{"paper":{"title":"Tests of Gravitational Symmetries with Pulsar Binary J1713+0747","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. G. Lyne, A. Jessner, A. Krieger, A. Possenti, B. W. Stappers, C. G. Bassa, C. Jordan, C. Tiburzi, D. J. Champion, D. J. Nice, D. Perrodin, E. Fonseca, E. Graikou, G. Desvignes, G. H. Janssen, G. Jones, G. Shaifullah, G. Theureau, I. Cognard, I. H. Stairs, J. A. Ellis, J. P. W. Verbiest, J. Swiggum, J. W. McKee, J. W. T. Hessels, K. Crowter, K. J. Lee, K. Lazaridis, K. Liu, K. Stovall, L. Guillemot, L. Lentati, L. Levin, M. A. McLaughlin, M. Burgay, M. E. Gonzalez, M. Kramer, M. L. Jones, M. T. Lam, N. Wex, P. B. Demorest, P. Lazarus, R. D. Ferdman, R. Karuppusamy, R. N. Caballero, R. Smits, S. M. Ransom, S. Os{\\l}owski, S. Sanidas, T. Dolch, T. Pennucci, W. W. Zhu, Z. Arzoumanian","submitted_at":"2018-02-26T09:04:58Z","abstract_excerpt":"Symmetries play an important role in modern theories of gravity. The strong equivalence principle (SEP) constitutes a collection of gravitational symmetries which are all implemented by general relativity. Alternative theories, however, are generally expected to violate some aspects of SEP. We test three aspects of SEP using observed change rates in the orbital period and eccentricity of binary pulsar J1713+0747: 1. the gravitational constant's constancy as part of locational invariance of gravitation; 2. the post-Newtonian parameter $\\hat{\\alpha}_3$ in gravitational Lorentz invariance; 3. the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.09206","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}