Pulsar Timing and its Future Perspective

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

I will survey the present state of radio pulsar timing and prospects for future progress. In recent years, pulsar timing experiments have grown rapidly in both quantity and quality, yielding new tests of gravitation, new constraints on the structure of neutron stars, new insight into neutron star kicks and the dynamics of supernovae, and better understanding of the evolution of compact objects in the Galaxy. The tremendous success of recent pulsar surveys, especially those with the Parkes multibeam receiver, have vastly increased the number of known pulsars. Ongoing surveys at Arecibo and elsewhere promise to continue yielding new and exciting pulsars. At the same time, advances in instrumentation--including the development of wide-band receivers and spectrometers and the routine use of software coherent dedispersion data acquisition systems--are increasing the precision attainable in timing experiments. State of the art timing precision is now around 100 nanoseconds. I will discuss limitations on present timing experiments and prospects for future improvements.

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