[1101.3990] Nano-Hertz Gravitational Waves Searches with Interferometric Pulsar Timing Experiments

Authors: Massimo Tinto

Date: 20 Jan 2011

Abstract: We estimate the sensitivity to nano-Hertz gravitational waves of pulsar timing experiments in which two highly-stable millisecond pulsars are tracked simultaneously with two neighboring radio telescopes that are referenced to the same time-keeping subsystem (i.e. "the clock"). By taking the difference of the two time-of-arrival residual data streams we can exactly cancel the clock noise in the combined data set, thereby enhancing the sensitivity to gravitational waves. We estimate that, in the band ($10ˆ{-9} - 10ˆ{-8}$) Hz, this "interferometric" pulsar timing technique can potentially improve the sensitivity to gravitational radiation by almost two orders of magnitude over that of single-telescopes. Interferometric pulsar timing experiments could be performed with neighboring pairs of antennas of the forthcoming large arraying projects.

abs pdf

Jan 26, 2011

1101.3990 (/preprints)
2011-01-26, 16:14 [edit]

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