Results 71 to 80 of about 258,245 (195)

Occurrence rate of magnetic holes between 0.72 and 1 AU: comparative study of Cluster and VEX data [PDF]

open access: yesAnnales Geophysicae, 2011
Localised depressions in the magnetic field magnitude, or magnetic holes, are common features in many regions of solar system plasma. Two distinct mechanisms for their generation have been proposed. The first proposed that the structures are generated
O. A. Amariutei   +2 more
doaj   +1 more source

Scanning mirror for infrared sensors [PDF]

open access: yes, 1972
A high resolution, long life angle-encoded scanning mirror, built for application in an infrared attitude sensor, is described. The mirror uses a Moire' fringe type optical encoder and unique torsion bar suspension together with a magnetic drive to meet ...
Anderson, R. H., Bernstein, S. B.
core   +1 more source

Topological crystalline protection in a photonic system

open access: yes, 2015
Topological crystalline insulators are a class of materials with a bulk energy gap and edge or surface modes, which are protected by crystalline symmetry, at their boundaries. They have been realized in electronic systems: in particular, in SnTe. In this
Liu, Chao-Xing   +2 more
core   +2 more sources

Radial Evolution of Turbulence Spectra on the Jovian Magnetosheath Flanks: Juno Observations

open access: yesThe Astrophysical Journal
The Jovian magnetosheath provides a unique environment for examining the radial evolution of magnetosheath turbulence due to its large spatial extent.
Hui Li   +3 more
doaj   +1 more source

Observations of Locally Generated Whistler-mode Waves in the Martian Magnetotail Current Sheet

open access: yesThe Astrophysical Journal, 2023
The whistler-mode wave is an electromagnetic wave that commonly occurs in space plasma and has been extensively studied, especially within the Earth's magnetosphere. They have also been reported in the near-Mars space, such as Martian upstream solar wind,
Xiao Ma   +6 more
doaj   +1 more source

Magnetic Mirror Stars in Five Dimensions#

open access: yesGravitation and Cosmology
We discuss a class of solutions of multidimensional gravity which are formally related to black-hole solutions but can observationally look like compact stars whose surface reflects back all particles or signals getting there. Some particular examples of such solutions are presented and studied, including those with a magnetic field in Maxwell or ...
Bronnikov, K. A.   +2 more
openaire   +3 more sources

Electrons in Magnetic Mirror Geometry

open access: yes, 2013
Landau's theory of electron motion in stationary magnetic fields is extended to the inclusion of bouncing along the field between mirror points in an inhomogeneous field. The problem can be treated perturbation theoretically. As expected, bouncing is quantized, causes a weak shift in Landau levels, reduces parallel degeneracy, but does not contribute ...
Treumann, R. A., Baumjohann, W.
openaire   +2 more sources

The EDGES signal: An imprint from the mirror world?

open access: yes, 2018
Recent results from the Experiment to Detect the Global Epoch of Reionization Signature (EDGES) show an anomalous spectral feature at redshifts $z\sim 15-20$ in its 21-cm absorption signal.
Fong, Chee Sheng, Sierra, D. Aristizabal
core   +1 more source

Higher-order Topology of Axion Insulator EuIn$_2$As$_2$

open access: yes, 2019
Based on first-principles calculations and symmetry analysis, we propose that EuIn$_2$As$_2$ is a long awaited axion insulator with antiferromagnetic (AFM) long range order.
Dai, Xi   +4 more
core   +1 more source

Magnetron sputtering cathode for low power density operation

open access: yesAIP Advances, 2017
A novel magnetron sputtering cathode with a magnetic mirror configuration is proposed, for low power density operation. The magnetic field profiles are simply constructed using two cylindrical permanent magnets positioned behind the disk-shaped ...
T. Motomura, T. Tabaru
doaj   +1 more source

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