Access to Astronomical Catalogues

J/A+A/484/609        BVI photometry and proper motions in M67    (Yadav+, 2008)
Ground-based CCD astrometry with wide field imagers.
II. A star catalog for M67: WFI@2.2m MPG/ESO astrometry, FLAMES@VLT radial
velocities.
    Yadav R.K.S., Bedin L.R., Piotto G., Anderson J., Cassisi S., Villanova S.,
    Platais I., Pasquini L., Momany Y., Sagar R.
   <Astron. Astrophys. 484, 609 (2008)>
   =2008A&A...484..609Y
ADC_Keywords: Clusters, open ; Photometry, UBVRI ; Proper motions ;
              Radial velocities
Keywords: Galaxy: open clusters and associations: individual: M 67 -
          astrometry - catalogs

Abstract:
    The solar-age open cluster M 67 (C0847+ 120, NGC 2682) is a touchstone
    in studies of the old Galactic disk. Despite its outstanding role, the
    census of cluster membership for M 67 at fainter magnitudes and their
    properties are not well-established.

    Using proprietary and archival ESO data, we have obtained astrometric,
    photometric, and radial velocities of stars in a 34x33arcmin2 field
    centered on the old open cluster M 67.

    The two-epoch archival observations separated by 4-years and acquired
    with the Wide-Field Imager at the 2.2m MPG/ ESO telescope were reduced
    with our new astrometric techniques, as described in the first paper
    in this series (Anderson et al., 2006A&A...454.1029A). The same
    observations served to derive calibrated BVI photometry in M 67.
    Radial velocities were measured using the archival and new
    spectroscopic data obtained at the VLT.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
catalog.dat      131     2410   M67 catalog


See also:
          II/123  : UBV Photometry of Faint Stars (V>14.5) in M67 (Frolov+ 1986)
           V/52   : Photometry and Proper Motions in M67 (Frolov+ 1986)
   J/A+AS/100/243 : Proper motions in M 67 (Zhao+ 1993)
   J/AJ/106/181   : CCD photometry of open cluster M67 (Montgomery+ 1993)
   J/AJ/112/628   : BATC Color Survey of M67 (Fan+ 1996)
   J/BaltA/7/369  : M67 CCD photometry (Boyle+, 1998)
   J/A+A/382/899  : BVI photometry in M67 (Stassun+, 2002)
   J/A+A/418/509  : Chandra observation of M67 (Van Den Berg+, 2004)
   J/BaltA/13/1   : M67 CCD Vilnius photometry (Laugalys+, 2004)


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

   Bytes Format Units    Label   Explanations

   1-  4  I4    ---      Seq     Sequential number
   6- 15  F10.6 deg      RAdeg   Right ascension in decimal degrees (J2000)
  17- 26  F10.6 deg      DEdeg   Declination in decimal degrees (J2000)
  28- 35  F8.3  pix      Xpos    X position
  37- 44  F8.3  pix      Ypos    Y position
  46- 51  F6.3  mag      Bmag    ?=99.999 Johnson B magnitude
  53- 57  F5.3  mag      e_Bmag  ?=0.999 rms uncertainty on Bmag
  59- 64  F6.3  mag      Vmag    ?=99.999 Johnson V magnitude
  66- 70  F5.3  mag      e_Vmag  ?=-0.999 rms uncertainty on Vmag
  72- 77  F6.3  mag      Icmag   ?=99.999 Cousins I magnitude
  79- 83  F5.3  mag     e_Icmag  ?=0.999 rms uncertainty on Icmag
  85- 91  F7.2  mas/yr   pmRA    Proper motion along RA (pmRA.cosDE)
  93- 97  F5.2  mas/yr   e_pmRA  rms uncertainty on pmRA
  99-105  F7.2  mas/yr   pmDE    Proper motion along declination, pmDE
 107-111  F5.2  mas/yr   e_pmDE  rms uncertainty on pmDE
 113-115  I3    ---      Pmb     Proper-motion membership probability
 117-123  F7.3  km/s     HRV     ?=999.999 Heliocentric radial velocity
 125-131  F7.3  km/s     e_HRV   ?=999.999 rms uncertainty on HRV


Acknowledgements:
    Luigi Bedin, bedin(at)stsci.edu

References:
    Anderson et al., Paper I     2006A&A...454.1029A
(End)                                        Patricia Vannier [CDS]  01-Apr-2008