WHITHER THE LSR - ANTICENTER CARBON STAR VELOCITIES

We report new radial velocity measurements of 179 carbon stars toward the Galactic anticenter with accuracies of 4 km s-1. We derive distanc es to the carbon stars from existing K-band photometry and derive an a verage galactocentric radius of 13 9 kpc for the stars in the sample. Using the new velocities we find that the carbon star sample is moving radially outward with respect to the local standard of rest at a velo city of 6.6 +/- 1.7 km s-1. This is in disagreement with the nonaxisym metric rotation curve model proposed by Blitz & Spergel, which predict s a motion in the opposite direction. We find no systematic difference in the peculiar motion on either side of the anticenter and see no si gnificant trend with distance. The radial velocity dispersion of the s ample is 23 km s-1 and does not appear to vary with increasing radius.