PULSARS AS A SPACE VERY STABLE TIME STANDARDS

摘要

Russian experts proposed a new fundamental time scale based on a very stable pulsar period of rotation. Long observations of pulsar’s pulse time of arrival (TOA) (timing) were demonstrated the high stability of pulsar frequency comparable with the atomic standards in more then year. Pulsars are identified with fast rotating neutron stars. They have a very high kinetic energy and moment of inertia. Now it is detected more then 1000 pulsars. Timing of several very stable pulsars was made in more then 10 years at Pushchino Radio Astronomy Observatory (PRAO). Results of precise measurements of TOA are presented. This time set of TOA is considered as a Pulsar Time scale - PT. A new Dynamic Pulsar time scale – BPT is proposed. It is based on a stable orbital pulsar motion in binary system. Impact of Pulsar Time scale is discussed with respect to metrology problems.