{"paper":{"title":"Whole Earth Telescope Observations of the subdwarf B star KPD 1930+2752: A rich, short period pulsator in a close binary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Baran, A.C. Quint, A. F. M. Costa, A.-Y. Zhou, B. Berkey, C. Akan, C. Cameron, C.-W. Chen, D. Bolton, D. J. Sullivan, D. Terry, D. W. Kurtz, D. W. Winget, D. Zsuffa, E. Leibowitz, F. Mullally, G. Stachowski, G. Vauclair, H.-C. Lin, H. Pablo, H. Wu, I. Bruni, J. Bodnarik, J.-E. Solheim, J. L. Provencal, J.M. Matthews, J.-P. Gou, J.R. Eggen, K. Sekiguchi, M.A. Morris, M. Chevreton, M. D. Reed, M. Paparo, M. Vuckovic, N. Dolez, O. Cakirli, P.-M. Binder, P. Moskalik, R. Avila, R. Crowe, R. H. Ostensen, R. Janulis, R. Pretorius, R. Riddle, R. Silvotti, R. Szabo, S. D. Kawaler, S.L. Harms, S.-L. Kim, S. Marinoni, S. McDaniel, S.O. Kepler, S. Poindexter, S. Stewart, S. Zola, W. Ogloza, W.-P. Chen, X.-J. Jian, Y. Lipkin, Z. Csubry, Z. Liu","submitted_at":"2010-11-01T17:18:12Z","abstract_excerpt":"KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable with a known binary period just over two hours. The companion is most likely a white dwarf and the total mass of the system is close to the Chandresakhar limit. In this paper we report the results of Whole Earth Telescope (WET) photometric observations during 2003 and a smaller multisite campaign from 2002. From 355 hours of WET data, we detect 68 pulsation frequencies and suggest an additional 13 frequencies within a crowded and complex temporal spectrum between 3065 and 6343 $\\mu$Hz (periods b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.0387","kind":"arxiv","version":2},"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"}