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We report 84 radial velocities for 36 field RR Lyrae variable stars. The typical uncertainty of a single velocity is estimated at ±0.5 km s-1. Our sample consists of variables with insufficient pre-existing data for reliable center-of-mass radial velocity determinations. We have computed center-of-mass velocities from our new velocities using RR Lyr velocity templates. The center-of-mass radial velocities have a typical uncertainty of ±1.5 km s-1 for variables observed at least three times.
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Jeffery et al. (2007) studied this question.
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