II/117      Catalog of UBVRI Photometry of Globular Clusters   (Peterson 1986)
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A Catalog of Concentric Aperture UBVRI Photoelectric Photometry
of Globular Clusters
    Peterson C. J.
   <Publ. Astron. Soc. Pac., 98, 192 (1986)>
   =1986PASP...98..192P
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ADC_Keywords: Photometry, UBVRI ; Clusters, globular


Description:
    Photometric data directly obtained in UBVRI or converted to UBVRI
    magnitudes are tabulated. The data comprise approximately 4600 records
    from 56 individuals and contains data unpublished at the time of the
    compilation as well as published data.

Introduction:
    This catalog of globular cluster magnitudes includes both measurements
    originally obtained on that system and those obtained in other systems
    which have been converted to the UBVRI system. The equations used for
    this conversion are given in the source reference. No attempt has been
    made to put all observations on the same system otherwise. Although
    both northern and southern UBV data match the original Johnson system,
    the R and I photometry may differ due to differences in photocells and
    filters used in defining various sets of standard stars.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
data.dat          79     4256   Data (tables 1-7)
refs.dat         132       50   References (table 8)


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

   Bytes Format  Units   Label    Explanations

   1- 13  A13    ---     name     Cluster Name
  15- 18  A4     ---     Ref     *Reference Code
  20- 25  F6.3   arcmin  ap       ? Aperture Diameter
  27- 31  F5.2   mag     Umag    *? U Magnitude
  33- 37  F5.2   mag     U-B      ? Johnson Ultraviolet Color Index
  39- 43  F5.2   mag     Bmag     ? B Magnitude, computed from V+(B-V)
  45- 49  F5.2   mag     B-V      ? Johnson Blue Color Index
  51- 55  F5.2   mag     Vmag     ? V Magnitude
  57- 61  F5.2   mag     V-R      ? Visual-Red Color Index
  63- 67  F5.2   mag     Rmag     ? R Magnitude, computed from V-(V-R)
  69- 73  F5.2   mag     V-I     *? Visual-I Band Color Index
  75- 79  F5.2   mag     Imag     ? I Magnitude, computed from V-(V-I)

Note on Ref:
   Literature reference for data entry, following the code of refs.dat
Note on Umag:
   Computed from V+(B-V)+(U-B) if all data exist for given aperture;
   otherwise the column is left blank
Note on V-I:
   Generally computed from (V-R)+(R-I) in the original sources of data


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

   Bytes Format  Units   Label    Explanations

   1-  4  A4     ---     Ref      Reference Code
   6-105  A100   ---     Text     Text of reference
 117-119  I3     ---     N        Number of Clusters
 121-132  A12    ---     Type     Type of Data


References:
  Bessell M.S. =1983PASP...95..480B
  de Vaucouleurs G., de Vaucouleurs A., and Corwin H.G.Jr. 1975, Second
     Reference Catalogue of Bright Galaxies (Austin: U. Texas Press).
     =Catalogue VII/112
  Danziger I.J. =1973ApJ...181..641D
  Faber S.M. 1973, Ap. J. 179, 731. (1973ApJ...179..731F)
  Gascoigne S.C.B., and Burr E.F. 1956, MNRAS. 116, 570. (1956MNRAS.116..570G)
  Gordon K.C., and Kron G.E. =1983PASP...95..461G
  Hamuy M.    =1985ApJS...57...91E
  Graham J.A. =1982PASP...94..244G
  Hanes D.A., and Brodie J.     =1985MNRAS.214..491H
  Johnson H.L., and Morgan W.W. =1953ApJ...117..313J
  Kron G.E. 1966, Publ. A. S. P. 78, 143. (1975PASP...87..143K)
  Kron G.E., and Gordon K.C. 1985, in preparation. (1986PASP...98..544K)
  Kron G.E., and Guetter H.H. 1976, A. J. 81, 817. (1976AJ.....81..817K)
  Kron G.E., and Mayall N.U. 1960, A. J. 65, 58.   (1960AJ.....65..581K)
  McClure R.C., and van den Bergh S. =1968AJ.....73..313M
  Menzies J.W. 1967, unpublished Ph.D. thesis, Australian National University.
  Morgan W.W., Harris E.L., and Johnson H.L. =1953ApJ...118...92M
  Neff J.S. =1970MNRAS.149...45N
  Neff J.S., and Travis, L. D. 1967, A. J. 72, 48. (1967AJ.....72...48N)
  Peterson C.J. 1986, this study (1986PASP...98..192P)
  Reed B.C. =1985PASP...97..120R
  Rettig T.W. 1976, unpublished Ph.D. thesis, Indiana University.
  Searle L., Wilkinson A., and Bagnuolo W. G. =1980ApJ...239..803S
  Stebbins J. =1950MNRAS.110..416S
  Stebbins J., and Whitford A.E. 1936, Ap. J. 84, 132. (1936ApJ....84..132S)
  Straizys V. 1977, Multicolor Stellar Photometry (Vilnius: Mokslas).
  Thuan T.X., and Gunn J.E. =1976PASP...88..543T
  van den Bergh S. =1967AJ.....72...70V; 1967, 75, 131.
  van den Bergh S. =1981A&AS...46...79V
  Wood D.B.        =1969AJ.....74..177W
  Zdanavicius, K.V. 1983, Soviet A. J. 27, 26. (1983AZh....60...44Z)
  Zinn R.          =1980ApJS...42...19Z
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(End)                                  Julie Anne Watko [SSDOO/ADC]  21-Feb-1996