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J/PASP/108/772   uvby-β photometry of A and F southern stars (Perry+, 1996)

Interstellar reddening in the southern hemisphere. II. Analysis of the uvby-β observations. Perry C.L., Christodoulou D.M. <Publ. Astron. Soc. Pac. 108, 772 (1996)> =1996PASP..108..772P
ADC_Keywords: Stars, A-type ; Stars, F-type ; Photometry, uvby, beta Abstract: Photometric color excesses and distances plus heliocentric coordinates are calculated for 3762 southern A and early-F stars. The present results, combined with those previously published for the Northern Hemisphere, complete the coverage of the spatial distribution of interstellar reddening in the entire solar neighborhood. The new reddening maps show that the interstellar matter within 300pc of the Sun forms a single very large cloud complex that is somewhat asymmetrical with respect to both the galactic center and the galactic plane. This complex is characterized by pronounced local irregularities in both density and spatial extent. The observations further indicate that (1) the cloud complex is not associated with Gould's belt; (2) there exist large regions of the sky devoid of dust; (3) interstellar reddening is negligible at the galactic poles; (4) the role of intercloud dust in the Southern Hemisphere is minor although more important than in the Northern Hemisphere; (5) the Sun is not located in a dust-free, spherically symmetric bubble as previously thought; and (6) the Sun is, however, located in an elongated dust-free region known as the "local trough." File Summary: File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 66 3762 Catalog of dereddened uvby colors and computational data for southern A and F stars
See also: J/other/SAAOC/15.53 : Southern reddened luminous stars. II. (Kilkenny 1993) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HD HD (Cat. III/135) number 8- 13 F6.3 mag E(b-y) (b-y) colour excess 14- 18 F5.2 mag V0mag Dereddened V magnitude 19- 24 F6.3 mag (b-y)0 Dereddened Stroemgren (b-y) colour index 26- 30 F5.3 mag m0 Dereddened Stroemgren m0 magnitude 31- 36 F6.3 mag c0 Dereddened Stroemgren c0 colour index 38- 42 F5.2 [Sun] [Fe/H] ? Metallicity 43- 47 F5.2 mag VMAG Absolute V magnitude 49- 51 I3 pc r Distance from the Sun 53- 56 I4 pc x x coordinate (toward galactic rotation) 58- 61 I4 pc y y coordinate (toward galactic anticenter) 62- 66 I5 pc z z coordinate (toward North galactic pole)
History: Prepared via OCR at CDS. References: Perry, Paper I 1991PASP..103..494P
(End) James Marcout, Patricia Bauer [CDS] 06-Apr-2000
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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