The spatial dependence of dust emission in photodissociation regions

Details The spatial dependence of dust emission in photodissociation regions The spatial dependence of dust emission in photodissociation regions

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.253..505d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 253, Dec. 1, 1991, p. 505-508. Research supported by NS

Astronomy and Astrophysics

Astronomy

8

Cosmic Dust, Hydrogen Atoms, Molecular Clouds, Photodissociation, Spatial Dependencies, Ultraviolet Radiation, Optical Properties, Radiation Distribution, Star Formation

Scientific paper

The behavior of amorphous carbon dust in photodissociation regions is described. The optical properties of such dust are affected by the competing processes of H-atom addition and UV irradiation. Several predictions of the model should be tested observationally. These include the variation with distance from the exciting star of the peak wavelength of Extended Red Emission (ERE); the anticorrelation of near-IR continuum and the ERE intensity; and the association of ERE with 3.4-micron emission. It is suggested that intense localized 3.4-micron emission may occur close to the exciting star.

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