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: http://www.stsci.edu/~kgordon/Dust/Scat_Param/scat_data.html
Дата изменения: Tue Nov 28 19:52:42 2006 Дата индексирования: Tue May 27 07:47:38 2008 Кодировка: Поисковые слова: movie |
This is a tabulation of interstellar dust scattering properties dertermined from observations of various astrophysical objects (eg., DGL, reflection nebulae, etc.). Almost all studies in this field aim to determine the single scattering albedo (a) and scattering phase function asymmetry (g = <cos(α)>) as different wavelengths. While each study is subject to various limitations related to the assumed distribution of dust and stars, the intersection of the studies of different objects should be robust. The tabulation of results is broken up by object type to allow for physical different dust in different regions. In addition, this allows for probes of uncertainies in the different models for different objects.
Object Type | Example Image | a | g |
---|---|---|---|
Reflection Nebulae
Strengths: Bright Simple Geometries Weaknesses: Emissions (ERE, NIR dust) strong High density regions (RV > 3.1) Plot Details |
![]() from K. Gordon & A. Urban (BVR) |
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Dark Clouds
Strengths: Simple Geometries Emissions (ERE, NIR dust) surpressed Weaknesses: Faint High density regions (RV > 3.1) Plot Details |
![]() from DSS B band |
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Diffuse Galactic Light
Strengths: Diffuse interstellar dust (RV = 3.1) Weaknesses: Faint Complicated Geometries Plot Details |
![]() from Schiminovich et al. 2001 |
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Plot details links to a page describing the studies included in the plot, the radiative transfer model used in each study, and an ascii listing of data plotted.
Copyright © 2003-2006
Karl D. Gordon
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