Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ptep.proc....1s&link_type=abstract
Plasma Turbulence and Energetic Particles in Astrophysics, Proceedings of the International Conference, Cracow (Poland), 5-10 Se
Astronomy and Astrophysics
Astrophysics
4
Scientific paper
A discussion is given of the results of radio wave propagation observations within the context of the multiphase structure of the interstellar medium. The observed phenomenon discussed is Interstellar Scintillations, or ISS. Results from similar radio studies of the solar wind help us interpret the data from the interstellar medium. Radio propagation observations can measure both the spectral form and the intensity of turbulence in the interstellar medium on spatial scales from tens of kilometers to 100 astronomical units. A number of major observational results from ISS are listed. Perhaps the primary is the evidence for a roughly power law spectrum of irregularities which extends over many decades of spatial scale. Outstanding goals for the future, as well as present paradoxes and inconsistencies are enumerated and discussed. The primary goal for work in the near term will be to improve on the presently inchoate understanding of the processes which generate the interstellar turbulence.
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