Interstellar graphite grain temperature and infrared optical constants

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...

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Bibliographic Details
Published in:Astrophysics and space science 1977-09, Vol.51 (1), p.111-116
Main Authors: Aiello, S., Mencaraglia, F.
Format: Article
Language:English
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Summary: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.
ISSN:0004-640X
1572-946X
DOI:10.1007/BF00642459