J/PAZh/34/446 Dynamical study of wide pairs of stars from WDS (Kiyaeva+, 2008)
Dynamical study of wide pairs of stars based on data from the WDS catalog.
Kiyaeva O.V., Kiselev A.A., Izmailov I.S.
<Pis'ma Astron. Zh. 34, 446 (2008)>
=2008PAZh...34..446K 2008PAZh...34..446K
=2008AstL...34..405K 2008AstL...34..405K
ADC_Keywords: Stars, double and multiple ; Parallaxes, trigonometric ;
Stars, masses
Abstract:
Using the method of apparent motion parameters, we have studied the
relative motion of the components in 561 pairs of wide (rho>2")
and relatively nearby (Hipparcos parallaxes >0.01") visual double
stars based on data from the WDS catalog. The minimum masses of the
double stars have been calculated at given parallaxes. We have
identified 358 optical pairs. For 11 stellar pairs, we have found the
minimum mass to exceed the estimate corresponding to their spectral
types and luminosities. This excess is 5-7M☉ for two stars,
ADS7446 and 9701.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 113 396 Optical binaries
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See also:
I/237 : The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/392] Running number
5- 14 A10 --- WDS WDS number of pair
16- 28 A13 --- Name Pair identificator
32 A1 --- n_Name [r] Feature: pair is due to the star
catalog with rectilineal motion
34- 36 I3 --- Nobs Number of observations
38- 41 I4 yr Obs1 Oldest observation
43- 46 I4 yr Obs2 Most recent observation
48- 53 F6.1 yr Epoch Middle epoch of observations
57- 63 F7.3 arcsec rho Distance between components
65- 70 F6.3 arcsec e_rho Standard error of rho
73- 78 F6.4 arcsec/yr mu Relative motion
81- 86 F6.4 arcsec/yr e_mu Standard error of mu
89- 94 F6.2 mas plx Parallax
97-100 F4.2 mas e_plx Standard error of plx
105-113 F9.1 solMass Mass Dynamical mass
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(End) Veta Avedisova[INASAN] 05-Oct-2008