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Title: The origin of scattering in the inner galaxy
Authors: Anantharamaiah, K.R.
Narayan, R.
Keywords: Electron density (Concentration)
Galactic nuclei, H II regions
Radio scattering
Interstellar matter
Power spectra
Issue Date: 1988
Publisher: American Institute of Physics
Citation: Radio wave scattering in the interstellar medium; Proceedings of the AIP Conference, San Diego, CA, Jan. 18, 19, 1988, New York, American Institute of Physics, 1988, p185-189
Abstract: It is argued that the enhanced scattering of radiowaves observed at low Galactic longitude and latitude is caused by the low-density outer envelopes of H II regions in the inner 8 kpc of the Galaxy. A simple phenomenological theory is developed to estimate the strength of density fluctuations in a turbulent medium and apply the theory to the H II envelopes, using the densities and sizes determined from a recent 325-MHz recombination-line survey. The predicted values are in good agreement with the observations.
Description: Restricted Access.
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Copyright: 1988 American Institute of Physics
Appears in Collections:Research Papers (A&A)

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