HST proper motion confirms the optical detection of PSR B1929+10
  We have measured the proper motion of the candidate optical counterpart of the old, nearby pulsar PSR B1929+10, using a set of HST/STIS images collected in 2001, 7.2 years after the epoch of the original FOC detection (Pavlov et al. 1996). The yearly displacement, mu=107.3+/-1 mas/yr along a position angle of 64.6+/-0.6 deg, is fully consistent with the most recent VLBA radio measurement. This result provides a robust confirmation of the identification of PSR B1929+10 in the optical band. 
A. De Luca (1,2), R.P. Mignani (3), P.A. Caraveo (1), W. Becker (4)   ((1) IASF/CNR sez. Milano, Milano, Italy; (2) Universi...