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III/122     Interstellar 217-nm Band: Equivalent Widths   (Friedemann+ 1987)

The Interstellar 217-nm Band: A Third Catalogue of Equivalent Widths Friedemann C., Roder U.K. <Astron. Nachr. 308, 41 (1987)> =1987AN....308...41F
ADC_Keywords: Equivalent widths; Interstellar medium Abstract: Using the data obtained with the ultraviolet photometer in the Astronomical Netherlands Satellite, the equivalent widths of the interstellar 217 nm band as well as other parameters characterizing the behavior of the continuous interstellar extinction in the wavelength region of the band have been derived for 790 O, B stars with color excesses E(B-V) ≥ 0.4 mag. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file data.dat 53 790 Equivalent width data
Byte-by-byte Description of file: data.dat
Bytes Format Units Label Explanations
1- 9 A9 --- ID *HD or BD Identification 11- 14 F4.2 mag E(B-V) E(B-V) Color excess 16- 21 F6.3 --- alpha *α parameter 23- 28 F6.3 --- beta *β parameter 30- 35 F6.3 --- gamma *γ parameter 37- 40 I4 0.1nm W Equivalent width in Angstroms 42- 44 I3 10-3mag S2200 *Standard deviation (Wesselius et al. 1982) 46- 47 I2 --- N Number of separate observations (Ibid.) 49- 53 A5 --- rem *Remarks
Note on ID: HD is right justified to byte 6. BD zone appears in bytes 1-3. BD number is right justified to byte 9. Note on alpha beta gamma: Parameters as defined in Gurtler et al. (1982). Actual values are in Friedemann and Roder (1987) derived from ANS data compiled by Wesselius et al. (1982). Each is given in units of microns to the power of 5/3. Note on S2200: Standard deviation in 0.001mag in the 2200 A band according to Wesselius et al. (1982) Note on rem: 3 = common star with an entry in the catalog compiled by Dorschner et al. (1984) 4 = at least two stars are present within one arcminute of the pointing position 5 = ultraviolet results indicate variability 50 = suspected variable 6 = equivalent width W deviates two to three times the standard deviation of the mean relation W ∼ E(B-V) 70 = possibly a deviating extinction law 8 = lying in a cluster that probably affects the ultraviolet data 9 = equivalent width W deviates at least three times the standard deviation from the mean relation W ∼ E(B-V)
Remarks: Supersedes III/95 Superseded by III/164 References: Friedemann C. 1987, Bull. Inf. CDS No. 32. Friedemann C. and Roder U.K. 1987, Astron. Nachr. 308, 41. Gurtler J., Schielicke R., Dorschner J. and Friedemann C. 1982, Astron. Nachr., 303, 105. Wesselius P.R., van Duinen R.J., de Jonge A.R.W., Aalders J.W.G, Luinge W., Wildeman K.J. 1982, Astron. Astrophys. Suppl. Ser., 49, 427.
(End) Julie Anne Watko [SSDOO/ADC] 15-Aug-1996
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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