Interstellar graphite grain temperature and infrared optical constants

Details Interstellar graphite grain temperature and infrared optical constants Interstellar graphite grain temperature and infrared optical constants

Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..51..111a&link_type=abstract

Astrophysics and Space Science, vol. 51, no. 1, Sept. 1977, p. 111-116.

Astronomy and Astrophysics

Astrophysics

2

Cosmic Dust, Graphite, Infrared Radiation, Interstellar Matter, Optical Properties, Temperature Distribution, Extrapolation, Granular Materials, Interstellar Radiation, Thermal Radiation

Scientific paper

The temperature of graphite grains in the interstellar medium has been computed with different assumptions on the extrapolation of its optical constants into the infrared. It is found that values computed up to now are generally underestimated by 10-20 percent for normal interstellar conditions. For extreme conditions (very dark clouds) errors by a factor of two are possible, and more attention has to be paid to problems related to molecule formation.

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