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MMS observations recently confirmed that crescent-shaped electron velocity distributions in the plane perpendicular to the magnetic field occur in the electron diffusion region near reconnection sites at Earth's magnetopause. In this paper,…

If quark stars exist, they may be enveloped in thin electron layers (electron seas), which uniformly surround the entire star. These layers will be affected by the magnetic fields of quark stars in such a way that the electron seas would…

高能天体物理现象 · 物理学 2015-05-30 R. X. Xu , S. I. Bastrukov , F. Weber , J. W. Yu , I. V. Molodtsova

The Lorenz--Mie formulation of electromagnetic scattering by a homogeneous, isotropic, dielectric-magnetic sphere was extended to incorporate topologically insulating surface states characterized by a surface admittance $\gamma$.…

光学 · 物理学 2020-03-31 Akhlesh Lakhtakia , Tom G. Mackay

We report, for the first time, a full experimental and computational investigation of all possible light matter interactions on the surface of an infrared metamaterial absorber (MMA). Two channels of energy dissipation - diffuse scattering…

There has been significant interest lately in the study of Electromagnetic (EM) waves interacting with magnetized plasmas. The variety of resonances and the existence of several pass and stop bands in the dispersion curve for different…

等离子体物理 · 物理学 2025-07-01 Trishul Dhalia , Rohit Juneja , Amita Das

We analyzed properties of waves excited by mildly relativistic electron beams propagating along magnetic field with a ring-shape perpendicular momentum distribution in neutral and current-free solar coronal plasmas. These plasmas are…

等离子体物理 · 物理学 2020-03-18 X. Zhou , P. A. Muñoz , J. Büchner , S. Liu

Strongly magnetic, rapidly rotating B-type stars with relatively weak winds form centrifugal magnetospheres (CMs), as the stellar wind becomes magnetically confined above the Kepler co-rotation radius. Approximating the magnetic field as a…

太阳与恒星天体物理 · 物理学 2022-02-16 I. D. Berry , S. P. Owocki , M. E. Shultz , A. ud-Doula

We show that circularly polarized lasers create plasmas with long-lasting ring-shaped weakly relativistic momentum distributions which, in the presence of an ambient magnetic field, are prone to the electron cyclotron maser instability.…

等离子体物理 · 物理学 2024-12-10 Thales Silva , Pablo J. Bilbao , Luis O. Silva

The role of solar wind expansion in generating whistler waves is investigated using the EB-iPic3D code, which models solar wind expansion self-consistently within a fully kinetic semi-implicit approach. The simulation is initialized with an…

太阳与恒星天体物理 · 物理学 2021-09-29 A. Micera , A. N. Zhukov , R. A. López , E. Boella , A. Tenerani , M. Velli , G. Lapenta , M. E. Innocenti

It is pointed out that the unmagnetized inhomogeneous plasmas can support a low frequency electromagnetic ion wave as a normal mode like Alfven wave of magnetized plasmas. But this is a coupled mode produced by the mixing of longitudinal…

等离子体物理 · 物理学 2011-02-18 Hamid Saleem

Electron cyclotron waves (whistlers), are commonly observed in plasmas near Earth and the solar wind. In the presence of nonlinear mirror modes, bursts of whistlers, usually called lion roars, have been observed within low magnetic field…

高能天体物理现象 · 物理学 2023-10-02 Francisco Ley , Ellen G. Zweibel , Drake Miller , Mario Riquelme

Most of the Universe's populations of low energy cosmic ray electrons in the energy range of 1-100 MeV still manage to elude from detection by our instruments, since their synchrotron emission is at too low frequencies. We investigate a…

天体物理学 · 物理学 2009-11-06 Torsten A. Ensslin , Rashid A. Sunyaev

We present a study on the properties of electromagnetic plasma waves in the region upstream of the Martian bow shock, detected by the magnetometer and electron reflectometer (MAG / ER) onboard the Mars Global Surveyor (MGS) spacecraft…

地球与行星天体物理 · 物理学 2015-06-15 Norberto Romanelli , Cesar Bertucci , Daniel Gomez , Christian Mazelle , Magda Delva

We develop an effective approach for the study of the interaction of gravitational waves (GWs) and electromagnetic waves (EMWs), showing that quadrirefringence can be produced, a phenomenon consisting in a frequency and polarization…

广义相对论与量子宇宙学 · 物理学 2024-04-10 Antonio Enea Romano , Sergio A. Vallejo-Peña

Recent study has demonstrated that electron cyclotron harmonic (ECH) waves can be excited by a low energy electron beam. Such waves propagate at moderately oblique wave normal angles (~70). The potential effects of beam-driven ECH waves on…

等离子体物理 · 物理学 2024-06-04 Xu Zhang , Xin An , Vassilis Angelopoulos , Anton Artemyev , Xiao-Jia Zhang , Ying-Dong Jia

Particle-in-cell code, EPOCH, is used for studying features of the wave component evident to propagate backwards from the front of the non-gyrotropic, relativistic beam of electrons injected in the Maxwellian, magnetised background plasma…

太阳与恒星天体物理 · 物理学 2014-04-28 Marina Skender , David Tsiklauri

Electron injections are critical processes associated with magnetospheric substorms, which deposit significant electron energy into the ionosphere. Although wave scattering of $<$10 keV electrons during injections has been well studied, the…

We study gravitational waves generated by the cosmological magnetic fields induced via bubble collisions during the electroweak (EW) and QCD phase transitions. The magnetic field generation mechanisms considered here are based on the use of…

宇宙学与河外天体物理 · 物理学 2010-04-28 Tina Kahniashvili , Leonard Kisslinger , Trevor Stevens

Wave emissions at frequencies near electron gyrofrequency harmonics are observed at small heliocentric distances below about 40 solar radii and are known to occur in regions with quiescent magnetic fields. We show the close connection of…

太阳与恒星天体物理 · 物理学 2022-08-26 Sabrina F. Tigik , Andris Vaivads , David M. Malaspina , Stuart D. Bale

We suggest that the luminous extreme ultraviolet (EUV) emission which has been detected recently from clusters of galaxies is Inverse Compton (IC) scattering of Cosmic Microwave Background (CMB) radiation by low energy cosmic ray electrons…

天体物理学 · 物理学 2009-10-30 Craig L. Sarazin , Richard Lieu