Models for interpreting the diffuse galactic light

Details Models for interpreting the diffuse galactic light Models for interpreting the diffuse galactic light

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....61....1b&link_type=abstract

Astronomy and Astrophysics, vol. 61, no. 1, Oct. 1977, p. 1-6.

Astronomy and Astrophysics

Astrophysics

2

Astronomical Models, Diffuse Radiation, Galactic Radiation, Light Sources, Cosmic Dust, Interstellar Matter, Star Distribution, Stellar Radiation

Scientific paper

The stars which act as primary light sources have a wider distribution perpendicularly to the galactic plane than the dust which causes the diffuse galactic light. This situation is approximated by a model in which a fraction F of the starlight is distributed in proportion to the dust and a fraction 1-F illuminates the dust layer from outside. Computations of the midlayer distribution of diffuse light with latitude are made for various combinations of the single-scattering albedo a and the asymmetry factor g. Curves with different F can in practice be matched if a or g are adjusted. Earlier analyses of observed data based on a model with F = 1 may have led to an underestimate of a and/or g.

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