Lg. Romanenko et El. Chentsov, DETERMINATION OF RELATIVE RADIAL-VELOCITI ES OF THE COMPONENTS OF VISUAL BINARY STARS FROM OBSERVATIONS WITH THE 6 METER TELESCOPE, ASTRONOM ZH, 71(2), 1994, pp. 278-281
A technique of high accuracy (+/-0.2 - 0.3 km/s) relative radial veloc
ity observations for components of visual binary stars with the 6 m te
lescope (dispersion 9 angstrom/mm) is described. The results of relati
ve radial velocity determinations for 5 stars from the Pulkovo program
(ADS 7251, ADS 10759 = Psi Dra, ADS 12169, ADS 12815 = 16 Cyg, and AD
S 14636 = 61 Cyg), as well as the results of individual radial velocit
y determinations for the components of these stars and of a star with
a dark companion, Lalande 21185, are discussed.