Pulsar distances estimated from the 21-cm absorption line

The radial velocities of the 21-cm absorption lines in the spectra of the pulsars B1937+21, J0332+5434, J0738-4042, J0835-4510, J1559-4438, J1645-0317, J1752-2806, J1825-0935, and J2157+4017 have been measured. Distance estimates have been obtained for six of these objects. The observations were conducted on the 34-m radio telescope of the Kashima Space TechnologyCenter (Japan) and the Giant Metrewave Radio Telescope (GMRT) in India. The data are in a good agreement with the results of other studies.