CDROM/AJ/V107/P1381     Globular Clusters. I. (Tello 1994)
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Sampling of Globular Clusters and the Distance to the Galactic Center. I. 
Data Description and Analysis
      Tello, C. 
      <1994, AJ, 107, 1381>
      =1994AJ....107.1381T
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Abstract:
  A recent compilation of globular cluster data [Harris, private
  communication (1991)] has been examined for the purpose of selecting a
  sufficiently large set of globular clusters with reliable distance
  estimates.  The absolute differences between recent and past estimates
  of the cluster parameters V(HB) and E(B-V) have been studied in
  statistically representative (but not mutually exclusive) subsets;
  resulting in a conservative estimate of the average distance modulus
  error of 0.40 mag for a total selected sample of 134 objects.  The
  effects of spatial and metallicity segregation on the statistics of
  this sample are investigated.  The adopted distance scale uses
  consistent correction terms for metallicity and reddening according to
  the precepts in Racine & Harris [AJ, 98, 1609 (1989)].  From a direct
  comparison with the spatial configuration of clusters derived in the
  past, random observational errors are shown to dominate the
  uncertainties in locating the clusters along their lines of sight.

File Summary:
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File Name    Lrecl    Records    Explanations
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table4.dat      70        135    Derived distance components for 134 selected 
                                 globular clusters
table4.tex     214        214    AASTeX version of table 4
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Byte-by-byte Description of file: table4.dat
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   Bytes Format  Units      Label    Explanations
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  1- 6   A6      ---        Name    *Object name
  7-13   F7.1    deg        GLon     Galactic longitude, l
 14-19   F6.2    deg        GLat     Galactic latitude, b
 20-26   F7.2    mag        V_HB     Estimated level of the horizontal branch
 27-33   F7.2    ---        m_H      Metallicity measure [m/H]
 34-39   F6.2    mag        E_B-V    Reddening determination, E(B-V)
 40-46   F7.1    kpc        Dsun     Radial distance from the Sun
 47-52   F6.1    kpc        Xsun     X component of dist. = Dsun cos b cos l
 53-58   F6.1    kpc        Ysun     Y component of dist. = Dsun cos b sin l
 59-64   F6.1    kpc        Zsun     Z component of dist. = Dsun sin b
 65-     1X      ---        ---      Blank
 66-67   A2      ---        S1       'S1' if S0 cluster w/revised est. in V(AB)
 68-     1X      ---        ---      Blank
 69-70   A2      ---        S2       'S2' if S0 cluster w/revised est. in E(B-V)
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Notes for file: table4.dat
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Name:
  Globular cluster Pal 10 appears in Table 4 although it does not belong to
  the selected sample S0.
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(End)                                             Lee Brotzman [ADS] 23-Apr-1994