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J/MNRAS/370/435     Proper motions near the Baade window    (Kozlowski+, 2006)
Mapping stellar kinematics across the Galactic bar: HST measurements of proper
motions in 35 fields.
    Kozlowski S., Wozniak P.R., Mao S., Smith M.C., Sumi T., Vestrand W.T.,
    Wyrzykowski L.
   <Mon. Not. R. Astron. Soc. 370, 435 (2006)>
   =2006MNRAS.370..435K
ADC_Keywords: Stars, nearby ; Photometry ; Proper motions

Keywords: gravitational lensing - Galaxy: bulge - Galaxy: disc -
          Galaxy: kinematics and dynamics

Abstract:
    We present a proper motion mini-survey of 35 fields in the vicinity of
    Baade window, (l, b) = (1°, 4°), sampling roughly a 5x2.5deg2
    region of the Galactic bar. Our second epoch observations collected
    with the Advanced Camera for Surveys/High Resolution Channel
    instrument onboard the Hubble Space Telescope were combined with the
    archival Wide Field Planetary Camera 2/PC images. The resulting time
    baselines are in the range of 4 to 8yr. Precise proper motions of
    15863 stars were determined in the reference frame defined by the mean
    motion of stars with magnitudes between IF814W=16.5 and 21.5 along
    the line of sight.

Description:
    The first epoch images (selected from the HST archive) were all taken
    with the WFPC2/PC camera, and cover the time interval 1996-2000. The
    second epoch data come from our own SNAP programme (cycle 13; proposal
    ID 10198) and were collected in 2004 and 2005 using the High
    Resolution Channel (HRC) of the Advanced Camera for Surveys (ACS).

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        80       35   Log of the HST observations
table2.dat        68       37   Results of our proper motion mini-survey
photom.dat       140    25060   Fields photometry (Version of 08-Jun-2006)


See also:
    J/ApJ/562/337 : High proper-motion stars from MACHO (Alcock+, 2001)
           II/213 : OGLE Galactic Bulge periodic variables (Udalski+ 1996)
       J/AcA/50/1 : OGLE microlensing events in Galactic Bulge (Udalski+, 2000)
 J/MNRAS/348/1439 : OGLE II Galactic center proper motions (Sumi+, 2004)
 J/MNRAS/349/1059 : OGLE variables in Galactic bar (Wray+, 2004)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label     Explanations

   1- 15  A15   ---     Field     Field designation
  17- 18  I2    h       RAh       Right ascension (J2000)
  20- 21  I2    min     RAm       Right ascension (J2000)
  23- 28  F6.3  s       RAs       Right ascension (J2000)
      30  A1    ---     DE-       Declination sign (J2000)
  31- 32  I2    deg     DEd       Declination (J2000)
  34- 35  I2    arcmin  DEm       Declination (J2000)
  37- 41  F5.2  arcsec  DEs       Declination (J2000)
  43- 49  F7.2  yr      Epoch1    Epoch of first F814W exposure (YYYY.yy)
      51  I1    ---     o_ExpI1   Number of exposures
      52  A1    ---     ---       [x]
  53- 55  I3    s       ExpI1     Exposure time of first F814W exposure
      57  I1    ---     o_ExpV    ? Number of F555W exposures
      58  A1    ---     ---       [x]
  59- 61  I3    s       ExpV      ? Exposure time of F555W exposures
  63- 66  I4    ---     PropID1   First epoch proposal ID
  68- 74  F7.2  yr      Epoch2    Epoch of second F814W exposure (YYYY.yy)
      76  I1    s       o_ExpI2   Number of exposures
      77  A1    ---     ---       [x]
  78- 80  I3    s       ExpI2     Exposure time of second F814W exposure


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

   Bytes Format Units    Label     Explanations

   1- 15  A15   ---      Field     Field designation
      17  A1    ---      n_Field   [*] Note on Field (1)
  19- 22  F4.2  deg      GLON      Galactic longitude
  24- 27  F4.2  deg      GLAT      Galactic latitude
  29- 32  F4.2  mas/yr   pmGLON    Longitudinal Proper motion
  34- 37  F4.2  mas/yr   e_pmGLON  Uncertainty on longitudinal proper motion
  39- 42  F4.2  mas/yr   pmGLAT    Latitudinal proper motion
  44- 47  F4.2  mas/yr   e_pmGLAT  Uncertainty on latitudinal proper motion
  49- 53  F5.2  ---      CIb       Dimensionless correlation coefficient Cib
  55- 58  F4.2  ---      e_CIb     Uncertainty on CIb
  60- 64  F5.3  yr       DT        Time baseline
  66- 68  I3    ---      Nstars    Number of stars used to estimate the
                                    kinematics

Note (1): KR-BW and KR-SgrI are the Baade window and the Sagittarius-I field,
          respectively, from Kuijken & Rich (2002AJ....124.2054K)


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

   Bytes Format Units   Label     Explanations

   1- 15  A15   ---     Field     Field designation
  17- 24  F8.4  deg     GLON      Galactic longitude
  25- 32  F8.4  deg     GLAT      Galactic latitude
  34- 42  F9.5  deg     RAdeg     Right Ascension J2000.0 in decimal degrees
  44- 52  F9.5  deg     DEdeg     Declination J2000.0 in decimal degrees
  54- 60  F7.3  mas/yr  pmGLON    Longitudinal proper motion
  62- 68  F7.3  mas/yr  pmGLAT    Latitudinal proper motion
  71- 76  F6.3  mas/yr  e_pm      Uncertainty of a proper motion
                                  (same for pmGLON and pmGLAT)
  78- 85  F8.3  pix     Xpos1     X position on the chip for first epoch (WFPC2)
  87- 94  F8.3  pix     Ypos1     Y position on the chip for first epoch (WFPC2)
  96-103  F8.3  pix     Xpos2     X position on the chip for second epoch
                                    (ACS / WFPC2)
 105-112  F8.3  pix     Ypos2     Y position on the chip for second epoch
                                    (ACS / WFPC2)
 114-119  F6.3  mag     Imag      I magnitude (F814W) in VEGA magnitude system
 122-126  F5.3  mag     e_Imag    Uncertainity of Imag
 127-133  F7.3  mag     Vmag      ?=-99.99 V magnitude (F555W) in VEGA system
 134-140  F7.3  mag     e_Vmag    ?=-99.99 uncertainty of Vmag


History:
  * 10-Nov-2006: From electronic version of the journal
  * 11-Jan-2007: Declination signs corrected in table1.dat (- instead of +).
                 Table photom.dat reformatted (floating-point numbers
                 replaced by fixed-point values)
(End)                 Patricia Vannier, Francois Ochsenbein [CDS]    10-Nov-2006