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J/ApJ/648/1026      HST photometry of M5 blue stragglers         (Warren+, 2006)
The blue straggler population of the globular cluster M5: comparison with M3.
    Warren S.R., Sandquist E.L., Bolte M.
   <Astrophys. J., 648, 1026-1036 (2006)>
   =2006ApJ...648.1026W
ADC_Keywords: Clusters, globular ; Photometry, HST

Keywords: blue stragglers - globular clusters: general -
          globular clusters: individual (M5, M3)

Abstract:
    We have surveyed the blue straggler star population of the Galactic
    globular cluster M5 using high-resolution images of the core along
    with wide-field ground-based images reaching to more than 19 core
    radii. To gauge M5's relative efficiency of producing stragglers, we
    compared our sample to five studies of other globular clusters. Using
    a bright sample selected in the same way as that of Ferraro and
    coworkers (Ferraro et al., 1993AJ....106.2324F, 1997, Cat.
    J/A+A/320/757, Cat. J/A+A/324/915) we found a bimodal radial
    distribution similar to those found in three other luminous clusters.

Description:
    The photometric data we used in this study were derived from images
    taken using several ground-based telescopes and HST. Wide-field images
    in B, V, and I were taken at the Cerro Tololo Inter-American
    Observatory (CTIO) 4m telescope. We used additional higher resolution
    images of the cluster core from the Canada-France-Hawaii 3.5m
    Telescope (CFHT) in B and I.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        95      175   Candidate Blue Straggler Stars (BSSs)


See also:
    J/A+A/320/757 : M3 stars CCD photometry (Ferraro+ 1997)
    J/A+A/324/915 : Blue stragglers in M3 (Ferraro+ 1997)


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label    Explanations

   1-  6  A6    ---     Reg      Region sampled: Core or Ground (1)
   8- 11  A4    ---     BBS      Blue straggler star sample: bright or faint (2)
  13- 14  I2    ---     Num      Running identification number (G1)
  16- 23  F8.3  arcsec  oRA      Cluster center offset in Right Ascension (3)
  25- 32  F8.3  arcsec  oDE      Cluster center offset in Declination (3)
  34- 37  A4    ---     Tel      Telescope (5)
  40- 46  F7.4  mag     F225W    ? Magnitude in HST HST-F225W UV filter
  48- 54  F7.4  mag     F336W    ? Magnitude in HST HST-F336W UV filter
  56- 62  F7.4  mag     Bmag     ? Magnitude in B filter
  64- 70  F7.4  mag     F555W    ? Magnitude in HST HST-F555W filter
  72- 78  F7.4  mag     Vmag     ? Magnitude in V filter
  80- 86  F7.4  mag     Imag     ? Magnitude in I filter
  89- 95  F7.4  mag     B2mag    ? 2nd magnitude in B filter (CTIO observations)

Note (1): Ground = outer region (ground based sample)

Note (2): Blue straggler star sample is coded as:
     BBSS = Bright Blue straggler star
     FBSS = Faint Blue straggler star
Note (3): Cluster center given by Harris (1996, Cat. VII/195):
          15:18:33.8+02:04:58 (J2000).
Note (5): Telescope as follows:
      HST = Hubble Space Telescope
     CFHT = Canada-France-Hawaii 3.5m Telescope
     CTIO = Cerro Tololo Interamerican Observatory 4m Telescope


Global Notes:

Note (G1): Nomenclature Note:
     In Simbad, objects are identified as
     Cl* NGC 5904 BBSS CNN = Core   BBSS NN
     Cl* NGC 5904 FBSS CNN = Core   FBSS NN
     Cl* NGC 5904 BBSS GNN = Ground BBSS NN
     Cl* NGC 5904 FBSS GNN = Ground FBSS NN


History:
  * 17-Jul-2008: From electronic version of the journal
  * 15-Oct-2008: table reformatted (original is table2.ori)
(End)                  Greg Schwarz [AAS], Patricia Vannier [CDS]    17-Jul-2008