Results 21 to 30 of about 313,740 (293)

Dynamics of an ensemble of clumps embedded in a magnetized ADAF

, 2015
We investigate effects of a global magnetic field on the dynamics of an ensemble of clumps within a magnetized advection-dominated accretion flow by neglecting interactions between the clumps and then solving the collisionless Boltzman equation.
Khajenabi, Fazeleh, Rahmani, Mina
core   +1 more source

Galactic and Accretion Disk Dynamos [PDF]

, 1998
Dynamos in astrophysical disks are usually explained in terms of the standard alpha-omega mean field dynamo model where the local helicity generates a radial field component from an azimuthal field.
Balbus, Batchelor, Biermann, Brandenburg, Cannizzo, Cannizzo, Chandrasekhar, Hawley, Kazantsev, Kemp, Kulsrud, Lazarian, Matsumoto, Stone, Tout, Vallée, Velikhov, Vishniac, Vishniac, Vishniac, Zweibel   +20 more
core   +2 more sources

Are the Magnetic Fields Radial in the Solar Polar Region?

Research Notes of the AAS, 2021
Abstract We investigate the orientation of the photospheric magnetic fields in the solar polar region using observations from the Helioseismic and Magnetic Imager (HMI). Inside small patches of significant polarization, the inferred magnetic field vectors at 1″ scale appear to systematically deviate from the radial direction.
Xudong 东 Sun 孙旭, Yang 扬 Liu 刘, Ivan Milić, Ana Belén Griñón-Marín   +3 more
openaire   +2 more sources

Effects of magnetic field strength in the discharge channel on the performance of a multi-cusped field thruster

AIP Advances, 2016
The performance characteristics of a Multi-cusped Field Thruster depending on the magnetic field strength in the discharge channel were investigated. Four thrusters with different outer diameters of the magnet rings were designed to change the magnetic ...
Peng Hu, Hui Liu, Yuanyuan Gao, Daren Yu
doaj   +1 more source

The Coma cluster magnetic field from Faraday rotation measures

, 2009
The aim of the present work is to constrain the Coma cluster magnetic field strength, its radial profile and power spectrum by comparing Faraday Rotation Measure (RM) images with numerical simulations of the magnetic field.
A. Bonafede, Bicknell, Briel, Brüggen, Burn, Cavaliere, Clarke, Clarke, Collins, D. Dallacasa, Dallacasa, Dolag, Dolag, Dolag, Dolag, Dolag, Dolag, Donnert, Donnert, Dubois, Ensslin, F. Govoni, Feretti, Feretti, Feretti, Ferrari, Fusco-Femiano, Fusco-Femiano, G. B. Taylor, G. Giovannini, Garrington, Garrington, Giovannini, Govoni, Govoni, Guidetti, K. Dolag, Kim, L. Feretti, Laing, Laing, Lutovinov, M. Murgia, Mehlert, Miller, Murgia, Rudnick, Schuecker, Simard-Normandin, Taylor, Thierbach, Vazza, Vazza, Venturi, Vogt, Vogt, Véron-Cetty, Wik   +57 more
core   +1 more source

Ulysses observations of the radial magnetic field

Geophysical Research Letters, 1995
The radial component of the magnetic field in the southern hemisphere has been measured at Ulysses as it traveled from the equator to −80.2° latitude and returned. The radial component multiplied by the square of the radial distance, i.e., BRr², averaged over 77 day intervals (three solar rotations) is approximately constant at −3.5 nT and shows no ...
Edward J. Smith, A. Balogh
openaire   +1 more source

Magneto-Elastic Analysis of an Annular FGM Plate Based on Classical Plate Theory Using GDQ Method

Latin American Journal of Solids and Structures
Using GDQ method, the radial and circumferential stresses in an annular FGM plate with a uniform thickness under a transverse axisymmetric load is investigated. It is assumed that a uniform radial magnetic field acts on the top surface of the plate.
M. Shishesaz, A. Zakipour, A. Jafarzadeh
doaj   +1 more source

Importance of exponentially falling variability in heat generation on chemically reactive von kármán nanofluid flows subjected to a radial magnetic field and controlled locally by zero mass flux and convective heating conditions: A differential quadrature analysis

Frontiers in Physics, 2022
Owing to the various physical aspects of nanofluids as thermally enhanced working fluids and the significance of swirling flows in rheological devices as well as in the spin coating and lubrication applications, the current comprehensive examination ...
Abderrahim Wakif, Aissa Abderrahmane, Kamel Guedri, Belgacem Bouallegue, Belgacem Bouallegue, Rungnapa Kaewthongrach, Pramet Kaewmesri, Anuwat Jirawattanapanit   +7 more
doaj   +1 more source

Simulation and Analysis of the Loss of Hybrid Magnetization Magnetic Gear Composite Motor

Jixie chuandong, 2021
The loss of a hybrid magnetized magnetic gear composite motor is studied， and the magnetic field and air gap magnetic density and harmonics of the hybrid magnetized magnetic gear composite motor and the radial magnetized magnetic gear composite motor are
Bangjing Zhang, Zina Zhu, Di Wu, Rui Zhang   +3 more
doaj  

Global enhancement and structure formation of the magnetic field in spiral galaxies

, 2017
We study numerically large-scale magnetic field evolution and its enhancement in gaseous disks of spiral galaxies. We consider a set of models with the various spiral pattern parameters and the initial magnetic field strength with taking into account gas
Khoperskov, S. A., Khrapov, S. S.
core   +1 more source