Astrophysics and Space Science

, Volume 6, Issue 3, pp 422–435 | Cite as

The development of a cocoon star

  • Kris Davidson
Article

Abstract

A newly-formed massive star is likely to be surrounded by dense gas and dust as it approaches the main sequence. Radiation pressure must push some of the inner material outward before the star begins to produce ionizing radiation; this affects the formation of theHii region. A remarkably dense ‘dust front’ may precede the ionization front.

The observable radio and infrared spectra are discussed. If the dust cloud is composed of small graphite grains, extraordinarily large far-infrared fluxes are possible.

Keywords

Radiation Dust Graphite Infrared Spectrum Radiation Pressure 

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Copyright information

© D. Reidel Publishing Company 1970

Authors and Affiliations

  • Kris Davidson
    • 1
  1. 1.Center for Radiophysics and Space ResearchCornell UniversityIthacaUSA

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