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Title:
Interstellar Dust Scattering Properties
Authors:
Gordon, K. D.
Publication:
Astrophysics of Dust, ASP Conference Series, Vol. 309,Proceedings of the conference held 26-30 May, 2003 in Estes Park, Colorado. Edited by Adolf N. Witt, Geoffrey C. Clayton and Bruce T. Draine., p.77
Publication Date:
05/2004
Origin:
ASP
Bibliographic Code:
2004ASPC..309...77G

Abstract

Studies of dust scattering properties in astrophysical objects with Milky Way interstellar dust are reviewed. Such objects are reflection nebulae, dark clouds, and the Diffuse Galactic Light (DGL). To ensure their basic quality, studies had to satisfy four basic criteria to be included in this review. These four criteria significantly reduced the scatter in dust properties measurements, especially in the case of the DGL. Determinations of dust scattering properties were found to be internally consistent for each object type as well as consistent between object types. The 2175 Å bump is seen as an absorption feature. Comparisons with dust grain models find general agreement with significant disagreements at particular wavelengths (especially in the far-ultraviolet). Finally, unanswered questions and future directions are enumerated.

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