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We present the discovery of TOI-2136b, a sub-Neptune planet transiting every 7.85 days a nearby M4.5V-type star, identified through photometric measurements from the TESS mission. The host star is located $33$ pc away with a radius of…

We aim to refine the fundamental parameters of the TOI-2141 planetary system, which includes a transiting sub-Neptune orbiting a Sun-like star in a relatively long orbit of 18.26 days, by combining new photometric and spectroscopic…

We report the discovery of TOI-2285b, a sub-Neptune-sized planet transiting a nearby (42 pc) M dwarf with a period of 27.3 days. We identified the transit signal from the Transiting Exoplanet Survey Satellite photometric data, which we…

Sub-Neptunes with planetary radii of $R_{p} \simeq 2-4 R_{\oplus}$ are the most common planets around solar-type stars in short-period ($P<100$ d) orbits. It is still unclear, however, what their most likely composition is, that is whether…

We examined in depth the star BD+00 444 (GJ 105.5, TOI-2443; V = 9.5 mag; d = 23.9 pc), with the aim of characterizing and confirming the planetary nature of its small companion, the planet candidate TOI-2443.01, which was discovered by…

Small planets located at the lower mode of the bimodal radius distribution are generally assumed to be composed of iron and silicates in a proportion similar to that of the Earth. However, recent discoveries are revealing a new group of…

We present the discovery of two exoplanets transiting TOI-836 (TIC 440887364) using data from TESS Sector 11 and Sector 38. TOI-836 is a bright ($T = 8.5$ mag), high proper motion ($\sim\,200$ mas yr$^{-1}$), low metallicity…

地球与行星天体物理 · 物理学 2023-02-15 Faith Hawthorn , Daniel Bayliss , Thomas G. Wilson , Andrea Bonfanti , Vardan Adibekyan , Yann Alibert , Sérgio G. Sousa , Karen A. Collins , Edward M. Bryant , Ares Osborn , David J. Armstrong , Lyu Abe , Jack S. Acton , Brett C. Addison , Karim Agabi , Roi Alonso , Douglas R. Alves , Guillem Anglada-Escudé , Tamas Bárczy , Thomas Barclay , David Barrado , Susana C. C. Barros , Wolfgang Baumjohann , Philippe Bendjoya , Willy Benz , Allyson Bieryla , Xavier Bonfils , François Bouchy , Alexis Brandeker , Christopher Broeg , David J. A. Brown , Matthew R. Burleigh , Marco Buttu , Juan Cabrera , Douglas A. Caldwell , Sarah L. Casewell , David Charbonneau , Sébastian Charnoz , Ryan Cloutier , Andrew Collier Cameron , Kevin I. Collins , Dennis M. Conti , Nicolas Crouzet , Szilárd Czismadia , Melvyn B. Davies , Magali Deleuil , Elisa Delgado-Mena , Laetitia Delrez , Olivier D. S. Demangeon , Brice-Olivier Demory , Georgina Dransfield , Xavier Dumusque , Jo Ann Egger , David Ehrenreich , Philipp Eigmüller , Anders Erickson , Zahra Essack , Andrea Fortier , Luca Fossati , Malcolm Fridlund , Maximilian N. Günther , Manuel Güdel , Davide Gandolfi , Harvey Gillard , Michaël Gillon , Crystal Gnilka , Michael R. Goad , Robert F. Goeke , Tristan Guillot , Andreas Hadjigeorghiou , Coel Hellier , Beth A. Henderson , Kevin Heng , Matthew J. Hooton , Keith Horne , Steve B. Howell , Sergio Hoyer , Jonathan M. Irwin , James S. Jenkins , Jon M. Jenkins , Eric L. N. Jensen , Stephen R. Kane , Alicia Kendall , John F. Kielkopf , Laszlo L. Kiss , Gaia Lacedelli , Jacques Laskar , David W. Latham , Alain Lecavalier des Etangs , Adrien Leleu , Monika Lendl , Jorge Lillo-Box , Christophe Lovis , Djamel Mékarnia , Bob Massey , Tamzin Masters , Pierre F. L. Maxted , Valerio Nascimbeni , Louise D. Nielsen , Sean M. O'Brien , Göran Olofsson , Hugh P. Osborn , Isabella Pagano , Enric Pallé , Carina M. Persson , Giampaolo Piotto , Peter Plavchan , Don Pollacco , Didier Queloz , Roberto Ragazzoni , Heike Rauer , Ignasi Ribas , George Ricker , Damien Ségransan , Sébastien Salmon , Alexandre Santerne , Nuno C. Santos , Gaetano Scandariato , François-Xavier Schmider , Richard P. Schwarz , Sara Seager , Avi Shporer , Attila E. Simon , Alexis M. S. Smith , Gregor Srdoc , Manfred Steller , Olga Suarez , Gyula M. Szabó , Johanna Teske , Nicolas Thomas , Rosanna H. Tilbrook , Amaury H. M. J. Triaud , Stéphane Udry , Valérie Van Grootel , Nicholas Walton , Sharon X. Wang , Peter J. Wheatley , Joshua N. Winn , Robert A. Wittenmyer , Hui Zhang

