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J/AJ/103/1987     Stars of very low metal abundance   (Beers+ 1992)

A search for stars of very low metal abundance. II. Beers T.C., Preston G.W., Shectman S.A. <Astron. J. 103, 1987 (1992)> =1992AJ....103.1987B
ADC_Keywords: Stars, metal-deficient; Equivalent widths; Radial velocities Description: Spectroscopic observations for 1044 stars located primarily in the southern Galactic hemisphere are reported; the stars were chosen from a list of candidate metal-deficient stars discovered in the HK objective-prism survey. Radial velocities and line indices based on the equivalent widths of Ca II, K, H-gamma and H-delta, and the CH G band are reported. Estimates of metallicity for 874 stars with derived abundances less than -0.5 are presented. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table5.dat 136 1044 Observational data, derived distances, and abundances
See also: J/AJ/87/1515 : UBV photometry of AB stars in halo (Pier, 1982) J/ApJS/53/791 : Spectroscopy of AB stars in halo (Pier, 1983) J/AJ/90/2089 : Stars of very low metal abundance. (Beers+, 1985) J/PASP/102/1392 : UBV photometry from HK survey. (Doinidis+ 1990) J/PASP/103/973 : Photoelectric UBV from HK survey. (Doidinis+ 1991) J/ApJS/76/1001 : UBV photometry of HK survey stars (Preston+, 1991) J/AJ/103/267 : Spectrocopy of hot stars in galactic halo (Beers+ 1992) J/AJ/108/268 : HK survey emission-line candidates positions (Beers+ 1994) J/AJ/108/538 : Metal-poor MS stars UBV photometry (Preston+ 1994) J/AJ/112/1188 : HK survey emission-line candidates (Beers+ 1996) J/AJ/117/2329 : Spectroscopy of hot stars in the halo. (Wilhelm+, 1999) J/ApJS/123/639 : UBV photometry of metal-weak candidates (Norris+, 1999) Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [CS] Curtis Schmidt 4- 12 A9 --- BPS-CS Star designation 14- 15 I2 h RAh Right Ascension 1950 (hours) 17- 18 I2 min RAm Right Ascension 1950 (minutes) 20- 23 F4.1 s RAs Right Ascension 1950 (seconds) 25 A1 --- DE- Declination 1950 (sign) 26- 27 I2 deg DEd Declination 1950 (degrees) 29- 30 I2 arcmin DEm Declination 1950 (minutes) 32- 33 I2 arcsec DEs Declination 1950 (seconds) 35- 39 F5.1 deg GLON Galactic longitude 41- 45 F5.1 deg GLAT Galactic latitude 47- 51 F5.2 mag Vmag ? Johnson V magnitude 53- 57 F5.2 mag B-V ? Johnson B-V color 59- 63 F5.2 mag U-B ? Johnson U-B color 65- 68 F4.2 mag E(B-V) B-V excess 70- 73 F4.2 mag BV ? BV color estimate, obtained from calibration of Balmer Index HP 75- 78 I4 km/s RV Radial velocity 80- 82 A3 --- Det Detector Identification: R = Reticon; F = 2D-Frutti; R/F = both 84- 88 F5.2 0.1nm KP CaII K equivalent width index KP (Angstroms) 90- 94 F5.2 0.1nm HP ? Balmer line equivalent width index HP (1) 96-100 F5.2 0.1nm GP ? G-band equivalent width index GP (Angstroms) 102-104 A3 --- Class Classification of stellar type 106-110 F5.2 mag Mv ? Absolute magnitude estimate 112-115 F4.1 kpc Dist ? Distance estimate (kpc) 117-121 F5.2 0.1nm Wk ? Interstellar CaII K estimate (as in Beers 1990AJ.....99..323B) 123-127 F5.2 Sun [Fe/H]k ? estimate from Norris models 129-133 F5.2 Sun [Fe/H]c ? adopted estimate 136 A1 --- D [D] indicates duplicity, see the list in the "Duplicated stars" section below.
Note (1): HP is an average of H lines: HP = -0.276 + 0.5Hδ + 0.588Hγ
Duplicated stars: CS 22173-002 = CS 30494- 4 CS 22173-007 = CS 30494- 20 CS 22173-014 = CS 30494- 15 CS 22173-015 = CS 30494- 40 CS 22173-021 = CS 30494- 33 CS 22886-008 = CS 29512- 6 CS 22886-012 = CS 29512- 15 CS 22886-013 = CS 29512- 13 CS 22886-022 = CS 29512- 18 CS 22886-029 = CS 29512- 27 CS 22886-042 = CS 29512- 51 CS 22888-014 = CS 30493- 23 CS 22888-039 = CS 30493- 56 CS 22937-034 = CS 30492- 56 CS 22937-042 = CS 30492- 76 CS 22937-072 = CS 30492-102 = CS 29501- 51 CS 22937-073 = CS 29501- 52 CS 29513-016 = CS 30493- 74 References: Beers et al., Paper I, 1985AJ.....90.2089B, Cat. J/AJ/90/2089 Norris et al., Paper III, 1999ApJS..123..639N, Cat. J/ApJS/123/639 Anthony-Twarog et al., Paper IV, 2000AJ....119.2882A Bonifacio et al., Paper V, 2000AJ....120.2065B Roederer et al., Paper VI, 2014AJ....147..136R, Cat. J/AJ/147/136 History: * 21-Apr-1993: the catalog was kindly provided by T. Beers to N. Roman (ADC) * 11-Dec-1997: the CS numbers have been filled with zeroes. * 17-Dec-2005: ReadMe revisited
(End) Francois Ochsenbein [CDS] 15-Dec-1993
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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