Results 21 to 30 of about 1,386,229 (221)
Turbulence in the interstellar medium [PDF]
, 2014 Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L. +9 more
core +2 more sources
The charge-exchange induced coupling between plasma-gas counterflows in the heliosheath [PDF]
Annales Geophysicae, 2003 Many hydrodynamic models have been presented which give similar views of the interaction of the solar wind plasma bubble with the counterstreaming partially ionized interstellar medium.
H. J. Fahr
doaj +1 more source
Heating of the low-latitude solar wind by dissipation of turbulent magnetic fluctuations [PDF]
, 2001 We test a theory presented previously to account for the turbulent transport of magnetic fluctuation energy in the solar wind and the related dissipation and heating of the ambient ion population. This theory accounts for the injection of magnetic energy
Matthaeus, William H. +5 more
core +1 more source
Non-equilibrium ionisation plasmas in the interstellar medium [PDF]
Astrophysics and Space Science, 2021 AbstractObtaining astrophysical information from diffuse cool, warm and hot plasmas in interstellar and intergalactic media by electromagnetic radiation is based on highly non-linear heating and cooling processes, which are largely determined by atomic physical time scales and reaction rates. To calculate spectra is further complicated by gas dynamical
Dieter Breitschwerdt +1 more
openaire +1 more source
The Cygnus Loop: Shock Precursors and Electron–Ion Equilibration
The Astrophysical Journal, 2023 The outermost edges of some supernova remnants are marked by filaments of pure Balmer line emission produced by nonradiative shock fronts. The H α profiles of these filaments provide the shock speed and electron–proton temperature ratio in the shock.
John C. Raymond +7 more
doaj +1 more source
Solar wind heating by an embedded quasi-isothermal pick-up ion fluid [PDF]
Annales Geophysicae, 2002 It is well known that the solar wind plasma consists of primary ions of solar coronal origin and secondary ions of interstellar origin. Interstellar H-atoms penetrate into the inner heliosphere and when ionized there are converted into secondary ...
H. J. Fahr, H. J. Fahr
doaj +1 more source
The Astrophysical Journal, 2023 Interstellar neutral (ISN) helium atoms penetrating the heliosphere are used to find the flow velocity and temperature of the very local interstellar medium near the heliosphere.
P. Swaczyna +3 more
doaj +1 more source
INTERSTELLAR MEDIUM AND DECAMETER RADIO SPECTROSCOPY [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: The analytical review of the main results of research in the new direction of the low-frequency radio astronomy, the interstellar medium radio spectroscopy at decameter waves, which had led to astrophysical discovery, recording of the radio ...
S. V. Stepkin +3 more
doaj +1 more source
Interstellar turbulent magnetic field generation by plasma instabilities [PDF]
Astrophysics and Space Science, 2013 The maximum magnetic field strength generated by Weibel-type plasma instabilities is estimated for typical conditions in the interstellar medium. The relevant kinetic dispersion relations are evaluated by conducting a parameter study both for Maxwellian and for suprathermal particle distributions showing that micro Gauss magnetic fields can be ...
Tautz, R. C., Triptow, J.
openaire +2 more sources
A speckle hologram of the interstellar plasma
The Astrophysical Journal, 1992 Observations of a speckle hologram of scattering material along the line of sight to the Vela pulsar indicate that this material is concentrated in the Vela supernova remnant, deep within the Gum Nebula. The speckle hologram is observed through the amplitude and phase variations of the interferometric cross-power spectrum with time and frequency. These
K. M. Desai +8 more
openaire +1 more source