Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94.1675m&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 94, Dec. 1987, p. 1675-1680.
Astronomy and Astrophysics
Astronomy
10
Astronomical Models, Interstellar Extinction, Periodic Variations, Spectral Energy Distribution, Ultraviolet Spectra, Error Analysis, Spaceborne Astronomy, Spectrum Analysis, Stellar Spectra
Scientific paper
The magnitude-limited survey provided by ANS satellite data is used to investigate the global variability of the shapes of UV extinction curves and the errors these variations introduce into the UV continua of reddened objects. Results show that although variations in UV extinction-curve shape are largest in regions of dense nebulosity, the errors incurred by using a mean curve to deredden an energy distribution are still significant. It is suggested that debumping should be avoided whenever a reliable E(B-V) is available, and that errors in dereddened UV colors can be reduced by employing a local mean extinction curve.
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