CDROM/AJ/V106/P0591     Halo Early-Type Stars (Rodgers+ 1993)
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Early-Type Stars in Orthogonal Halo Fields. I.  An Objective-Prism Survey
      A. W. Rodgers, W. H. Roberts, & I. Walker
      <1993, AJ, 106, 591>
      =1993AJ....106..591R
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Abstract:
  The results are reported of an objective-prism survey of stars, mostly
  earlier than spectral type F5, for two fields at (l;b) = (90 deg and
  270 deg; -45 deg).  The fields, each of approximately 70 square
  degrees, are examined on plates taken with the Schmidt Telescope of the
  Anglo-Australian Observatory.  The brightness range of the stars
  classified is 10 < V < 15.  The prism combination used provides a
  dispersion of 600 A/mm at Hgamma.  The spectral classification
  presented is defined by the equality of equivalent widths of Ca II K
  and Hdelta at type "F0" and the absence of Ca II K in stars with
  significant Balmer lines at type "A0".  Positions listed in the catalog
  were measured on the Stromlo PDS microdensitometer.  Most stars were
  subsequently identified with objects in the ST ScI-NASA-ESO Hubble
  Space Telescope Guide Star Catalog in which positions have an accuracy
  of near +/- 1.0 arcsec.


File Summary:
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File Name    Lrecl    Records    Explanations
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table2.dat      82        435    The Catalog of Early-Type Stars
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Comments for file: table2.dat
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Table 2 contains the results of the spectral classification discussed
in detail in section 3 of the printed paper.  Twelve objective prism
plates with a prism giving a dispersion of 600 A/mm at Hgamma were
obtained on request by the staff of the Schmidt Telescope Unit of the
Anglo-Australian Observatory.  The plates were examined visually with
a low power microscope and the spectra classified by A.W. Rodgers.
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Byte-by-byte Description of file: table2.dat
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   Bytes Format  Units   Label     Explanations
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   1- 9   A9     ---     Object    Object identifier
  10-11   2X     ---     ---       Blank
  12-13   F2.0   h       RAh       Right Ascension, J2000.0
  14      1X     ---     ---       ':'
  15-16   F2.0   min     RAm       R.A.
  17      1X     ---     ---       ':'
  18-22   F5.2   s       RAs       R.A.
  23      1X     ---     ---       Blank
  24      A1     ---     DE-       Sign of declination, J2000.0
  25-26   F2.0   deg     DEd       Declination, J2000.0
  27      1X     ---     ---       ':'
  28-29   F2.0   arcmin  DEm       Dec.
  30      1X     ---     ---       ':'
  31-34   F4.1   arcsec  DEs       Dec.
  35-36   2X     ---     ---       Blank
  37-43   A7     ---     Sp        Spectral type
  44-48   F5.1   ---     V         V magnitude
  49      1X     ---     ---       Blank
  50-82   A33    ---     Comments  Comments and other designations
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(End)                                             Lee Brotzman [ADS] 09-Mar-1995