Masers are incredibly bright, compact emission regions in the Galaxy that permit measurements of full six-dimensional phase-space position. Reid (Harvard) has a sample of 18 that he used to measure the mass of the Milky Way. Rix, Bovy, and I spent an inordinate amount of time criticizing the Reid method, although we are not sure we can do better. We also involved Johnston and Weinberg (UMASS) in our discussions.
No comments:
Post a Comment