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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 =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:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 113 396 Optical binaries
See also: I/237 : The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
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

(End) Veta Avedisova[INASAN] 05-Oct-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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