Abstract
A spectroscopic support survey of 103 objects observed by the Microvariability and Oscillations of STars (MOST) satellite is presented; 96 are variable stars with 83 of them being new MOST variable-star detections or stars with variability types verified and/or modified on the basis of the MOST data. The analysis of 241 medium-resolution spectra using the broadening-function formalism yielded radial velocities, projected rotational velocities (for 31 targets for which it was possible) and spectral-type estimates. Seven new spectroscopic binaries were discovered; orbital solutions are given for two of them (HD 73709 and GSC 0814−0323). The visual binary HD 46180 was found to be composed of two close binary stars (eclipsing and non-eclipsing one), very probably forming a physical quadruple system.
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