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J/AJ/108/1256              The OB association LH 58 (Garmany+, 1994)
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The OB association LH 58 in the Large Magellanic Cloud
      Garmany C.D., Massey P., Parker J.W.
     <Astron. J. 108, 1256 (1994)>
     =1994AJ....108.1256G      (SIMBAD/NED Reference)
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ADC_Keywords: Associations, stellar ; Photometry, CCD

Abstract:
   We present CCD photometry and spectroscopy for stars in Lucke-Hodge 58,
   an isolated OB association in the Large Magellanic Cloud (LMC)
   northwest of 30 Doradus. The photometric catalog contains 839 stars
   with UBV magnitudes complete to V~19. We have obtained spectra
   and classified 35 stars; combined with previous published spectral
   types, we find 22 O-type stars. The earliest type is O3-4 V, and there
   are three WR stars in the association. The slope of the initial mass
   function, Gamma=-1.7+/-0.3, is in good agreement with other LMC
   associations. The presence of several evolved supergiants with masses
   about 15-25M_{sun}_ suggests that some star formation took place as early
   as 10 million years ago, but the majority of stars formed coevally
   within the past few million years.

Addresses:
   Garmany C.D.                 garmany@jila.colorado.edu
      Joint Institute for Laboratory Astrophysics, Box 440 University of
      Colorado, Boulder, Colorado 80309-0389
   Massey P.                    massey@noao.edu
      Kitt Peak National Observatory, National Optical Astronomy Observatories,
      P.O. Box 26732, Tucson, Arizona 85726-6732
   Parker J.W.                  joel@hrssun.gsfc.nasa.gov
      Laboratory for Astrophysics and Space Astronomy, Code 681,
      Goddard Space Flight Center - NASA, Greenbelt, Maryland 20771

File Summary:
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 FileName    Lrecl    Records   Explanations
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ReadMe          80          .   This file
table3.dat      44        839   UBV photometry of stars in LH 58
table3.tex      92        976   LaTeX version of table3
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Byte-by-byte Description of file: table3.dat
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   Bytes Format  Units   Label    Explanations
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   1-  4  I4     ---     ID       Star number, in increasing RA order
   6- 11  F6.1   pix     Xpos     X CCD coordinate
  13- 17  F5.1   pix     Ypos     Y CCD coordinate
  19- 24  F6.2   mag     Vmag     V magnitude
  25- 26  A2     ---   u_Vmag     [: ] Uncertainty flag for V (1)
  28- 33  F6.2   mag     B-V      B-V color
  34- 35  A2     ---   u_B-V      [: ] Uncertainty flag for B-V (1)
  37- 42  F6.2   mag     U-B      U-B color
  43- 44  A2     ---   u_U-B      [: ] Uncertainty flag for U-B (1)
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Note (1): A colon, ":", indicates that the error in magnitude or color (i.e.
           the weighted average of the photometric errors for that star as
           calculated by DAOPHOT) is greater than two times the error listed
           in Table 2 in the printed paper. Two colons, "::", indicate errors
           greater than three times the typical value.
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Origin: AAS CD-ROM series, Volume 3, 1995
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(End)     Lee Brotzman [ADS] 31-Oct-1994,     Patricia Bauer [CDS]   16-Feb-1995