Results 121 to 130 of about 3,477 (194)

The Impact of Enhanced Extreme-ultraviolet Flux on the Upper Atmosphere of Earth-like Exoplanets

The Astrophysical Journal
Identifying Earth-like planets outside our solar system is a leading research goal in astronomy, but determining if candidate planets have atmospheres, and more importantly if they can retain atmospheres, is still out of reach.
Lukas Hanson, Ofer Cohen, Aaron J. Ridley, Alex Glocer   +3 more
doaj   +1 more source

A pebble accretion model for the formation of the terrestrial planets in the Solar System. [PDF]

Sci Adv, 2021
Johansen A, Ronnet T, Bizzarro M, Schiller M, Lambrechts M, Nordlund Å, Lammer H.   +6 more
europepmc   +1 more source

Odd Radio Circles Modeled by Shock-bubble Interactions

The Astrophysical Journal
The physical nature and origins of the newly discovered class of Odd Radio Circles (ORCs) remain unclear. We investigate a model whereby ORCs are synchrotron-emitting vortex rings formed by the Richtmyer–Meshkov instability (RMI) when a shock interacts ...
Yiting Wang, Sebastian Heinz
doaj   +1 more source

Magnetic Flux Plays an Important Role during a Black Hole X-Ray Binary Outburst in Radiative Two-temperature General Relativistic Magnetohydrodynamic Simulations

The Astrophysical Journal
Black hole (Bh) X-ray binaries cycle through different spectral states of accretion over the course of months to years. Although persistent changes in the Bh mass accretion rate are generally recognized as the most important component of state ...
M. T. P. Liska, N. Kaaz, K. Chatterjee, Razieh Emami, G. Musoke   +4 more
doaj   +1 more source

Simulations of cosmic ray propagation. [PDF]

Living Rev Comput Astrophys, 2021
Hanasz M, Strong AW, Girichidis P.
europepmc   +1 more source

Three-dimensional Magnetohydrodynamic Simulations of Periodic Variations of Ganymede’s Footprint

The Astrophysical Journal
Alfvénic power is generated through the interaction between the mini-magnetosphere of Ganymede and the corotating flow of the Jovian plasma, contributing to the formation of the Ganymede auroral footprint at Jupiter’s ionosphere.
Tao Yan, Binzheng Zhang, Junjie Chen, Zhiqi Zheng, Ziyi Yang, Shengyi Ye, Jun Cui   +6 more
doaj   +1 more source

Unveiling the Connection between the Alfvénic Oval and the Open–Closed Field Line Boundary at Ganymede

The Astrophysical Journal
Alfvén waves generated by the interactions between the Ganymede magnetosphere and the fast-corotating Jovian plasma carry a significant amount of energy.
Tao Yan, Binzheng Zhang, Junjie Chen, Ziyi Yang, Shengyi Ye, Jun Cui   +5 more
doaj   +1 more source

Comparative Analysis of Hall Effect Implementations in Hall Magnetohydrodynamics

The Astrophysical Journal
There is no standard numerical implementation of the Hall effect, which is one of the nonideal magnetohydrodynamic (MHD) effects. Numerical instability arises when a simple implementation is used, in which the Hall electric field is added to the electric
Kazunari Iwasaki, Kengo Tomida
doaj   +1 more source

Fast Magnetoacoustic Wave Behavior within Gravitationally Stratified, Magnetically Inhomogeneous Media

The Astrophysical Journal
The nature of MHD waves within inhomogeneous media is fundamental to understanding and interpreting wave behavior in the solar atmosphere. We investigate fast magnetoacoustic wave behavior within gravitationally stratified, magnetically inhomogeneous ...
Ryan T. Smith, James A. McLaughlin, Gert J. J. Botha   +2 more
doaj   +1 more source

Neutron star merger remnants. [PDF]

Gen Relativ Gravit, 2020
Bernuzzi S.
europepmc   +1 more source