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J/AJ/107/1556        Late B-type stars classification     (Garrison+ 1994)
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The late B-Type Stars: refined MK classification, confrontation with Stromgren
photometry, and the effects of rotation
      Garrison R.F., Gray R.O.
      <Astron. J. 107, 1556 (1994)>
      =1994AJ....107.1556G      (SIMBAD/NED Reference)
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ADC_Keywords: Spectral types; Stars, B-type 

Description: 
  In the fourth and final of a series of papers on the late B to the
  early F type stars, the MK spectral classification system for
  the late B type stars is refined. The effect of rotation on both
  spectral classification and Stromgren photometry of these stars is 
  considered. The work of Morgan by is extended by the establishment of 
  self-consistent sequences of narrow and broadlined standards. A number of 
  Bp-star classifications are refined and compared with Stromgren photometry.

Addresses:
   Garrison R.F.                      garrison@centaur.astro.utoronto.ca
      David Dunlap Observatory, University of Toronto, Box 360, Richmond Hill,
      Ontario, Canada L4C 4Y6
   Gray R.O.                          grayro@conrad.appstate.edu
      David Dunlap Observatory, University of Toronto, Box 360, Richmond Hill,
      Ontario, Canada L4C 4Y6, and Department of Physics and Astronomy,
      Appalachian State University, Boone, North Carolina 28608

File Summary:
--------------------------------------------------------------------------------
 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
table2.dat      99        218    Spectral types of late B type stars
notes           80        157    Notes to table2
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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-  6  A6      ---        HD       HD or DM number
       7  A1      ---      m_HD       multiplicity index
   9- 19  A11     ---        Name     Other identification (1)
  22- 27  F6.3    mag        b-y      ? b-y color index on the Stromgren system
  29- 34  F6.3    mag        m1       ? m1 index
  36- 41  F6.3    mag        c1       ? c1 index
  43- 48  F6.3    mag        Beta     ? Beta index
      51  A1      ---        Note     [ *] Indicates a remark in notes file
  54- 99  A46     ---        Sp       Spectral type
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Note (1): Open cluster identification number, Bayer designation, Flamsteed
          designation, or BSC number, in that order of preference

References:
  Abt H., 1984, in the MK process and Stellar Classification, edited by
   R.F. Garrison (David Dunlap Observatory, Toronto), p. 340
  Morgan W.W. et al., 1978, Revised MK Spectral Atlas for Stars Earlier than
   the Sun (Yerkes Observatory, University of Chicago, and Kitt Peak National
   Observatory, Chicago and Tucson)
  Thompson I.B. et al., 1987, ApJS, 64, 219
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Origin: AAS CD-ROM series, Volume 2, 1994
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(End)           Lee Brotzman [ADS] 08-May-1994, Patricia Bauer [CDS] 24-Oct-1994