{"paper":{"title":"K2-290: a warm Jupiter and a mini-Neptune in a triple-star system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. B. Justesen, A. Erikson, A. M. S. Smith, A. P. Hatzes, C. M. Persson, D. Gandolfi, D. Hidalgo, D. Nespral, E. Guenther, E. Palle, F. Dai, F. Rodler, G. Antoniciello, G. Nowak, H. Deeg, H. Rauer, J. Cabrera, J. de Leon, J. H. Livingston, J. Korth, J. N. Winn, J. Prieto-Arranz, K. W. F. Lam, M. Endl, M. Esposito, M. Fridlund, M. Hjorth, M. Kuzuhara, M. P\\\"atzold, N. Narita, O. Barrag\\'an, P. Heeren, Ph. Eigm\\\"uller, P. Montanes-Rodriguez, R. Alonso, R. Luque, S. Albrecht, S. Grziwa, S. Redfield, Sz. Csizmadia, T. Hirano, T. Trifonov, V. Van Eylen, W. D. Cochran","submitted_at":"2019-01-11T19:00:10Z","abstract_excerpt":"We report the discovery of two transiting planets orbiting K2-290 (EPIC 249624646), a bright (V=11.11) late F-type star residing in a triple-star system. It was observed during Campaign 15 of the K2 mission, and in order to confirm and characterise the system, follow-up spectroscopy and AO imaging were carried out using the FIES, HARPS, HARPS-N, and IRCS instruments. From AO imaging and Gaia data we identify two M-dwarf companions at a separation of $113 \\pm 2$ AU and $2467_{-155}^{+177}$ AU. From radial velocities, K2 photometry, and stellar characterisation of the host star, we find the inne"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.03716","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"}