Results 21 to 30 of about 711 (153)
Skymaps of observables of three-dimensional magnetohydrodynamic astrosphere models [PDF]
Astronomy & Astrophysics, 2020 Context. Three-dimensional models of astrospheres have recently become of interest. However, comparisons between these models and observations are non-trivial because of the two-dimensional nature of observations. Aims. By projecting selected physical values of three-dimensional models of astrospheres onto the surface of a sphere that is centred on a ...
L. R. Baalmann +5 more
openaire +3 more sources
Solar wind with Hydrogen Ion charge Exchange and Large-Scale Dynamics (SHIELD) DRIVE Science Center
Frontiers in Astronomy and Space Sciences, 2023 Most stars generate winds and move through the interstellar medium that surrounds them. This movement creates a cocoon formed by the deflection of these winds that envelops and protects the stars. We call these “cocoons” astrospheres. The Sun has its own
Merav Opher +48 more
doaj +1 more source
The Venusian Atmospheric Oxygen Ion Escape: Extrapolation to the Early Solar System
Journal of Geophysical Research: Planets, Volume 125, Issue 3, March 2020., 2020 Abstract The present atmosphere of Venus contains almost no water, but recent measurements indicate that in its early history, Venus had an Earth‐like ocean. Understanding how the Venusian atmosphere evolved is important not only for Venus itself but also for understanding the evolution of other planetary atmospheres.
M. Persson +7 more
wiley +1 more source
Ionisation as indicator for cosmic ray acceleration [PDF]
, 2014 Astrospheres and wind bubbles of massive stars are believed to be sources of cosmic rays with energies $E\lesssim 1\,$TeV. These particles are not directly detectable, but their impact on surrounding matter, in particular ionisation of atomic and ...
Fedrau, Natalie +3 more
core +2 more sources
MHD flows at astropauses and in astrotails [PDF]
, 2014 The geometrical shapes and the physical properties of stellar wind -- interstellar medium interaction regions form an important stage for studying stellar winds and their embedded magnetic fields as well as cosmic ray modulation. Our goal is to provide a
Karlicky, Marian +3 more
core +2 more sources
Modeling the astrosphere of LHS~1140 [PDF]
Astronomy & Astrophysics14 pages, 8 ...
Scherer, K. +5 more
openaire +4 more sources
THE ASTROSPHERE OF THE ASYMPTOTIC GIANT BRANCH STAR CIT 6 [PDF]
The Astronomical Journal, 2014 accepted for publication by the Astronomical ...
Sahai, Raghvendra, Mack-Crane, Galen P.
openaire +2 more sources
Journal of Geophysical Research: Space Physics, Volume 124, Issue 12, Page 9774-9790, December 2019., 2019 Abstract Computation of the ionization and radiation dose in arbitrary (exo‐) planetary atmospheres due to energetic particles is recently becoming more important due to several reasons that are either correlated with the detection of trace gases for life on exoplanets or with computing dose rates at arbitrary altitudes in the Earth atmosphere.
S. Banjac +4 more
wiley +1 more source
The Kelvin-Helmholtz instability in astrospheres.
, 2022 Videos are isolines of the Mach number in the entire flow area versus time. You can observe the evolution of the Kelvin-Helmholtz instability. Video_1 shows the flow with the parameter \(\chi = 1.6\) and \(M_\infty = 3\). It's almost a steady stream. Video_2 shows the flow with the parameter \(\chi = 17\) and \(M_\infty = 3\).
Korolkov, S.D., Izmodenov, V.V.
openaire +2 more sources
Simulating the environment around planet-hosting stars - II. Stellar winds and inner astrospheres [PDF]
, 2016 We present the results of a comprehensive numerical simulation of the environment around three exoplanet-host stars (HD 1237, HD 22049, and HD 147513).
J. Alvarado‐Gómez +8 more
semanticscholar +1 more source