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.
@article{arxiv.1001.4704,
title = {Precision timing of PSR J1012+5307 and strong-field GR tests},
author = {Kosmas Lazaridis and Norbert Wex and Axel Jessner and Michael Kramer and J. Anton Zensus and Ben W. Stappers and Gemma H. Janssen and Mark B. Purver and Andrew G. Lyne and Christine A. Jordan and Gregory Desvignes and Ismael Cognard and Gilles Theureau},
journal= {arXiv preprint arXiv:1001.4704},
year = {2016}
}
Comments
3 pages, Proceedings of the 12th Marcel Grossmann Meeting on General Relativity (MG 12)