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II/239             A search for faint blue stars.           (Berger+, 1977-84)
A search for faint blue stars in high galactic latitudes.
I. Nine PSS fields near the North Galactic Pole.
II. Fourteen PSS fields at declinations +6 and 0 near the South Galactic Pole.
III. Twelve PSS fields at declinations -6 and -12 near the South Galactic Pole.
    Berger J., Fringant A.M.
   <Astron. Astrophys. Suppl. Ser. 28, 123 (1977)>
   <Astron. Astrophys. Suppl. Ser. 39, 39 (1980)>
   <Astron. Astrophys. Suppl. Ser. 58, 565 (1984)>
   =1977A&AS...28..123B
   =1980A&AS...39...39B
   =1984A&AS...58..565B
ADC_Keywords: Stars, blue ; Stars, faint ; Stars, faint blue ; QSOs

Keywords: blue stars - blue objects - catalogue - galactic halo -
          quasars: general

Description:
    Continuing  the survey for faint blue stars at high galactic latitudes
    of  Haro and  Luyten (1962,   Cat.  III/74,   this search  was made,
    following  the Tonantzintla three image method,  with the 48"  Schmidt
    telescope of  Mt.  Palomar.  In the first  paper,  a catalogue of 4431
    stars and 84 compact objects found in nine PSS fields scattered around
    the NGP is presented,  with  the  1950  positions  and  the  estimated
    magnitudes  and colour classes.  The catalogue contains also extensive
    identifications with previous surveys,  including some known QSSs;  16
    QSS candidates  are proposed;  spectra  are available for  most of the
    unknown stars brighter than 14mag.

    In the second paper, a catalogue of 2011 stars and compact objects is
    presented with the 1950 positions and the estimated magnitude and
    colour classes. Complementary to the catalogue of Haro and Luyten
    (1962BITon...3...37H) at declination +6° and 0° it contains
    also extensive identifications with previous surveys and known QSO's;
    candidate QSO's are indicated; spectra are available for some new blue
    stars.

    The third and last part of the survey of faint blue objects contains a
    catalogue of 2484 starlike or compact objects is presented with the
    1950 positions, estimated magnitudes, color classes and extensive
    identifications with stars of previous surveys and known QSO's.

    The three parts were merged into a single file "catalog.dat".

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
catalog.dat       48     9010   Catalog
notes.dat         80     1012   Individual notes


See also:
    III/74 : Faint Blue Stars near the South Galactic Pole (Haro+ 1962)


Byte-by-byte Description of file: catalog.dat

   Bytes Format Units   Label     Explanations

   1-  4  I4    ---     PB        [1/9495]+ PB number
   7-  8  I2    h       RAh       Right ascension (1950)
  10- 11  I2    min     RAm       Right ascension (1950)
  13- 14  I2    s       RAs       Right ascension (1950)
      17  A1    ---     DE-       Declination sign (1950)
  18- 19  I2    deg     DEd       Declination (1950)
  21- 24  F4.1  arcmin  DEm       Declination (1950)
      25  A1    ---     u_DEm     Uncertainty flag on DEm
  27- 30  F4.1  mag     Bmag      Estimated B magnitude (step of 0.5mag)
  32- 34  A3    ---     Uclass    [I ] Colour class from I (UV-richest objects)
                                       to III (not systematically included)
      36  A1    ---     Note      [*] *: note detailed in notes.dat file
  38- 47  A10   ---     Remark    Remarks about identification with previously
                                  known objects, and/or nature of the
                                  non-stellar like object (1)

Note (1): Nature of the object:
      GALAXY (for large diameters)
      QSO, QSS (quasi-stellar object)
      CP.OBJ. (compact object, if diameter are 2"-5")
      M.CP.OBJ. (moderately compact object, if diameters are 5"-10")
    Catalogues acronyms are:
    5C   : Wilson (1970MNRAS.151....1W)
    A2   : Barbieri and Rosino (1972Ap&SS..16..324B)
    A3   : Barbieri and Benvenuti (1974A&AS...13..269B)
    BD   : Argelander, Cat. I/122
    CII  : Table II of Cowley (1958AJ.....63..484C)
    F    : Feige (1958ApJ...128..267F)
    G    : Giclas et al. (1971LowPM.C......0G, Cat. I/79)
    GD   : Giclas et al. (1965LowOB...6..155G, 1967LowOB...7...49G)
    HZ   : Humason and Zwicky (1947ApJ...105...85H)
    LB   : Luyten (1952 to 1959, A search for faint blue stars, Obs.
           University of Minnesota, Minneapolis)
    LP   : Luyten Proper Motion stars
    RMB  : Rubin et al. (1967AJ.....72...59R)
    SSII : Table II of Slettebak and Stock (1959AAHam...5..105S)
    TN   : Tonantzinla NGP: Iriarte and Chavira (1957BOTT....2r...3C),
           Chavira (1959BOTT....2r...3C)
    W    : Weistrop (1973A&A....23..215W)
    ZL   : Zwicky and Luyten (A search for faint blue stars, Obs.
           University of Minnesota, vol. 45: 1967LB....C45....0Z)


Byte-by-byte Description of file: notes.dat

   Bytes Format Units   Label     Explanations

   1-  4  I4    ---     PB        PB number
   6- 80  A75   ---     Note      Text of the note (1)

Note (1): Abbreviations used:
    Spectra: U: coude 193cm telescope
             B: Chalonge's spectrograph
            GD: Pediscou spectrograph (no relation with Giclas stars GD)
    Colour classes are designated by lowercase b, a, f, g, k, or m ;

    The acronyms used for designations of the objects are:
    CGCG = A catalogue of Galaxies and Cluster of Galaxies,
            Zwicky et al., 1961-1968, Cat. VII/49
    F    = Feige (1958ApJ...128..267F)
    G    = Giclas et al., "The G numbered stars" (cat. I/79)
    GD   = Giclas et al., 1980, Lowell Obs. Bull. 8, 157
    K    = Noguchi et al. (1980AnTok..15...55N)
    LB   = Luyten & Miller, 1956, "A search for faint blue stars",
           Univ. Minnesota, Minneapolis
    LP   = Louten & La Bonte, 1973, "The South Galactic Pole"
    MCG  = Morphological Catalog of Galaxies, Cat. VII/62 and VII/100
    NLTT = Luyten, 1979, Cat. I/98
    PHL  = Haro & Luyten, 1962BITon...3...37H, Cat. III/74


History:
    Prepared via OCR at CDS;
    some parts were supplied to CDS by A.-M. Fringant

References:
  I.   Berger J. & Fringant A.-M. 1977A&AS...28..123B
  II.  Berger J. & Fringant A.-M. 1980A&AS...39...39B
  III. Berger J. & Fringant A.-M. 1984A&AS...58..565B
  IV.  Berger J. & Fringant A.-M. 1985A&AS...61..191B
(End)                         James Marcout, Patricia Bauer [CDS]    06-Mar-2001