{"paper":{"title":"Massive search of spot- and facula-crossing events in 1598 exoplanetary transit lightcurves","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. F. Valeev, A. G. Gutaev, A. Marchini, A. Selezneva, A. V. Veselova, A. Wunsche, C. R. Knight, D. R. Gadelshin, E. Fern\\'andez-Laj\\'us, E. Jehin, E. N. Sokov, E. Pak\\v{s}tien\\.e, F. Salvaggio, G. G. Valyavin, G. M. Beskin, G. Sh. Mitiani, H. A. Dale, I. A. Sokova, J. Garlitz, J. K. T. Qvam, K. Antonyuk, K. Barkaoui, L. Delrez, M. Bretton, M. Gillon, M. Salisbury, N. Esseiva, P. Bosch-Cabot, P. Evans, P. Guerra, R. Papini, R. P. Di Sisto, R. V. Baluev, S. Gu{\\dh}mundsson, S. Shadick, T. C. Hinse, T. Kim, V. N. Aitov, V.-P. Hentunen, V. Sh. Shaidulin, W. Kang, Y. Jongen, Y. Ogmen","submitted_at":"2021-05-04T18:53:36Z","abstract_excerpt":"We developed a dedicated statistical test for a massive detection of spot- and facula-crossing anomalies in multiple exoplanetary transit lightcurves, based on the frequentist $p$-value thresholding. This test was used to augment our algorithmic pipeline for transit lightcurves analysis. It was applied to $1598$ amateur and professional transit observations of $26$ targets being monitored in the EXPANSION project. We detected $109$ statistically significant candidate events revealing a roughly $2:1$ asymmetry in favor of spots-crossings over faculae-crossings. Although some candidate anomalies"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.01704","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/2105.01704/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"}