Galactic survey of interstellar abundances and selective extinction with IUE and IRAS

Details Galactic survey of interstellar abundances and selective extinction with IUE and IRAS Galactic survey of interstellar abundances and selective extinction with IUE and IRAS

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281b.219v&link_type=abstract

In ESA, Proceedings of the Celebratory Symposium on a Decade of UV Astronomy with the IUE Satellite, Volume 2 p 219-222 (SEE N89

Astronomy and Astrophysics

Astronomy

5

Interstellar Chemistry, Interstellar Extinction, Interstellar Gas, Iue, Ultraviolet Astronomy, Ultraviolet Spectra, Abundance, Infrared Astronomy Satellite, Infrared Spectra, Spaceborne Astronomy

Scientific paper

High resolution IUE spectra were used to derive ultraviolet extinction curves in the interstellar medium. Results confirm those of other surveys. The amount of gas, the dust temperature, and infrared cirrus emission do not alter the overall shape of the UV curve, but they do change the zero point. Cloud (grain) history may affect the overall slope of the UV extinction curve. The UV bump strength is related to the amount of far ultraviolet curvature. The bump strength appears to depend on the depletion of Mn and Zn but not on Si or Fe. The bump wavelength varies with the linear background of extinction.

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