J/MNRAS/348/1439 OGLE II Galactic center proper motions (Sumi+, 2004)
The Optical Gravitational Lensing Experiment:
catalogue of stellar proper motions in the OGLE-II Galactic bulge fields.
Sumi T., Wu X., Udalski A., Szymanski M., Kubiak M., Pietrzynski G.,
Soszynski I., Wozniak P., Zebrun K., Szewczyk O., Wyrzykowski L.
<Mon. Not. R. Astron. Soc., 348, 1439-1450 (2004)>
=2004MNRAS.348.1439S 2004MNRAS.348.1439S
ADC_Keywords: Surveys ; Proper motions
Keywords: astrometry - Galaxy: bulge - Galaxy: centre -
Galaxy: kinematics and dynamics - Galaxy: structure
Abstract:
We present a proper-motion catalogue of 5080236 stars in 49 Optical
Gravitational Lensing Experiment II (OGLE-II) Galactic bulge (GB)
fields, covering a range of -11°<l<11° and -6°<b<3°,
the total area close to 11deg2. The proper-motion measurements are
based on 138-555 I-band images taken during four observing seasons:
1997-2000. The catalogue stars are in the magnitude range 11<I<18mag.
In particular, the catalogue includes red clump giants and red giants
in the GB, and main-sequence stars in the Galactic disc. The proper
motions up to pm=500mas/yr were measured with a mean accuracy of
0.8-3.5mas/yr, depending on the brightness of a star. This catalogue
may be useful for studying the kinematics of stars in the GB and the
Galactic disc.
Description:
We use the data collected during the second phase of the OGLE
experiment, between 1997 and 2000. All observations were made with the
1.3-m Warsaw telescope located at the Las Campanas Observatory, Chile,
which is operated by the Carnegie Institution of Washington.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 89 49 Centre positions of OGLE-II 49 fields
table3.dat 61 49 Proper motions of the GC for all 49 OGLE-II fields
pm/* . 49 Fields proper motions
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See also:
J/AcA/52/217 : OGLE II photometry of Galactic Bulge (Udalski+, 2002)
ftp://sirius.astrouw.edu.pl/ogle/ogle2 : OLGE II HomePage
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [BUL_SC]
7- 8 I2 --- BUL_SC BUL_SC field number
10- 11 I2 h RAh Right ascension (J2000.0, Epoch=J2000)
13- 14 I2 min RAm Right ascension (J2000.0)
16- 19 F4.1 s RAs Right ascension (J2000.0)
21 A1 --- DE- Declination sign (J2000.0, Epoch=J2000)
22- 23 I2 deg DEd Declination (J2000.0, Epoch=J2000)
25- 26 I2 arcmin DEm Declination (J2000.0)
28- 29 I2 arcsec DEs Declination (J2000.0)
31- 36 F6.2 deg GLON [-12/12] Galactic longitude
38- 42 F5.2 deg GLAT Galactic latitude
44- 46 I3 --- Nf Number of frames in the field
48- 53 I6 --- Nstar Number of stars in the field
55- 58 F4.2 mas/yr <e_pm>1 Mean of uncertainty in proper motion
for Imag=11.5
60- 63 F4.2 mas/yr <e_pm>2 Mean of uncertainty in proper motion
for Imag=12.5
65- 68 F4.2 mas/yr <e_pm>3 Mean of uncertainty in proper motion
for Imag=13.5
70- 73 F4.2 mas/yr <e_pm>4 Mean of uncertainty in proper motion
for Imag=14.5
75- 78 F4.2 mas/yr <e_pm>5 Mean of uncertainty in proper motion
for Imag=15.5
80- 83 F4.2 mas/yr <e_pm>6 Mean of uncertainty in proper motion
for Imag=16.5
85- 89 F5.2 mas/yr <e_pm>7 Mean of uncertainty in proper motion
for Imag=17.5
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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- 6 A6 --- --- [BUL_SC]
7- 8 I2 --- BUL_SC BUL_SC field number
11- 15 I5 --- Nstar ? Number of stars used in measurements (1)
17- 21 F5.2 mas/yr pmRA ? Proper motion in right ascension (1)
23- 26 F4.2 mas/yr e_pmRA ? rms uncertainty on pmRA (1)
28- 32 F5.2 mas/yr pmDE ? Proper motion in declination (1)
34- 37 F4.2 mas/yr e_pmDE ? rms uncertainty on pmDE (1)
39- 43 F5.2 mas/yr pmGLON ? Proper motion in Galactic longitude (1)
45- 48 F4.2 mas/yr e_pmGLON ? rms uncertainty on pmGLON (1)
50- 53 F4.2 mas/yr pmGLAT ? Proper motion in Galactic latitude (1)
55- 58 F4.2 mas/yr e_pmGLAT ? rms uncertainty on pmGLAT (1)
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Note (1): No data for BUL_SC44
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Byte-by-byte Description of file: pm/*
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Bytes Format Units Label Explanations
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1- 6 I6 --- OGLE OGLE number (1)
8- 10 I3 --- Npoint Number of data points
11- 17 F7.2 mas/yr pmRA Proper motion in right ascension (mu(RA)cos(DE)
18- 23 F6.2 mas/yr e_pmRA rms uncertainty on pmRA
25- 31 F7.2 mas/yr pmDE Proper motion in declination (mu(DE))
32- 37 F6.2 mas/yr e_pmDE rms uncertainty on pmDE
39- 45 F7.2 mas/yr pmGLON Proper motion in galactic longitude (mu(GLON))
46- 51 F6.2 mas/yr e_pmGLON rms uncertainty on e_pmGLON
53- 59 F7.2 mas/yr pmGLAT Proper motion in galactic latitude (mu(GLAT))
60- 65 F6.2 mas/yr e_pmGLAT rms uncertainty on e_pmGLAT
67- 73 F7.2 mas a Differential refraction coefficient
75- 80 F6.2 mas Sdev Standard deviation of data points in the fitting
83- 88 F6.3 mag Imag I magnitude
89- 94 F6.3 mag V-I ?=9.999 V-I colour index
97-105 F9.5 deg RAdeg Right ascension in decimal degrees (J2000)
107-115 F9.5 deg DEdeg Declination in decimal degrees (J2000)
117-123 F7.2 pix Xpos x pixel coordinate in template image
125-131 F7.2 pix Ypos y pixel coordinate in template image
133 I1 --- Xchunk x position of the chunk (512x128 pixel)
135-136 I2 --- Ychunk y position of the chunk (512x128 pixel)
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Note (1): Names are OGLE BUL-SCNN NNNNNNN in Simbad
From Udalski et al., 2002, Cat. J/AcA/52/217.
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History:
Copied at ftp://sirius.astrouw.edu.pl/ogle/ogle2/proper_motion/
(End) Patricia Vannier [CDS] 19-Jul-2004