Mid-infrared excess and ultraviolet extinction

Details Mid-infrared excess and ultraviolet extinction Mid-infrared excess and ultraviolet extinction

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...174..203c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 174, no. 1-2, March 1987, p. 203-210. Research supported by the Stichting Astr

Astronomy and Astrophysics

Astronomy

16

Cosmic Dust, Infrared Radiation, Interstellar Extinction, Ultraviolet Radiation, Infrared Astronomy Satellite

Scientific paper

Recent suggestions that the mid-infrared excess and the 2174 Å extinction bump have the same origin are investigated. For this purpose, correlations between the mid infrared excess and the ultraviolet extinction parameters are examined, using a sample of 61 stars reported to have peculiar extinction properties. No correlation is found between the mid-infrared excess and the ultraviolet extinction bump or the far ultraviolet extinction rise. This result suggests that the carriers of the ultraviolet bump and the mid-infrared emission are different.

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