Results 151 to 160 of about 1,035 (178)

Plasma processing of interstellar PAHs into solar system kerogen

Planetary and Space Science, 1995
Processes resulting in the formation of hydrocarbons of carbonaceous chondrites and the identity of the interstellar molecular precursors involved are an objective of investigations into the origin of the solar system and perhaps even life on earth.
T J, Wdowiak, W, Lee, J, Cronin, L W, Beegle, M S, Robinson   +4 more
openaire   +2 more sources

Effects of the Interstellar Wind on the Interplanetary Plasma

1961
It is pointed out that the interstellar gas which passes through the solar system may affect the interplanetary gas, planetary atmospheres, and the orbits of satellites. This paper discusses the interaction of the interplanetary and interstellar gases via atomic collisions.
openaire   +1 more source

Scintillation as a tool for studying the interstellar plasma

Radiophysics and Quantum Electronics, 1994
The interstellar plasma is characterized by variations of electron density having a wide range of physical scales. Radiation propagating through this inhomogeneous plasma is scattered, causing the received intensity to scintillate on a variety of time scales.
openaire   +1 more source

Performance of the Cosmic Hot Interstellar Plasma Spectrometer

SPIE Proceedings, 2003
The Cosmic Hot interstellar Plasma Spectrometer (CHIPS), successfully launched on 2003 January 12, provides astronomers with an observatory dedicated to observation of the hot interstellar medium in the extreme ultraviolet. We describe here the otpical and photometric performance of the spectrograph based on calibrations of the individual components ...
Martin M. Sirk, Geoffrey A. Gaines, E. R. Taylor, Michael Sholl, Wiliam Marchant, Richelieu Hemphill, Randy A. Kimble, Timothy Sasseen, Mario R. Marckwordt, William Donakowski   +9 more
openaire   +1 more source

Ionic reactions in atmospheric, interstellar and laboratory plasmas

Contemporary Physics, 1988
Abstract The ionic reactions that can occur in ionized gases, and especially those in naturally-occurring low-temperature gaseous plasmas, are discussed. These reactions include several types of positive ion and negative ion reactions with molecules, ion-electron dissociative recombination reactions, electron attachment reactions and ion-ion mutual ...
Nigel G. Adams, David Smith
openaire   +1 more source

The electron density in clouds of turbulent interstellar plasma

Astronomy Reports, 2016
The dependence of the emission measure on the dispersion measure due to the Galactic background has been derived for 120 directions in the Galaxy. This analysis has yielded the mean electron density, effective thickness of the electron layer, and the volume filling factor of the clouds of ionized gas along the line of sight.
openaire   +1 more source

Ionic Processes in Low Temperature Interstellar Molecular Plasmas

AIP Conference Proceedings, 2002
Astrophysical plasmas vary widely in their temperatures and compositions. Some of the most tenuous, coldest, and spatially extensive are the diffuse and dense interstellar clouds, in the latter of which stars are forming. In these regions, including circumstellar shells, ∼130 molecules have been detected with ∼10% being ions.
openaire   +1 more source

Modeling of Nonlinear Wave Phenomena in Interstellar Superthermal Plasma

2022
Punam Kumari Prasad, Asit Saha
openaire   +1 more source

Plasma resonance in granular deposits of iron and interstellar dust

Applied Optics, 1978
M, Rasigni, J P, Palmari, G, Rasigni
openaire   +2 more sources

A theoretical study of elementary processes in interstellar plasma

Une étude théorique de processus élémentaires dans le plasma interstellaire Le plasma est le plus abondant des états de la matière — les étoiles, le vent solaire, et le milieu interstellaire sont considérés comme des plasmas. Des nuages de gaz et de poussière composant ce dernier sont une première étape importante de la formation des ...
openaire   +1 more source