NANOGrav High-Precision Millisecond Pulsar Timing and Gravitational Wave Background Limit

Details NANOGrav High-Precision Millisecond Pulsar Timing and Gravitational Wave Background Limit NANOGrav High-Precision Millisecond Pulsar Timing and Gravitational Wave Background Limit

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21914616n&link_type=abstract

American Astronomical Society, AAS Meeting #219, #146.16

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The NANOGrav consortium uses the Arecibo Observatory and the Green Bank Telescope to make high-precision timing observations of millisecond pulsars. This program is motivated both by the search for a gravitational wave background as well as more traditional pulsar timing applications such as measuring binary orbits to test theories of gravitation and measure neutron star masses. The observing program grows as new millisecond pulsars are discovered; presently 38 sources are under observation (19 each at Arecibo and Green Bank, with an overlap of 2 sources). All sources are observed at monthly intervals at two radio frequencies. We will discuss the observing program and data analysis. We present results from analysis of 5 years of data on 17 pulsars, including our measured upper limit to the gravitational wave background.

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