J/MNRAS/340/1346 Bulge SC1 proper motions (Sumi+, 2003)
Measurements of streaming motions of the Galactic bar with red clump giants.
Sumi T., Eyer L., Wozniak P.R.
<Mon. Not. R. Astron. Soc. 340, 1346 (2003)>
=2003MNRAS.340.1346S 2003MNRAS.340.1346S
ADC_Keywords: Proper motions ; Photometry, CCD
Keywords: Galaxy: bulge - Galaxy: centre - Galaxy: kinematics and dynamics -
Galaxy: structure
Abstract:
We report a measurement of the streaming motion of the stars in the
Galactic bar with the red clump giants (RCGs) using the data of the
Optical Gravitational Lensing Experiment II (OGLE-II). We measure the
proper motion of 46961 stars and divide RCGs into bright and faint
subsamples that on average will be closer to the near and far sides of
the bar, respectively. We find that the far-side RCGs (4979 stars)
have a proper motion of Δ<µ≳1.5±0.11mas/yr toward the
negative longitudes relative to the near-side RCGs (3610 stars).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
bulsc1.dat 104 46961 Proper motion of all 46961 stars
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See also:
II/213 : OGLE Galactic Bulge periodic variables (Udalski+ 1996)
J/AcA/52/217 : OGLE VI photometry of Galactic Bulge (Udalski+, 2002)
J/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)
ftp://sirius.astrouw.edu.pl/ogle : OGLE DataBase
Byte-by-byte Description of file: bulsc1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Seq Sequential number, as in Udalski, 2002,
Cat. J/other/AcA/52.217 (1)
8- 10 I3 --- Ndata Number of data point
12- 17 F6.2 mas/yr pmRA Proper motion, mualpha*cos(delta)
19- 23 F5.2 mas/yr e_pmRA rms uncertainty on pmRA
26- 31 F6.2 mas/yr pmDE Proper motion, mu_delta
33- 37 F5.2 mas/yr e_pmDE rms uncertainty on pmDE
39- 44 F6.2 --- a The differential refraction coefficient
47- 51 F5.2 mas Sdev Standard deviation of data points in
the fitting
54- 63 F10.7 h RAhour Right ascension in decimal hours (J2000)
65- 75 F11.7 deg DEdeg Declination, in decimal degrees (J2000)
78- 83 F6.3 mag Imag I magnitude (Udalski, 2002,
Cat. J/other/AcA/52.217)
85- 89 F5.3 mag V-I V-I colour index (Udalski, 2002,
Cat. J/other/AcA/52.217)
92- 97 F6.3 mag I0 Extinction corrected I magnitude
99-104 F6.3 mag (V-I)0 Extinction corrected V-I color index
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Note (1): OGLE BUL-SC01 NNNNNNN in Simbad
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History:
Copied at ftp://ftp.astro.princeton.edu/sumi/propermotion/
(End) James Marcout, Patricia Bauer [CDS] 18-Nov-2003