Results 11 to 20 of about 705 (177)
Stellar Winds and the Interstellar Medium [PDF]
Highlights of Astronomy, 1983 AbstractTheoretical models for the interaction of stellar winds and the interstellar medium are described. Stellar wind energy sources are listed, and observations of expanding shells around stars and star clusters are reviewed. Giant expanding shells, or “superbubbles,” with radius > 100 pc, are formed by the combined action of stellar winds and ...
openaire +1 more source
Asymmetric mass-loss from the white dwarf WD 0253+209 : Secret revealed
Bibechana, 2012 Dust structures around the white dwarf WD 0253+209 is studied in 100 and 60 micron infrared image. These images are received from Infrared Astronomical Satellite Survey (IRAS Survey).
Binil Aryal
doaj +3 more sources
The Astrophysical Journal, 2023 The Voyager spacecraft are providing the first in situ measurements of physical properties in the outer heliosphere beyond the heliopause. These data, together with data from the IBEX and Hubble Space Telescope and physical models consistent with these ...
Jeffrey L. Linsky, Eberhard Moebius
doaj +1 more source
Studying particle acceleration from driven magnetic reconnection at the termination shock of a relativistic striped wind using particle-in-cell simulations [PDF]
EPJ Web of Conferences, 2020 A rotating pulsar creates a surrounding pulsar wind nebula (PWN) by steadily releasing an energetic wind into the interior of the expanding shockwave of supernova remnant or interstellar medium.
Lu Yingchao +5 more
doaj +1 more source
The Role of Electrons and Helium Atoms in Global Modeling of the Heliosphere
The Astrophysical Journal, 2023 We present a new three-dimensional, MHD-plasma/kinetic-neutrals model of the solar wind (SW) interaction with the local interstellar medium (LISM), which self-consistently includes neutral hydrogen and helium atoms.
F. Fraternale +2 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2022 Turbulence is ubiquitous in space plasmas. It is one of the most important subjects in heliospheric physics, as it plays a fundamental role in the solar wind—local interstellar medium interaction and in controlling energetic particle transport and ...
Federico Fraternale +11 more
doaj +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
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
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
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