/ftp/cats/3/164



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III/164     Catalog of Eq.Widths of Interstellar 217nm Band (Friedemann 1992)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	catalog.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=III/164
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Beginning of ReadMe : III/164 Catalog of Eq.Widths of Interstellar 217nm Band (Friedemann 1992) ================================================================================ A Master Catalogue of Equivalent Widths of the Interstellar 217nm band Friedemann C. <CDS Inf. Bull., No. 40, p. 31 (1992)> =1992BICDS..40...31F ================================================================================ ADC_Keywords: Equivalent widths; Interstellar medium; Spectra, ultraviolet; Photometry, ultraviolet Description: (from CDS Inf. Bull. 40, 31) The main task of the catalogue consists in a comprehensive collection of equivalent widths of the 217nm band derived from both spectrophotometric and filterphotometric measurements obtained with TD-1, OAO-2 and ANS satellites. These data concern reddened O, B stars with color excesses E(B-V) >= 0.02 mag. The extinction curve is approximated by the empirical formula introduced by Guertler et al. (1982AN....303..105G) e(lambda) = A(i/lambda - 1/lambdao)^n^ + B + C kappa(lambda) The relative errors amount to about deltaA/A = +/- 0.10, deltaB/B = +/- 0.02 and deltaC/C = +/- 0.03.