Results 21 to 30 of about 34,202 (211)
The Astrophysical Journal, 2003 The Sun is moving through a warm ($\sim$6500 K) and partly ionized local interstellar cloud (LIC) with a velocity of $\sim$26 km/s. Recent measurements of the ionization of the LIC (Wolff et al., 1999) suggest that interstellar helium in the vicinity of the Sun is 30-40 % ionized, while interstellar hydrogen is less ionized.
Izmodenov, Vlad +3 more
openaire +2 more sources
Variability of GRB Afterglows Due to Interstellar Turbulence [PDF]
, 1999 Gamma-Ray Burst (GRB) afterglows are commonly interpreted as synchrotron emission from a relativistic blast wave produced by a point explosion in an ambient medium, plausibly the interstellar medium of galaxies.
Abraham Loeb +3 more
core +2 more sources
Interstellar Dust Close to the Sun [PDF]
, 2012 The low density interstellar medium (ISM) close to the Sun and inside of the heliosphere provides a unique laboratory for studying interstellar dust grains.
AM Juett +37 more
core +2 more sources
Early Afterglows of Gamma-Ray Bursts in a Stratified Medium with a Power-Law Density Distribution [PDF]
, 2013 A long-duration gamma-ray burst (GRB) has been widely thought to arise from the collapse of a massive star, and it has been suggested that its ambient medium is a homogenous interstellar medium (ISM) or a stellar wind.
Dai, Zi-Gao, Wu, Xue-Feng, Yi, Shuang-Xi
core +1 more source
Interaction of pulsar winds with interstellar medium: numerical simulation [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 A time-dependent numerical simulation of relativistic wind interaction with interstellar medium was performed. The winds are ejected from the magnetosphere of rotation-powered pulsars. The particle flux in the winds is isotropic while the energy flux is strongly anisotropic. Pure hydrodynamical winds and magnetized winds with magnetization in the range
S. V. Bogovalov +3 more
openaire +1 more source
The Astrophysical Journal, 2023 In situ observations of interstellar neutral (ISN) helium atoms by the IBEX-Lo instrument on board the Interstellar Boundary Explorer (IBEX) mission are used to determine the velocity and temperature of the pristine very local interstellar medium (VLISM).
P. Swaczyna +10 more
doaj +1 more source
Galactic winds and circulation of the interstellar medium in dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We study, through 2D hydrodynamical simulations, the feedback of a starburst on the ISM of typical gas-rich dwarf galaxies. The main goal is to address the circulation of the ISM and metals following the starburst. We assume a single-phase rotating ISM in equilibrium in the galactic potential generated by a stellar disc and a spherical dark halo.
A. D'Ercole, F. Brighenti
openaire +1 more source
, 2013 Many evolved stars travel through space at supersonic velocities, which leads to the formation of bow shocks ahead of the star where the stellar wind collides with the interstellar medium (ISM).
Decin, Leen +2 more
core +3 more sources
Cosmic-ray driven galactic winds from the warm interstellar medium
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We study the properties of cosmic-ray (CR) driven galactic winds from the warm interstellar medium using idealized spherically symmetric time-dependent simulations. The key ingredients in the model are radiative cooling and CR-streaming-mediated heating of the gas.
Shaunak Modak +3 more
openaire +2 more sources
Computing the dust distribution in the bowshock of a fast moving, evolved star
, 2011 We study the hydrodynamical behavior occurring in the turbulent interaction zone of a fast moving red supergiant star, where the circumstellar and interstellar material collide.
Decin, Leen +3 more
core +2 more sources