CDROM/APJS/V103/P433 Horizontal-Branch and A-Type Star Catalog. II (Beers+ 1996) ================================================================================ A Catalog of Candidate Field Horizontal-Branch and A-Type Stars. II. Timothy C. Beers, Ronald Wilhelm, Stephen P. Doinidis, and Caroline J. Mattson <1996, ApJS, 103, 433> =1996ApJS..103..433B ================================================================================ Abstract: We present coordinates and brightness estimates for 4175 candidate field horizontal-branch and A-type stars, in the magnitude range 10 <= B <= 15.5, selected using an objective-prism/interference-filter survey technique. The candidates lie primarily in the northern Galactic hemisphere and complement a previously published sample of southern Galactic hemisphere candidates. Available spectroscopy and photometry indicates that the great majority of the candidates are likely to be bona fide members of either the field blue horizontal- branch population or the blue, metal-deficient, high surface gravity stars referred to by Preston, Beers, & Schectman [1994, AJ, 108, 538] as BMP stars. The remaining stars in the catalog are likely to be a mix of metal-deficient turnoff stars, metallic-line (Am) stars, field red horizontal-branch stars, optical doubles with overlapping objective-prism spectra, and (particularly among the fainter candidates) inadvertently included late-type stars. Keywords: catalogs -- stars: horizontal-branch File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table3.dat 49 4310 Candidate Field Horizontal-Branch and A-Type Stars -------------------------------------------------------------------------------- Byte-per-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 5 I5 --- Plate *Plate ID 6 1X --- --- Blank 7-10 I4 --- Star Star number on the Plate 11 1X --- --- Blank 12-13 A2 --- Class [AB] Classification, A or AB 14 1X --- --- Blank 15-16 A2 --- Bright *Brightness classification 17-19 I3 h RAh Right ascension (1950.0) 20-22 I3 min RAm R.A. 23-27 F5.1 s RAs R.A. 28 1X --- --- Blank 29 A1 --- DE- Declination sign 30-31 I2 deg DEd Declination (1950.0) 32-34 I3 arcmin DEm Dec. 35-37 I3 arcsec DEs Dec. 38-43 F6.1 deg GLat Galactic latitude 44-49 F6.1 deg GLon Galactic longitude -------------------------------------------------------------------------------- Notes for file: table3.dat -------------------------------------------------------------------------------- Plate: A 5-digit integer indicating the Burrell Schmidt HK objective-prism/interference-filter plate number on which the star is located. Bright: Seven brightness classes are used: very bright (vb), bright (b), medium bright (mb), medium (m), medium faint (mf), faint (f), and very faint (vf). Stars which are judged to be ideally exposed are grouped into brightness class m; stars brighter or fainter than the ideal case are divided into the remaining classes. As a result, the true apparent magnitudes of the catalog stars within any brightness class will vary somewhat from plate to plate. -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 03-May-96