{"paper":{"title":"Radial velocity confirmation of K2-100b: a young, highly irradiated, and low density transiting hot Neptune","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Fukui, A. P. Hatzes, C. M. Persson, D. Gandolfi, D. Kubyshkina, D. Nardiello, D. W. Latham, E. Guenther, E. Palle, F. Murgas, G. Antoniciello, G. Nowak, G. Piotto, H. J. Deeg, H. Parviainen, I. Pagano, J. Cabrera, J. de Leon, J. Korth, J. Livingston, L. Fossati, L. Malavolta, L. R. Bedin, M. C. V. Fridlund, M. Libralato, M. Tamura, N. Kusakabe, N. Narita, N. Zicher, O. Barrag\\'an, Ph. Eigm\\\"uller, P. Monta\\~n\\'es-Rodr\\'iguez, R. Luque, S. Aigrain, S. Albrecht, S. Grziwa, S. Redfield, V. Granata, V. M. Rajpaul, W. D. Cochran","submitted_at":"2019-09-11T18:00:00Z","abstract_excerpt":"We present a detailed analysis of HARPS-N radial velocity observations of K2-100, a young and active star in the Praesepe cluster, which hosts a transiting planet with a period of 1.7 days. We model the activity-induced radial velocity variations of the host star with a multi-dimensional Gaussian Process framework and detect a planetary signal of $10.6 \\pm 3.0 {\\rm m\\,s^{-1}}$, which matches the transit ephemeris, and translates to a planet mass of $21.8 \\pm 6.2 M_\\oplus$. We perform a suite of validation tests to confirm that our detected signal is genuine. This is the first mass measurement "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05252","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.05252/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}