II/175 Catalogue of 166 Ultraviolet Extinction Curves (Krelowski+ 1992)
Catalogue of 166 Ultraviolet Extinction Curves
Krelowski J., Papaj J., Wegner W.
Papaj J., Krelowski J. and Wegner W.
<Mon. Not. R. Astron. Soc., 252, 403 (1991)>
=1991MNRAS.252..403P 1991MNRAS.252..403P
ADC_Keywords: Photometry, ultraviolet
Description (from CDS):
The catalogue includes 166 extinction curves derived from low
resolution ultraviolet spectra. The sample contains stars earlier
than B6 (mainly dwarfs and giants), which were available in the set
of spectra obtained with the Sky Survey telescope (S2/68) in the ESRO
TD-1 satellite (Jamar et al. 1977, Cat. III/39; Macau-Hercot et al.
1978, Cat. II/86). The extinction curves cover the wavelength range
1360-2540Å (7.35-3.94um-1) and yielding 60 data points. They are
normalized to the broad band (∼300Å) photometric measurements
centered at 2740Å (3.65um-1). A special system of standards
("artificial standards - Papaj, Wegner and Krelowski
(1990MNRAS.246..408P 1990MNRAS.246..408P)) have been used. It made possible to calculate
extinction curves for reddening as small as E(B-V) ∼ 0.05. The
procedure has been fully described by Papaj, Wegner and Krelowski
(1991MNRAS.252..403P 1991MNRAS.252..403P). The catalogue may be useful both to obtain
intrinsic stellar atmosphere parameters (when dereddened spectra are
needed) and to determine properties of dust in single interstellar
clouds.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 97 166 Primary Data for Program Stars
extinct.dat 28 10013 Extinction Data
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See also:
III/39 : UV Bright Star Spectrophotometric Catalog (Jamar+, 1976)
II/59 : Catalogue of stellar UV fluxes (TD1) (Thompson+ 1978)
II/86 : UV Bright-Star Spectrophotometric Supplement (Macau-Hercot+ 1978)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD (Cat. III/135) number
9- 10 I2 h RAh Right Ascension J2000 (hours)
12- 13 I2 min RAm Right Ascension J2000 (minutes)
15- 18 F4.1 s RAs Right Ascension J2000 (seconds)
21 A1 --- DE- Declination J2000 (sign)
22- 23 I2 deg DEd Declination J2000 (degrees)
25- 26 I2 arcmin DEm Declination J2000 (')
28- 29 I2 arcsec DEs Declination J2000 (")
32- 37 F6.2 deg GLON Galactic longitude (in degrees)
40- 45 F6.2 deg GLAT Galactic latitude (in degrees)
48- 51 F4.2 mag Vmag Visual magnitude (V)
54- 61 A8 --- SpType Spectral and luminosity classes following the
best match of in resultant extinction curves
64- 78 A15 --- SpTypeL Spectral and luminosity classes taken from
the literature
81- 85 F5.2 mag B-V Observed color index B-V
88- 92 F5.3 mag E(B-V) Colour excess E(B-V) following our best match
95- 97 A3 --- Ref Codes for the source of spectroscopic and
photometric data (1)
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Note (1): references are numbered as follows:
1 = Hoffleit D., Jaschek C. (1982) "The Bright Star Catalogue",
Yale University Observatory, New Haven (Cat. V/50)
2 = Blanco V.M., Demers S., Douglass G.G., FitzGerald M.P. (1970)
Publications U.S. Naval Observatory, Second Series,
Vol. 21 (Cat. II/4)
3 = Kennedy P.M., Buscombe W. (1974)
"MK Spectral Classifications", Evanston 1974.
4 = Buscombe W. (1977) "MK Spectral Classifications", Evanston 1977.
5 = Mermilliod J.C., (1974)
"Catalogue of UBV photoelectric photometry".
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Byte-by-byte Description of file: extinct.dat
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Bytes Format Units Label Explanations
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2- 7 I6 --- HD HD number, as in file "stars.dat"
12- 17 F6.3 um-1 1/lambda Reciprocal wavelength in µm-1
19- 23 F5.2 --- Ext Extinction ratio E(λ-274nm)/E(B-V)
25- 28 F4.2 --- e_Ext Extinction error
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History:
* 02-Jul-1992: First version of the catalog (received from the author
on a floppy disk in February 1992)
* 14-Mar-2005: documentation standardized.
(End) Francois Ochsenbein [CDS] 14-Mar-2005