Examining motion of the LSR using anticenter carbon stars

Abstract

We summarize results of a measurement of the motion of the LSR with respect to anticenter carbon stars. New radial velocities were combined with existing K‐band photometry to examine the velocity mean and dispersion as a function of distance. The mean velocity of the carbon stars relative to the LSR is 6 km s−1 with a dispersion of 23 km s−1, and no trends with distance are evident. We conclude that the carbon star data are not consistent with the model proposed by Blitz and Spergel (1991), and tend to agree with the model of Kuijken (1991) more closely.