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The Nature of Interstellar Dust in Local Group Galaxies from Observations of Extinction and Polarization

  • Geoffrey C. Clayton
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 209)

Abstract

The assumption of Galactic Interstellar Dust properties in modeling the effects of Extragalactic Interstellar Dust will lead to large errors. Properties of Galactic dust have been amenable to study through observations of scattering and absorption along individual sightlines toward point sources, and through high spatial resolution observations of extended sources. Observations of Interstellar Dust in other galaxies are much more difficult since the light detected in a given aperture is the sum of a complex geometry of sources and dust which can only be separated using Radiative Transfer models. With the aid of NASA observatories such as Hubble Space Telescope (HST) and Astro-2, Interstellar Dust in Local Group galaxies can be subjected to the same kind of observations used to study Galactic dust. Individual sightlines can be observed at high spatial resolution allowing simple geometries to be studied.

Keywords

Wavelength Dependence Cloud Dust Hubble Space Telescope Radiative Transfer Model Magellanic Cloud 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Geoffrey C. Clayton
    • 1
  1. 1.Center for Astrophysics and Space AstronomyUniversity of ColoradoBoulderUSA

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