A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266

Autor: E. O. Cadena Zepeda, David Barrado, Howard Isaacson, Daniel Huber, R. Petrucci, Paul Robertson, Abderahmane Soubkiou, Alan M. Watson, Allyson Bieryla, Prajwal Niraula, Karen A. Collins, Kevin Heng, V. Maigne, Lionel Garcia, Maria Morales-Calderon, Joshua N. Winn, Z. Essack, Amaury H. M. J. Triaud, G. Guisa, James McCormac, Brice-Olivier Demory, David W. Latham, Courtney D. Dressing, Arjun B. Savel, Khalid Barkaoui, Roberto Zambelli, J. D. Twicken, E. E. Lugo-Ibarra, Jon M. Jenkins, Mourad Ghachoui, Juan C. Suárez, Steven Giacalone, Jorge Lillo-Box, Y. Gómez Maqueo Chew, Marko Sestovic, George R. Ricker, Stephen R. Kane, L. Figueroa, U. Schroffenegger, Andrew Vanderburg, J. A. Franco Herrera, J. Haldemann, Lauren M. Weiss, Willy Benz, Simon L. Grimm, Arpita Roy, Brett M. Morris, Laurence Sabin, Leticia Carigi, Keivan G. Stassun, Didier Queloz, E. Colorado, Chelsea X. Huang, Fei Dai, P. Guerra, Christoph Mordasini, Zouhair Benkhaldoun, Benjamin V. Rackham, J. de Wit, G. Srdoc, Jack J. Lissauer, Francisco J. Pozuelos, Emmanuel Jehin, Sara Seager, Artem Burdanov, E. Jofre, Michaël Gillon, Ashley Chontos, T. Calvario-Velasquez, François Bouchy, G. Sierra Diaz, J. Herrera, Natalie M. Batalha
Přispěvatelé: Swiss National Science Foundation, Universidad Nacional Autónoma de México, Australian Research Council, Fonds de la Recherche Scientifique (Fédération Wallonie-Bruxelles), Ministerio de Ciencia e Innovación (España), European Coal and Steel Community, National Aeronautics and Space Administration (US), Junta de Andalucía, European Research Council, Queloz, Didier [0000-0002-3012-0316], Apollo - University of Cambridge Repository
Rok vydání: 2020
Předmět:
Zdroj: Digibug: Repositorio Institucional de la Universidad de Granada
Universidad de Granada (UGR)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Digibug. Repositorio Institucional de la Universidad de Granada
Consejo Superior de Investigaciones Científicas (CSIC)
ISSN: 1432-0746
0004-6361
Popis: We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting the bright (K = 8:8), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the planetary nature of TOI-1266 b and c using four sectors of TESS photometry and data from the newly-commissioned 1-m SAINT-EX telescope located in San Pedro Mártir (México). We also include additional groundbased follow-up photometry as well as high-resolution spectroscopy and high-angular imaging observations. The inner, larger planet has a radius of R = 2:37+0:16 -0:12 R and an orbital period of 10.9 days. The outer, smaller planet has a radius of R = 1:56+0:15 -0:13 R on an 18.8-day orbit. The data are found to be consistent with circular, co-planar and stable orbits that are weakly influenced by the 2:1 mean motion resonance. Our TTV analysis of the combined dataset enables model-independent constraints on the masses and eccentricities of the planets. We find planetary masses of Mp = 13:5+11:0 -9:0 M (
Embassy of Mexico in Bern
Swiss National Science Foundation (SNSF)
Programa de Apoyo a Proyectos de Investigacion e Innovacion Tecnologica (PAPIIT) Universidad Nacional Autonoma de Mexico IN-107518
DGAPA
Australian Research Council
Fonds de la Recherche Scientifique - FNRS FRFC 2.5.594.09
Swiss National Science Fundation (SNF) - University of Liege
Spanish public funds for research ESP2017-87676-2-2 RYC-2012-09913
Spanish Government
National Aeronautics & Space Administration (NASA)
NASA High-End Computing (HEC) Program through the NASA
Baja California, Mexico - Spanish State Research Agency (AEI) MDM-2017-0737
Unidad de Excelencia "Maria de Maeztu"- Centro de Astrobiologia (INTA-CSIC)
Junta de Andalucía
European Research Council (ERC) 336480
Alfred P. Sloan Foundation
National Aeronautics & Space Administration (NASA) 80NSSC18K1585 80NSSC19K0379
National Science Foundation (NSF) AST-1717000
Antoine de Saint-Exupery Youth Foundation
Databáze: OpenAIRE
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