Pulsar Timing Arrays: No longer a Blunt Instrument for Gravitational Wave Detection

Details Pulsar Timing Arrays: No longer a Blunt Instrument for Gravitational Wave Detection Pulsar Timing Arrays: No longer a Blunt Instrument for Gravitational Wave Detection

2011-12-09

arxiv.org/abs/1112.2158v2

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

8 pages, 1 figure. Submitted to the proceedings of the 9th Edoardo Amaldi Conference on Gravitational Waves, and the 2011 Nume

Scientific paper

Pulsar timing now has a rich history in placing limits on the stochastic background of gravitational waves, and we plan soon to reach the sensitivity where we can detect, not just place limits on, the stochastic background. However, the capability of pulsar timing goes beyond the detection of a background. Herein I review efforts that include single source detection, localization, waveform recovery, a clever use of a "time-machine" effect, alternate theories of gravity, and finally studies of the noise in our "detector" that will allow us to tune and optimize the experiment. Pulsar timing arrays are no longer "blunt" instruments for gravitational-wave detection limited to only detecting an amplitude of the background. Rather they are shrewd and tunable detectors, capable of a rich and dynamic variety of astrophysical measurements.

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