AAO Colloquium.
Friday, 13th August 2004 - 3:30 AAO Conference Room
Attenuation in isothermal turbulent media
Dr. Joerg Fischera ANU
Our ability to correct the observational photometry of galaxies depends
upon our knowledge of the attenuation of light produced by the dust
contained in the interstellar medium.
I will present a model based on the statistical properties of the local
density in isothermal turbulence which might be appropriate to study the
radiative transport through the diffuse interstellar medium. The model
will be applied to study the attenuation caused by a distant foreground
screen and a non scattering slab where the sources are mixed within the
turbulent medium. I will show how the turbulent structure effects
the attenuation curve and how the attenuation curve varies with the
thickness of a foreground screen.
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