{"paper":{"title":"Neutral Iron Emission Lines From The Day-side Of KELT-9b -- The GAPS Programme With HARPS-N At TNG XX","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Bignamini, A. Fiorenzano, A. F. Lanza, A. Harutyunyan, A. Magazz\\`u, A. Maggio, A. S. Bonomo, A. Sozzetti, A. Wyttenbach, B. Lavie, C. Lovis, D. Ehrenreich, D. Nardiello, E. Covino, E. Molinari, E. Poretti, F. Borsa, G. Bruno, G. Frustagli, G. Leto, G. Micela, G. Piotto, G. Scandariato, I. Carleo, I. Pagano, J. Hoeijmakers, J. Maldonado, J.M. D\\'esert, K. Biazzo, L. Affer, L. Borsato, L. Di Fabrizio, L. Fossati, L. Malavolta, L. Mancini, L. Pino, M. Brogi, M. Damasso, M. Line, M. Pedani, M. Rainer, P. Giacobbe, R. Allart, R. Claudi, R. Cosentino, R. Smareglia, S. Benatti, S. Desidera, V. Nascimbeni, V. Panwar","submitted_at":"2020-04-23T17:31:08Z","abstract_excerpt":"We present the first detection of atomic emission lines from the atmosphere of an exoplanet. We detect neutral iron lines from the day-side of KELT-9b (Teq $\\sim$ 4, 000 K). We combined thousands of spectrally resolved lines observed during one night with the HARPS-N spectrograph (R $\\sim$ 115, 000), mounted at the Telescopio Nazionale Galileo. We introduce a novel statistical approach to extract the planetary parameters from the binary mask cross-correlation analysis. We also adapt the concept of contribution function to the context of high spectral resolution observations, to identify the lo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.11335","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/2004.11335/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"}