Carroll, Sean M.
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Scale-invariant helical magnetic fields from inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We discuss a model which can generate scale-invariant helical magnetic fields on large scales ($\lesssim 1$Mpc) in the primordial universe. It is also shown that the electric conductivity becomes significant and terminates magnetogenesis even before reheating is completed.
Fujita, Tomohiro, Durrer, Ruth
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Direct Imaging of a Toroidal Magnetic Field in the Inner Jet of NRAO 150
Galaxies, 2016 Most formation models and numerical simulations cause a helical magnetic field to form, accelerate and collimate jets in active galactic nuclei (AGN). For this reason, observational direct evidence for the existence of these helical magnetic fields is of
Sol N. Molina +5 more
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Development of multistage energy recovery system for gyrotrons [PDF]
ITM Web of Conferences, 2019 A four-stage depressed collector based on spatial separation of electrons with different energies in the crossed electric and magnetic fields was developed for the experimental SPbPU gyrotron.
Trofimov Pavel, Louksha Oleg
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Spin Edge Helices in a Perpendicular Magnetic Field [PDF]
Physical Review Letters, 2010 We present an exact solution to the problem of the spin edge states in the presence of equal Bychkov-Rashba and Dresselhaus spin-orbit fields in a two-dimensional electron system, restricted by a hard-wall confining potential and exposed to a perpendicular magnetic field.
Badalyan, Samvel, Fabian, Jaroslav
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Magnetic field of complex helical conductors [PDF]
Archives of Electrical Engineering, 2013 Abstract Transmission of the electric power is accompanied with generation of low - frequency electromagnetic fields. Electromagnetic compatibility studies require that the fields from sources of electric power be well known. Unfortunately, many of these sources are not defined to the desired degree of accuracy. This applies e.g. to the case of the
Krzysztof Budnik, Wojciech Machczyński
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