Correlations between optical/near-infrared and UV extinction parameters and the prediction of UV extinction from ground-based photometry

Details Correlations between optical/near-infrared and UV extinction parameters and the prediction of UV extinction from ground-based photometry Correlations between optical/near-infrared and UV extinction parameters and the prediction of UV extinction from ground-based photometry

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281b.215c&link_type=abstract

In ESA, Proceedings of the Celebratory Symposium on a Decade of UV Astronomy with the IUE Satellite, Volume 2 p 215-218 (SEE N89

Astronomy and Astrophysics

Astronomy

Infrared Spectra, Interstellar Extinction, Ultraviolet Absorption, Visible Spectrum, Iue, Spaceborne Astronomy, Stellar Spectrophotometry, Ultraviolet Astronomy, Ultraviolet Spectra, Variability

Scientific paper

An analysis of the variability of absolute UV extinction, A lambda derived through the ratio total-to-selective extinction, R Av/E(B-V), for 31 lines of sight for which UV extinction parameters were derived, is presented. For these data, which sample a wide range of environments and which are characterized by R = 2.5 to 6.0, differences in the shapes of UV extinction curves are largely due to variations in optical/near-UV extinction through changes in R. From this, it is found that UV extinction curves can be reproduced with reasonable accuracy by simply knowing R. Detection of an A2175/E(B-V) = 10 + or - 1 mag implies that the total extinction at 2175 A can be estimated from E(B-V) alone.

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