{"paper":{"title":"High-precision photometry by telescope defocussing. VII. The ultra-short period planet WASP-103","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Popovas, C. Snodgrass, C. von Essen, D. Juncher, D. M. Bramich, D. Starkey, G. D'Ago, H. Korhonen, J. Budaj, John Southworth, J. Skottfelt, J. Surdej, K. A. Alsubai, L. Mancini, M. Dominik, M. Hundertmark, M. Rabus, O. Wertz, R. Figuera Jaimes, R. W. Schmidt, S. Calchi Novati, S. Ciceri, S. Rahvar, T. C. Hinse, T. Haugbolle, Th. Henning, U. G. Jorgensen, V. Bozza","submitted_at":"2014-11-11T11:21:23Z","abstract_excerpt":"We present 17 transit light curves of the ultra-short period planetary system WASP-103, a strong candidate for the detection of tidally-induced orbital decay. We use these to establish a high-precision reference epoch for transit timing studies. The time of the reference transit midpoint is now measured to an accuracy of 4.8s, versus 67.4s in the discovery paper, aiding future searches for orbital decay. With the help of published spectroscopic measurements and theoretical stellar models, we determine the physical properties of the system to high precision and present a detailed error budget f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2767","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"}