J/ApJS/103/433 Horizontal-branch and A-type star catalog. II (Beers+ 1996)
A catalog of candidate field horizontal-branch and A-type stars. II.
Beers T.C., Wilhelm R., Doinidis S.P., Mattson C.J.
<Astrophys. J. Suppl. Ser. 103, 433 (1996)>
=1996ApJS..103..433B 1996ApJS..103..433B
ADC_Keywords: Stars, horizontal branch ; Stars, A-type
Keywords: catalogs - stars: horizontal-branch
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 (1994AJ....108..538P 1994AJ....108..538P)
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.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 49 4310 Candidate Field Horizontal-Branch and A-Type
Stars
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Byte-per-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- Plate *Plate ID
7- 10 I4 --- Star Star number on the Plate
12- 13 A2 --- Class [AB ] Classification, A or AB
15- 16 A2 --- Bright *Brightness classification
18- 19 I2 h RAh Right ascension (1950.0)
21- 22 I2 min RAm Right ascension (1950.0)
24- 27 F4.1 s RAs Right ascension (1950.0)
29 A1 --- DE- Declination sign
30- 31 I2 deg DEd Declination (1950.0)
33- 34 I2 arcmin DEm Declination (1950.0)
36- 37 I2 arcsec DEs Declination (1950.0)
39- 43 F5.1 deg GLAT [0/360] Galactic latitude
45- 49 F5.1 deg GLON [-90/90] Galactic longitude
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Note on Plate:
A 5-digit integer indicating the Burrell Schmidt HK
objective-prism/interference-filter plate number on which the star
is located.
Note on 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.
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Refernces:
Beers T.C. et al., (Paper I) ApJS 67, 461 =1988ApJS...67..461B 1988ApJS...67..461B
Origin: AAS CD-ROM series, Volume 6, 1996 Lee Brotzman [ADS] 03-May-96
(End) [CDS] 06-Sep-1996