Ultraviolet scattering properties and the size distribution of interstellar grains

Details Ultraviolet scattering properties and the size distribution of interstellar grains Ultraviolet scattering properties and the size distribution of interstellar grains

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..65...21w&link_type=abstract

(Lunar and Planetary Institute, Workshop on Thermodynamics and Kinetics of Dust Formation in the Space Medium, Houston, Tex., Se

Astronomy and Astrophysics

Astronomy

8

Interstellar Extinction, Interstellar Matter, Light Scattering, Nebulae, Particle Size Distribution, Ultraviolet Astronomy, Brightness, Optical Properties, Orion Nebula, Scattering Cross Sections

Scientific paper

Recent work related to the determination of the size distribution of interstellar grains is reviewed briefly. It is shown that the scattering properties of interstellar grains determined from ultraviolet observations of reflection nebulae point toward the existence of a bimodal size dis- tribution of grains, consisting of classical wavelength sized grains and a class of much more numerous smaller particles, which scatter far ultraviolet light isotropically with near unit albedo. The implications of this result are discussed briefly

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