Galactic distribution of electron density turbulence

Details Galactic distribution of electron density turbulence Galactic distribution of electron density turbulence

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aipc..174..180c&link_type=abstract

IN: Radio wave scattering in the interstellar medium; Proceedings of the AIP Conference, San Diego, CA, Jan. 18, 19, 1988 (A89-2

Astronomy and Astrophysics

Astronomy

14

Electron Density Profiles, Interstellar Matter, Magnetohydrodynamic Turbulence, Mass Distribution, Galactic Nuclei, Galactic Structure, Power Spectra, Pulsars, Shock Waves

Scientific paper

Scintillation and angular-broadening measurements are used to estimate the spectral coefficient of the electron-density power spectrum. Relevant length scales are less than about 10 to the 11th cm. Line-of-sight averages of the index vary by almost 5 orders of magnitude, and it is likely that local variations are much larger. Study of 150 lines of sight supports the existence of a diffuse distribution of scattering material with large scale height (0.5 kpc) combined with clumps of intense turbulence having a small scale height (0.1 kpc). The diffuse component appears to have a galactocentric radial extent of about 7 kpc.

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