CDROM/AJ/V114/P1471     Fornax Globular 3 (Smith+ 1997)
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Fornax Globular Cluster 3: New Color-Magnitude Diagrams For Cluster and
Surrounding Field
      Edgar O. Smith, R. Michael Rich, and James D. Neill
      <1997, AJ, 114, 1458>
      =1997AJ....114.1458M
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Abstract:
  We present new B-V color-magnitude diagrams for Fornax globular
  cluster 3 and the surrounding field where our data reach one magnitude
  below the horizontal branch which is at V_HB = 21.28. After
  subtracting the field stars from the cluster CMD, we found no evidence
  for an intrinsic width of the red giant branch because the scatter is
  only slightly wider than the photometric errors. We determine that
  there is an intrinsic width to the horizontal branch because the
  scatter is larger than the photometric errors.  After comparing our
  data with earlier photometry, we find 7 possible variable stars, both
  within and outside the instability strip, out of a total of 74
  horizontal branch stars. We calculate the horizontal branch type of
  cluster 3 to be of intermediate color, -0.110 +/- 0.104, which when
  compared to Fornax cluster 1, having similar metallicity, suggests a
  second-parameter pair. Five carbon star candidates identified by
  Jorgensen & Jimenez (1997, A&A, 317, 54) are marked in the
  field-subtracted color [(dash)]magnitude diagram. (c) 1997 American
  Astronomical Society.

File Summary:
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File Name    Lrecl    Records   Explanations
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table3.dat      42       2698   Fornax cluster 3 photometry
table3.tex      56       2724   AASTeX version of table3.dat
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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         Identification number
   5-11   F7.1   pix        X          X pixel coordinate
  12-18   F7.1   pix        Y          Y pixel coordinate
  19-24   F6.2   mag        V          V magnitude
  25-30   F6.2   mag        e_V        V error
  31-36   F6.2   mag        B-V        B-V color
  37-42   F6.2   mag        e_B-V      B-V error
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(End)                                             Lee Brotzman [ADS] 04-Nov-1997