Results 111 to 120 of about 195 (134)
Comparison of astrospheres around cool and hot stars [PDF]
Journal of Physics: Conference Series, 2016 Simulations of astrospheres around hot and cool stars have recently move into the focus of scientific research. We describe here the differences between the astrospheres around hot and cool stars. While those around the former are huge (on pc scales) because of their high stellar wind momentum flow, those around cool stars are on a AU scale and the ...
Horst Fichtner, Klaus Scherer
exaly +4 more sources
Magnetic Reconnection at Planetary Bodies and Astrospheres [PDF]
Space Science Reviews, 2023 AbstractMagnetic reconnection is a fundamental mechanism for the transport of mass and energy in planetary magnetospheres and astrospheres. While the process of reconnection is itself ubiquitous across a multitude of systems, the techniques used for its analysis can vary across scientific disciplines.
Daniel Gershman +2 more
exaly +3 more sources
MHD-shock structures of astrospheres: λ Cephei -like astrospheres [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The interpretation of recent observations of bow shocks around O-stars and the creation of corresponding models require a detailed understanding of the associated (magneto-)hydrodynamic structures. We base our study on 3D numerical (magneto-)hydrodynamical models, which are analysed using the dynamically relevant parameters, in ...
Konstantin Herbst +2 more
exaly +4 more sources
Modelling O-star astrospheres with different relative speeds between the ISM and the star: 2D and 3D MHD model comparison [PDF]
Astronomy and Astrophysics, 2022 Context. State of the art simulations of astrospheres are modelled using three-dimensional (3D) magnetohydrodynamics (MHD). An astrospheric interaction of a stellar wind (SW) with its surrounding interstellar medium (ISM) can only generate a bow shock if
Jens Kleimann +2 more
exaly +2 more sources
Lyman-α observations of astrospheres [PDF]
ASTRA Proceedings, 2014 Abstract. Charge-exchange reactions between outflowing stellar wind protons and interstellar neutral hydrogen atoms entering a stellar astrosphere produce a region of piled-up-decelerated neutral hydrogen called the hydrogen wall. Absorption by this gas, which is observed in stellar Lyman-α emission lines, provides the only viable technique at this ...
Brian Wood, Jeffrey Linsky
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Astrophysics, 2013
The characteristics of the astrospheres of convective dwarf stars, such as their radii, mass loss rates, and steady-state outflow rates, are shown by dimensional considerations to be related by simple analytic formulas to the basic parameters of the stars, their mass, radius, and rotation velocity.
exaly +2 more sources
The characteristics of the astrospheres of convective dwarf stars, such as their radii, mass loss rates, and steady-state outflow rates, are shown by dimensional considerations to be related by simple analytic formulas to the basic parameters of the stars, their mass, radius, and rotation velocity.
exaly +2 more sources
Journal of Physics: Conference Series, 2019 Paper for ECRS-2018, to be published.
Struminsky, A., Sadovski, A.
exaly +3 more sources
X-ray detection of astrospheres around three main-sequence stars and their mass-loss rates [PDF]
Nature AstronomyStellar winds of cool main-sequence stars are difficult to constrain observationally. One way to measure stellar mass-loss rates is to detect the soft X-ray emission from stellar astrospheres produced by charge exchange between heavy ions of the stellar ...
Manuel Guedel +2 more
exaly +5 more sources
On the Diversity of M-star Astrospheres and the Role of Galactic Cosmic Rays Within [PDF]
Astrophysical Journal Letters, 2020 Abstract With upcoming missions such as the James Webb Space Telescope, the European Extremely Large Telescope, and the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, we soon will be on the verge of detecting and characterizing Earth-like exoplanetary atmospheres for the first time.
Konstantin Herbst +2 more
exaly +3 more sources
On the 3D transport of galactic cosmic rays in a selection of exoplanet-hosting astrospheres: the influence of stellar rotation [PDF]
Monthly Notices of the Royal Astronomical SocietyGalactic cosmic rays (GCRs) may influence the habitability of exoplanets. The recently proposed relationship between GCR intensities at exoplanetary locations and the rotation periods of their host stars is here investigated for several M-dwarf ...
Konstantin Herbst +2 more
exaly +3 more sources