[1001.4704] Precision timing of PSR J1012 5307 and strong-field GR tests

Authors: Kosmas Lazaridis, Norbert Wex, Axel Jessner, Michael Kramer, J. Anton Zensus, Ben W. Stappers, Gemma H. Janssen, Mark B. Purver, Andrew G. Lyne, Christine A. Jordan, Gregory Desvignes, Ismael Cognard, Gilles Theureau

Date: 26 Jan 2010

Abstract: We report on the high precision timing analysis of the pulsar-white dwarf binary PSR J1012+5307. Using 15 years of multi-telescope data from the European Pulsar Timing Array (EPTA) network, a significant measurement of the variation of the orbital period is obtained. Using this ideal strong-field gravity laboratory we derive theory independent limits for both the dipole radiation and the variation of the gravitational constant.

abs pdf

Feb 05, 2010

1001.4704 (/preprints)
2010-02-05, 21:26 [edit]

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