Results 211 to 220 of about 3,998,903 (250)
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Infrared emission from interstellar plasma
Astrophysics and Space Science, 1988Small dust grains in hot interstellar plasmas are heated by electrons and emit near-infrared radiation. Its flux is estimated to be larger than that from small dust grains heated by stellar radiation and could explain the high infrared flux observed at wavelengths of about 5 µm.
S. Hayakawa
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Il Nuovo Cimento, 1959
Observational data and studies on material in the galactic system are reviewed. Mechanisms of radio emission are discussed relative to thermal radiation, synchrotron radiation, and the existence of non-thermal radiation. Observational data on the shell and the inner part of the Crab nebula are considered along with properties such as synchrotron ...
H. C. van de Hulst
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Observational data and studies on material in the galactic system are reviewed. Mechanisms of radio emission are discussed relative to thermal radiation, synchrotron radiation, and the existence of non-thermal radiation. Observational data on the shell and the inner part of the Crab nebula are considered along with properties such as synchrotron ...
H. C. van de Hulst
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Performance of the Cosmic Hot Interstellar Plasma Spectrometer
SPIE Proceedings, 2003The 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 ...
M. Sirk +9 more
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Plasma Diagnostics of the Interstellar Medium with Radio Astronomy [PDF]
Space Science Reviews, 2013 We discuss the degree to which radio propagation measurements diagnose conditions in the ionized gas of the interstellar medium (ISM). The "signal generators" of the radio waves of interest are extragalactic radio sources (quasars and radio galaxies), as well as Galactic sources, primarily pulsars.
Marijke Haverkorn
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Plasma processing of interstellar PAHs into solar system kerogen
Planetary and Space Science, 1995Processes 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 +4 more
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“Cold fusion”: Formation of molecules in interstellar plasmas
Plasma Physics and Controlled Fusion, 1992A brief overview is presented of the ionic reactions that occur in interstellar gas clouds which lead to the production of the complex molecules determined in those regions. It is shown that the interstellar clouds are weakly ionized plasmas and that the chemistry is largely plasma chemistry involving sequences of ion-molecule reactions producing ...
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Effects of the Interstellar Wind on the Interplanetary Plasma
1961It 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.
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Electromagnetic Instability of a Homogeneous Plasma in Interstellar Space
Technical Physics, 2005A study is made of an electromagnetic instability of a homogeneous plasma with an arbitrary velocity distribution in interstellar space on long time scales typical of gas-dust clouds without a significant magnetic field. It is shown that such instabilities develop on time scales of a few months or years and that it is only a narrow class of nearly ...
A S Baranov
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Scintillation as a tool for studying the interstellar plasma
Radiophysics and Quantum Electronics, 1994The 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.
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Ionic reactions in atmospheric, interstellar and laboratory plasmas
Contemporary Physics, 1988Abstract 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
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