{"paper":{"title":"A search for pulsations in the HgMn star HD 45975 with CoRoT photometry and ground-based spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Baglin, A. Jorissen, C. Ulusoy, C. Waelkens, E. Michel, E. Niemczura, E. Poretti, F. Borsa, G. Alecian, H. Hensberge, H. Lehmann, H. Van Winckel, J. F. Gameiro, K. De Smedt, K. Kaminski, L. Dumortier, L. Fossati, M. Auvergne, M. Briquet, M. Fagas, M. Rainer, M. Scardia, P. I. Papics, S. Ghazaryan, S. Hubrig, S. Van Eck, T. Morel, V. S. Schmid, W. Dimitrov, Y. Damerdji, Y. Fremat","submitted_at":"2013-11-18T13:28:30Z","abstract_excerpt":"The existence of pulsations in HgMn stars is still being debated. To provide the first unambiguous observational detection of pulsations in this class of chemically peculiar objects, the bright star HD 45975 was monitored for nearly two months by the CoRoT satellite. Independent analyses of the light curve provides evidence of monoperiodic variations with a frequency of 0.7572 c/d and a peak-to-peak amplitude of ~2800 ppm. Multisite, ground-based spectroscopic observations overlapping the CoRoT observations show the star to be a long-period, single-lined binary. Furthermore, with the notable e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4370","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"}