Results 141 to 150 of about 1,035 (178)

Physics-tailored machine learning reveals unexpected physics in dusty plasmas. [PDF]

Proc Natl Acad Sci U S A
Yu W, Abdelaleem E, Nemenman I, Burton JC.   +3 more
europepmc   +1 more source

Uncovering the integral spectral characteristics of the planetary nebula IC 4642. [PDF]

Sci Rep
Mohery M, Ali A, Hamam KA, Khames AA, Alsubaie AS.   +4 more
europepmc   +1 more source

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Interstellar scintillation and the interstellar turbulent plasma

Astronomical and Astrophysical Transactions, 2002
Data on interstellar diffractive and refractive scintillation of pulsars are analyzed. The comparison between the theory and the observational data shows that two types of spectra for electron density fluctuations are realized in the interstellar medium: simple power law and piecewise with a break. The distribution of turbulent plasma in the Galaxy has
V I Shishov
exaly   +2 more sources

In Situ Observations of Interstellar Plasma with Voyager 1

Science, 2013
Finally Out Last summer, it was not clear if the Voyager 1 spacecraft had finally crossed the heliopause—the boundary between the heliosphere and interstellar space. Gurnett et al. (p.
William Kurth
exaly   +3 more sources

Radio Propagation Through the Turbulent Interstellar Plasma

Annual Review of Astronomy and Astrophysics, 1990
Article de synthese traitant de la diffusion interstellaire et des plasmas turbulents dans le milieu ...
B J Rickett
exaly   +2 more sources

Electromagnetic Instability of a Homogeneous Plasma in Interstellar Space

Technical Physics, 2005
A 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, Baranov A S
exaly   +2 more sources

The interstellar plasma

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 ...
openaire   +1 more source

Infrared Emission From Interstellar Plasma

Astrophysics and Space Science, 1988
Small 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.
openaire   +1 more source

The outer turbulence scale in the interstellar plasma

Astronomy Reports, 2002
The structure function for phase fluctuations on spatial scales from 106 to 1017 m is constructed using data on diffractive and refractive scintillation of pulsars, scattering angles, variations in pulse arrival times, and differences in dispersion measures observed for close pairs of pulsars in globular clusters.
V. I. Shishov, T. V. Smirnova
openaire   +1 more source

“Cold fusion”: Formation of molecules in interstellar plasmas

Plasma Physics and Controlled Fusion, 1992
A 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 ...
openaire   +1 more source