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J/BaltA/10/481 HIP visual binaries kinematics. I. (Bartkevicius+, 2001)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
table1.dat table2.dat table3.dat table4.dat table5.dat table6.dat
table7.dat table8.dat table9.dat table10.dat table13a.dat table13b.dat
refs.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/BaltA/10/481
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-r--r--r-- 1 cats archive 1701 Nov 22 2002 refs.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-rw-r--r-- 1 cats archive 41113 Feb 15 2003 table1.dat [txt] [txt.gz] [fits] [fits.gz] [html]
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Beginning of ReadMe :J/BaltA/10/481 HIP visual binaries kinematics. I. (Bartkevicius+, 2001)
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Kinematics of Hipparcos visual binaries. I. Stars with orbital solutions.
Bartkevicius A., Gudas A.
<Baltic Astronomy, 10, 481 (2001)>
=2001BaltA..10..481B
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ADC_Keywords: Stars, double and multiple ; Photometry, UBV ; Proper motions ;
Parallaxes, trigonometric ; Radial velocities ; Space velocities
Keywords: stars: binaries: visual, kinematics - Galaxy: population -
orbiting observatories: Hipparcos
Abstract:
A sample consisting of 570 binary systems is compiled from several
sources of visual binary stars with well-known orbital elements.
High-precision trigonometric parallaxes (mean relative error about 5%)
and proper motions (mean relative error about 3%) are extracted from
the Hipparcos Catalogue or from the reprocessed Hipparcos data.
However, 13% of the sample stars lack radial velocity measurements.
Computed galactic velocity components and other kinematic parameters
are used to divide the sample stars into kinematic age groups. The
majority (89%) of the sample stars, with known radial velocities, are
the thin disk stars, 9.5% binaries have thick disk kinematics and only
1.4% are halo stars. 85% of thin disk binaries are young or medium age
stars and almost 15% are old thin disk stars. There is an urgent need
to increase the number of the identified halo binary stars with known
orbits and substantially improve the situation with their radial
velocity data.
Based on the data from the Hipparcos astrometry satellite (ESA)
Description:
The sample, consisting of 570 Hipparcos visual binary systems with
known orbits, is selected from several sources based on Hipparcos
measurements. Hipparcos catalogue number, the identification of the
star in other catalogues, the magnitude V, the color index B-V for the
combined light of the system, and a spectral type are taken from the
Hipparcos Celestia Catalogue (ESA 1998, see Cat. I/239). The
trigonometric parallaxes are compiled from the Hipparcos Celestia
Catalogue. For several stars the improved Hipparcos results are also
used. The mean relative error of the weighted mean parallaxes is about
3%. For the bulk of the stars proper motions are taken from the
Hipparcos and Tycho-2 catalogues. The average relative error of the
weighted means of proper motion is about 3%. Radial velocities for 497
stars are compiled from several radial velocity catalogues. The mean
value of the standard error of the sample is about 2.5 km/s. 73 (18%)
of the stars belonging to the sample lack radial velocity
determinations. The computed galactic velocity components and other
kinematical parameters are used to divide the stars into kinematic age
groups.