{"paper":{"title":"The ESPRESSO transmission spectrum of HD$\\,$189733$\\,$b : Extracting the planetary sodium and lithium signatures amid stellar contamination","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Psaridi, A. Sozzetti, A. Su\\'arez Mascare\\~no, C. J. A. P. Martins, C. Lovis, D. Ehrenreich, D. Mounzer, E. Palle, H. Chakraborty, I. Carleo, J. I. Gonz\\'alez Hern\\'andez, J. Rodrigues, J. V. Seidel, M. Lendl, M. R. Zapatero Osorio, M. Steiner, N. Santos, P. Molaro, R. Allart, S. Cristiani, V. Bourrier, W. Dethier, Y. Alibert","submitted_at":"2025-06-26T16:40:28Z","abstract_excerpt":"While transmission spectroscopy has allowed us to detect many atomic and molecular species in exoplanet atmospheres, the improvement in resolution and signal-to-noise ratio enabled us to become sensitive to planet-occulted line distortions (POLDs) in the spectrum that are induced by center-to-limb variations and the Rossiter-McLaughlin effect. POLDs can bias the interpretation of the transmission spectrum, and it is difficult to correct for them with stellar models. We analyzed two ESPRESSO transits (R $\\sim$ 140$\\,$000) of the archetypal hot Jupiter HD$\\,$189733$\\,$b. The transmission spectru"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.21459","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/2506.21459/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"}