The Discovery of the Most Accelerated Binary Pulsar
Abstract
Pulsars in relativistic binary systems have emerged as fantastic natural laboratories for testing theories of gravity, the most prominent example being the double pulsar, PSR J07373039. The HTRU-South Low Latitude pulsar survey represents one of the most sensitive blind pulsar surveys taken of the southern Galactic plane to date, and its primary aim has been the discovery of new relativistic binary pulsars. Here we present our binary pulsar searching strategy and report on the survey's flagship discovery, PSR J17571854. A 21.5-ms pulsar in a relativistic binary with an orbital period of 4.4 hours and an eccentricity of 0.61, this double neutron star (DNS) system is the most accelerated pulsar binary known, and probes a relativistic parameter space not yet explored by previous pulsar binaries.
Keywords
Cite
@article{arxiv.1802.03838,
title = {The Discovery of the Most Accelerated Binary Pulsar},
author = {A. D. Cameron and D. J. Champion and M. Kramer and M. Bailes and E. D. Barr and C. G. Bassa and S. Bhandari and N. D. R. Bhat and M. Burgay and S. Burke-Spolaor and R. P. Eatough and C. M. L. Flynn and P. C. C. Freire and A. Jameson and S. Johnston and R. Karuppusamy and M. J. Keith and L. Levin and D. R. Lorimer and A. G. Lyne and M. A. McLaughlin and C. Ng and E. Petroff and A. Possenti and A. Ridolfi and B. W. Stappers and W. van Straten and T. M. Tauris and C. Tiburzi and N. Wex},
journal= {arXiv preprint arXiv:1802.03838},
year = {2018}
}
Comments
4 pages, 1 figure, 1 table, Proceedings of IAU Symposium 337 "Pulsar Astrophysics - The Next 50 Years" held in Jodrell Bank Observatory, UK Sept. 4-8 2017