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    H2 in expanding circumstellar shells

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    Chu_H2_In_Expanding_Circumstellar_Shells.pdf (244.2Kb)
    Issue Date
    1976-09-01
    Author
    Hollenbach, David
    Chu, Shih-I
    McCray, Richard
    Publisher
    American Astronomical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Hydrogen molecules are formed in the thin dense shell of interstellar gas swept up by the expanding interstellar bubble around an early-type star with a strong stellar wind. The formation of molecules on grains is not in equilibrium with photodestruction. Theoretical calculations of the column densities of H2 in rotational levels j = 0-6 agree reasonably well with Copernicus ultraviolet observations of some early-type stars. The model explains why no H2 features with column densities in the range from 10 to the 15th to 10 to the 18th power per sq cm have been observed.
    Description
    This is the published version, also available here: http://dx.doi.org/10.1086/154627.
    URI
    http://hdl.handle.net/1808/15826
    DOI
    https://doi.org/10.1086/154627
    Collections
    • Chemistry Scholarly Works [610]
    • Distinguished Professors Scholarly Works [918]
    Citation
    Hollenbach, D., Chu, Shih-I., McCray, R. "H2 in expanding circumstellar shells." Astrophysical Journal, vol. 208, Sept. 1, 1976, pt. 1, p. 458-467. http://dx.doi.org/10.1086/154627.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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