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J/AJ/87/1515        UBV photometry of AB stars in halo    (Pier, 1982)
Stars of spectral type A and B in the southern galactic halo. 
I. UBV photometry
    Pier J.R.
   <Astron. J. 87, 1515 (1982)>
   =1982AJ.....87.1515P
ADC_Keywords: Photometry, UBV ; Stars, halo


Description:
    The results of photoelectric UBV photometry of 234 AB stars in the
    southern galactic halo are presented. The stars were chosen from the
    Curtis Schmidt objective-prism survey of Preston and Shectman and
    comprise a sample of halo objects selected without kinematic bias. The
    majority of the stars lie in the region of the (U-B, B-V) plane
    occupied by field and globular cluster blue horizontal-branch stars.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table6.dat       100      233   UBV photometry


See also:
 J/ApJS/53/791   : Spectroscopy of AB stars in halo (Pier, 1983)
 J/AJ/90/2089    : Stars of very low metal abudance. (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/103/1987   : Stars of very low metal abundance (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: table6.dat

   Bytes Format  Units   Label    Explanations

   1-  2  A2     ---     ---      [CS]
   4- 12  A9     ---     BPS-CS   Curtis Schmidt plate number and the
                                  star number assigned by Preston designation
                                  as he scanned the plates
  14- 15  I2     h       RAh      Right ascension 1950
  17- 18  I2     min     RAm      Right ascension 1950
  20- 21  I2     s       RAs      Right ascension 1950
      23  A1     ---     DE-      Declination sign
  24- 25  I2     deg     DEd      Declination 1950
  27- 30  F4.1   arcmin  DEm      Declination 1950
  32- 36  F5.1   deg     GLON     Galactic longitude
  38- 42  F5.1   deg     GLAT     Galactic latitude
  44- 48  A5     ---     Class    Spectral and apparent brightness
                                   classifications assigned by Preston (1)
  50- 54  F5.2   mag     Vmag     V magnitude
  56- 60  F5.2   mag     B-V      B-V colour index
  62- 66  F5.2   mag     U-B      U-B colour index
      68  I1     ---     o_Vmag   Number of UBV observations
  71-100  A30    ---     Names    Other designations (2)

Note (1): b = bright, f = faint, m = medium, v= very

Note (2): The abbreviations are:
     PHL numbers are from Haro and Luyten (1962BOTT....3...37H)
     PS from table2 of Philip and Sanduleak (1968BOTT....4..253P)
     SB numbers from Slettebak and Brundage (1971AJ.....76..338S)
     TS numbers from the southern Tonantzintla list of Chavira (1958,
        Bol. Obs. Tonantzintla y Tacubaya 2, No. 17, 15, 1958BOTT....2q..15C)


References:
   Chavira E., 1958, Bol. Obs. Tonantzintla y Tacubaya 2, No. 17, 15
     (1958BOTT....2q..15C)
   Haro G. & Luyten W.J., 1962, Bol. Obs. Tonantzintla y Tacubaya 3, No. 22, 37
     (1962BOTT....3...37H, cat. III/74)
   Philip A.G.D. & Sanduleak N., 1968, Bol. Obs. Tonantzintla y
    Tacubaya 4. No. 30, 253 (1968BOTT....4..253P)
   Preston G.W. & Shectman S.A. 1979, Annual report of the Director,
    Hale Observatories (Carnegie Institution of Washington, Washinton, DC)
   Slettebak A. & Brundage R.K., 1971, Astron. J., 76, 338 (1971AJ.....76..338S)

Historical Notes: Keypunched at CDS

(End)                          James Marcout, Patricia Bauer [CDS]   02-Feb-1995