{"paper":{"title":"A planetary system with two transiting mini-Neptunes near the radius valley transition around the bright M dwarf TOI-776","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Glidden, A. P. Hatzes, A. W. Mann, C Brice\\~no, C. E. Henze, C. M. Persson, C. Ziegler, D. Charbonneau, D. Gandolfi, D. W. Latham, E. B. Ting, E. C. Matthews, E. Goffo, E. Knudstrup, E. L. N. Jensen, E. Pall\\'e, E. W. Guenther, F. Dai, F. Rodler, G. Nowak, G. R. Ricker, H. J. Deeg, I. Georgieva, I. J. M. Crossfield, I. Mireles, J. Cabrera, J. E. Schlieder, J. F. Kielkopf, J. H. Livingston, J. Irwin, J. J. Lissauer, J. Korth, J. M. Jenkins, J. N. Winn, J. \\v{S}ubjak, K. A. Collins, K. D. Col\\'on, K. I. Collins, K. Molaverdikhani, K. W. F. Lam, L. M. Serrano, M. C. Nixon, M. Esposito, M. Fridlund, M. Paegert, N. J. Scott, N. Madhusudhan, N. Narita, O. Barrag\\'an, P. Chaturvedi, P. K\\'abath, R. C. Kidwell Jr., R. Cloutier, R. F. Goeke, R. Luque, R. Vanderspek, S. Albrecht, S. B. Howell, S. Grziwa, S. Redfield, S. Seager, Sz. Csizmadia, T. G. Tan, T. Hirano, V. Van Eylen, W. D. Cochran","submitted_at":"2020-09-17T14:36:51Z","abstract_excerpt":"We report the discovery and characterization of two transiting planets around the bright M1 V star LP 961-53 (TOI-776, J = 8.5 mag, M = 0.54+-0.03 Msun) detected during Sector 10 observations of the Transiting Exoplanet Survey Satellite (TESS). Combining the TESS photometry with HARPS radial velocities, as well as ground-based follow-up transit observations from MEarth and LCOGT telescopes, we measured for the inner planet, TOI-776 b, a period of 8.25 d, a radius of 1.85+-0.13 Re, and a mass of 4.0+-0.9 Me; and for the outer planet, TOI-776 c, a period of 15.66 d, a radius of 2.02+-0.14 Re, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.08338","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2009.08338/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"}