Results 121 to 130 of about 2,624,667 (213)

Observations of Kinetic‐Scale Magnetic Hole With Significant Energy Conversion in a Magnetotail Reconnection Diffusion Region

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract Kinetic‐scale magnetic holes (KSMHs) are ubiquitous quasi‐steady magnetic structures and vital energy conversion channels in various space plasmas, for example, terrestrial foreshock and magnetopause reconnection region. However, the energy conversion mechanism within KSMHs remains unclear.
Xiujuan Ou, Zhihong Zhong, Meng Zhou, Wenqing Ma, Liangjin Song, Ye Pang, Rongxin Tang, Xiaohua Deng   +7 more
wiley   +1 more source

Hall Scale in the Earth's Magnetosphere and Magnetospheric Substorm

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract We investigate the contribution of the Hall term on the generalized Ohm's law in magnetospheric plasmas. In particular, we focus on its role in processes that lead to the formation of substorm perturbations deep inside the magnetosphere. Using data from the THEMIS mission, we calculate the average Hall length LHall $\left({L}_{\text{Hall ...
E. E. Antonova, I. Kirpichev, M. Stepanova   +2 more
wiley   +1 more source

Electron Beams Generated by the Electron Kelvin‐Helmholtz Instability at a Quasi‐Perpendicular Shock

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract Electron beams are considered to be important free energy sources for the excitation of various plasma waves at quasi‐perpendicular shocks. In this article, we perform a two‐dimensional particle‐in‐cell simulation of a low‐plasma‐β quasi‐perpendicular shock.
Ao Guo, Quanming Lu, San Lu, Xinliang Gao, Zhongwei Yang   +4 more
wiley   +1 more source

Gamma ray spectroscopy in astrophysics [PDF]

Experimental and theoretical aspects of gamma ray spectroscopy in high energy astrophysics are discussed. Line spectra from solar, stellar, planetary, and cosmic gamma rays are examined as well as HEAO investigations, the prospects of a gamma ray ...
Cline, T. L., Ramaty, R.
core   +1 more source

Utilizing Stellar Mass Estimates to Identify Gravitational Wave Host Galaxies [PDF]

arXiv
Stellar mass can enhance the ranking of potential hosts for compact binary coalescences identified by ground-based gravitational-wave detectors within large localisation areas containing even thousands of galaxies. Despite its benefits, accurate stellar mass estimation is often time-consuming and computationally intensive.
arxiv  

Linear astrophysical dynamos in rotating spheres Differential rotation, anisotropic turbulent magnetic diffusivity, and solar-stellar cycle magnetic parity

The Astrophysical Journal, 1984
Z. Wang, H. Yoshimura, F. Wu
openaire   +2 more sources

Linear Astrophysical Dynamos in Rotating Spheres - Solar and Stellar Cycle North-South Hemispheric Parity Selection Mechanism and Turbulent Magnetic Diffusivity

The Astrophysical Journal, 1984
F. Wu, H. Yoshimura, Z. Z. Wang
openaire   +2 more sources

Stellar occultations: a gateway to advances in planetary science. [PDF]

Philos Trans A Math Phys Eng Sci
Souami D, Sfair R, Renner S, El Moutamid M.   +3 more
europepmc   +1 more source

Science development study for the Atacama Large Aperture Submillimeter Telescope (AtLAST): Solar and stellar observations. [PDF]

Open Res Eur
Wedemeyer S, Barta M, Brajša R, Chai Y, Costa J, Gary D, Gimenez de Castro G, Gunar S, Fleishman G, Hales A, Hudson H, Kirkaune M, Mohan A, Motorina G, Pellizzoni A, Saberi M, Selhorst CL, Simoes PJA, Shimojo M, Skokić I, Sudar D, Menezes F, White SM, Booth M, Klaassen P, Cicone C, Mroczkowski T, Cordiner MA, Di Mascolo L, Johnstone D, van Kampen E, Lee M, Liu D, Maccarone T, Orlowski-Scherer J, Saintonge A, Smith M, Thelen AE.   +37 more
europepmc   +1 more source

Formation of free-floating planetary mass objects via circumstellar disk encounters. [PDF]

Sci Adv
Fu Z, Deng H, Lin DNC, Mayer L.
europepmc   +1 more source