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Opacity Problems in Protostellar Objects

Published online by Cambridge University Press:  12 April 2016

Harold W. Yorke  and
Thomas Henning
Harold W. Yorke
Affiliation:
Institut für Astronomie und Astrophysik, Am Hubland, D-97074 Würzburg, Germany
Thomas Henning
Affiliation:
Max Planck Society, Research Group: “Dust in Star-Forming Regions”, Schillergäßchen 2-3, D-07745 Jena, Germany

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Opacity influences the transfer of radiation and is thus of decisive importance for (a) the interpretation of astronomical observations, (b) determining the thermal structure, (c) critically influencing molecular, atomic and thermonuclear processes and (d) affecting the overall dynamic evolution during the star formation process. Questions pertaining to the onset of instability of gas clouds, their subsequent fragmentation into smaller clumps, the formation of multiple systems, the initial mass function (IMF), the upper and lower mass limits, star formation efficiency and the fate of material not collected into stars cannot be considered without intimate knowledge of the opacity in this environment.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 146: Molecules in the Stellar Environment , 1994 , pp. 186 - 195
Copyright
Copyright © Springer-Verlag 1994

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