Results 131 to 140 of about 258,357 (262)

BepiColombo at Mercury: Three Flybys, Three Magnetospheres

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We examine the first three BepiColombo Mercury flybys Using data from the Miniature Ion Precipitation Analyzer (MIPA), an ion mass analyzer in the Search for Exospheric Refilling and Natural Abundances package on the Mercury Planetary Orbiter designed to study magnetospheric dynamics.
Hayley N. Williamson, Stas Barabash, Hans Nilsson, Martin Wieser, Jim M. Raines, Anna Milillo, Ali Varsani, Alessandro Aronica, Elisabetta DeAngelis, Yoshifumi Futaana, Daniel Heyner, Adrian Kazakov, Stefano Livi, Stefano Orsini, Kristin Pump, Daniel Schmid, Manabu Shimoyama   +16 more
wiley   +1 more source

The Interplay between Dust Dynamics and Turbulence Induced by the Vertical Shear Instability

The Astrophysical Journal
The interaction between gas and dust in protoplanetary disks (PPDs) plays a crucial role in setting the stage for planet formation. In particular, the streaming instability (SI) is well recognized as the mechanism for planetesimal formation out of this ...
Pinghui Huang, Xue-Ning Bai
doaj   +1 more source

Whipped and Mixed Warm Clouds in the Deep Sea

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Turbulence is indispensable to redistribute nutrients for all life forms larger than microbial, on land and in the ocean. Yet, the development of deep‐sea turbulence was not studied in three dimensions to date. As a disproportionate laboratory, an array of nearly 3,000 high‐resolution temperature sensors had been installed for three years on ...
Hans van Haren, KM3NeT collaboration
wiley   +1 more source

Bridging Unstratified and Stratified Simulations of the Streaming Instability for τs = 0.1 Grains

The Astrophysical Journal
The streaming instability (SI), driven by aerodynamic coupling between solids and gas under a global radial pressure gradient, concentrates solids and facilitates planetesimal formation.
Jeonghoon Lim, Stanley A. Baronett, Jacob B. Simon, Chao-Chin Yang, Debanjan Sengupta, Orkan M. Umurhan, Wladimir Lyra   +6 more
doaj   +1 more source

Spatial Distributions of Energetic Electrons and Energetic Ions in the Tail Reconnection Region: Cluster Observations and PIC Simulations

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract High‐energy particles are prevalent in space, and magnetic reconnection is one of the physical processes responsible for their generation. The heating and acceleration of ions and electrons typically occur respectively in the ion diffusion region and the electron diffusion region.
S. Y. Huang, H. W. Zhan, Q. Y. Xiong, Z. G. Yuan, K. Jiang, Y. T. Tang, H. Bai   +6 more
wiley   +1 more source

Effect of Transverse Magnetic Field on Kelvin–Helmholtz Instability in the Presence of a Radiation Field

The Astrophysical Journal
The dispersion relation of the magnetized Kelvin–Helmholtz (KH) instability driven by shear flow with zero thickness of the shear layer is derived theoretically based on a set of magnetohydrodynamic equations in the presence of a transverse magnetic ...
Hang Peng, Fang Yu, Yauheni Huliuta, Lai Wei, Zheng-Xiong Wang, Yue Liu   +5 more
doaj   +1 more source

Effect of Nonuniform Parallel Magnetic Field on the Kelvin–Helmholtz Instability in the Orion Nebula

The Astrophysical Journal
The surface rippled structures of Orion molecular cloud have been attributed to the Kelvin–Helmholtz (KH) instability, and the influence of magnetic field and pressure on the formation and evolution of these structures is one of the important issues that
Hang Peng, Fang Yu, Lai Wei, Zheng-Xiong Wang, Yue Liu   +4 more
doaj   +1 more source

Linear Stability Analysis of Relativistic Magnetized Jets: The Minimalist Approach

Universe
A minimalist approach to the linear stability problem in fluid dynamics is developed that ensures efficiency by utilizing only the essential elements required to find the eigenvalues for given boundary conditions.
Nektarios Vlahakis
doaj   +1 more source

Thermal Baroclinic Instabilities in Accretion Disks. I. Combined Dispersion Relation for Goldreich–Schubert–Fricke Instability and Convective Overstability in Disks around Young Stars

The Astrophysical Journal
This paper discusses the Goldreich–Schubert–Fricke instability (GSF) and the convective overstability (COS) in the context of baroclinic thermal instabilities in rotating disks around young stars.
Hubert Klahr
doaj   +1 more source

Sub-Alfvénic Turbulence: Magnetic-to-kinetic Energy Ratio, Modification of Weak Cascade, and Implications for Magnetic Field Strength Measurements

The Astrophysical Journal
We study the properties of sub-Alfvénic magnetohydrodynamic (MHD) turbulence, i.e., turbulence with Alfvén mach number M _A = V _L / V _A < 1, where V _L is the velocity at the injection scale and V _A is the Alfvén velocity.
A. Lazarian, Ka Wai Ho, Ka Ho Yuen, Ethan Vishniac   +3 more
doaj   +1 more source