Can HST Measure the Mass of the Isolated Neutron Star RX J185635-3754 ?
arXiv:astro-ph/0107443
Abstract
In June 2003 the isolated neutron star RX J185635-3754 will pass within 0.3'' of a 26.5 mag star, changing its position by about 0.6 mas. The displacement, caused by gravitational lensing, will be proportional to the neutron star mass. The total event duration will be approximately 1 year.
2 pages, no figures, plain tex