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Title:
Tracing the Roots of Interstellar Mid Infrared Emission
Authors:
Jenniskens, P.; Desert, F. X.
Publication:
ASTRONOMY AND ASTROPHYSICS V.275, NO.2/AUG(II), P. 549, 1993 (A&A Homepage)
Publication Date:
08/1993
Origin:
KNUDSEN
A&A Keywords:
dust, extinction, infrared: interstellar: continuum, ultraviolet: interstellar, dust models
Bibliographic Code:
1993A&A...275..549J

Abstract

An attempt is made to link components of the interstellar extinction curve to mid infrared emission of interstellar dust. The IRAS mid-infrared emission has been sought for in the direction to all early type stars for which IUE extinction curves have been published. In 44 lines of sight we were able to obtain well defined colours. By comparing the extinction curve components with these IRAS colours, we find that the bump in the extinction curve at 0.218 μm, and not the linear rise or FUV nonlinear rise, is systematically weakened in lines of sight where the mid-infrared (12 micron) emitters have been removed.

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