We report the discovery and characterisation of a pair of sub-Neptunes transiting the bright K-dwarf TOI-1064 (TIC 79748331), initially detected in TESS photometry. To characterise the system, we performed and retrieved CHEOPS, TESS, and…

地球与行星天体物理 · 物理学 2022-01-19 Thomas G. Wilson , Elisa Goffo , Yann Alibert , Davide Gandolfi , Andrea Bonfanti , Carina M. Persson , Andrew Collier Cameron , Malcolm Fridlund , Luca Fossati , Judith Korth , Willy Benz , Adrien Deline , Hans-Gustav Florén , Pascal Guterman , Vardan Adibekyan , Matthew J. Hooton , Sergio Hoyer , Adrien Leleu , Alexander James Mustill , Sébastien Salmon , Sérgio G. Sousa , Olga Suarez , Lyu Abe , Abdelkrim Agabi , Roi Alonso , Guillem Anglada , Joel Asquier , Tamas Bárczy , David Barrado y Navascues , Susana C. C. Barros , Wolfgang Baumjohann , Mathias Beck , Thomas Beck , Nicolas Billot , Xavier Bonfils , Alexis Brandeker , Christopher Broeg , Edward M. Bryant , Matthew R. Burleigh , Marco Buttu , Juan Cabrera , Sébastien Charnoz , David R. Ciardi , Ryan Cloutier , William D. Cochran , Karen A. Collins , Knicole D. Colón , Nicolas Crouzet , Szilard Csizmadia , Melvyn B. Davies , Magali Deleuil , Laetitia Delrez , Olivier Demangeon , Brice-Olivier Demory , Diana Dragomir , Georgina Dransfield , David Ehrenreich , Anders Erikson , Andrea Fortier , Tianjun Gan , Samuel Gill , Michaël Gillon , Crystal L. Gnilka , Nolan Grieves , Sascha Grziwa , Manuel Güdel , Tristan Guillot , Jonas Haldemann , Kevin Heng , Keith Horne , Steve B. Howell , Kate G. Isaak , Jon M. Jenkins , Eric L. N. Jensen , Laszlo Kiss , Gaia Lacedelli , Kristine Lam , Jacques Laskar , David W. Latham , Alain Lecavelier des Etangs , Monika Lendl , Kathryn V. Lester , Alan M. Levine , John Livingston , Christophe Lovis , Rafael Luque , Demetrio Magrin , Wenceslas Marie-Sainte , Pierre F. L. Maxted , Andrew W. Mayo , Brian McLean , Marko Mecina , Djamel Mékarnia , Valerio Nascimbeni , Louise D. Nielsen , Göran Olofsson , Hugh P. Osborn , Hannah L. M. Osborne , Roland Ottensamer , Isabella Pagano , Enric Pallé , Gisbert Peter , Giampaolo Piotto , Don Pollacco , Didier Queloz , Roberto Ragazzoni , Nicola Rando , Heike Rauer , Seth Redfield , Ignasi Ribas , George R. Ricker , Martin Rieder , Nuno C. Santos , Gaetano Scandariato , François-Xavier Schmider , Richard P. Schwarz , Nicholas J. Scott , Sara Seager , Damien Ségransan , Luisa Maria Serrano , Attila E. Simon , Alexis M. S. Smith , Manfred Steller , Chris Stockdale , Gyula Szabó , Nicolas Thomas , Eric B. Ting , Amaury H. M. J. Triaud , Stéphane Udry , Vincent Van Eylen , Valérie Van Grootel , Roland K. Vanderspek , Valentina Viotto , Nicholas Walton , Joshua N. Winn

We report the discovery of a warm Neptune and a hot sub-Neptune transiting TOI-421 (BD-14 1137, TIC 94986319), a bright (V=9.9) G9 dwarf star in a visual binary system observed by the TESS space mission in Sectors 5 and 6. We performed…

地球与行星天体物理 · 物理学 2021-01-18 Ilaria Carleo , Davide Gandolfi , Oscar Barragán , John H. Livingston , Carina M. Persson , Kristine W. F. Lam , Aline Vidotto , Michael B. Lund , Carolina Villarreal D'Angelo , Karen A. Collins , Luca Fossati , Andrew W. Howard , Daria Kubyshkina , Rafael Brahm , Antonija Oklopčić , Paul Mollière , Seth Redfield , Luisa Maria Serrano , Fei Dai , Malcolm Fridlund , Francesco Borsa , Judith Korth , Massimiliano Esposito , Matías R. Díaz , Louise Dyregaard Nielsen , Coel Hellier , Savita Mathur , Hans J. Deeg , Artie P. Hatzes , Serena Benatti , Florian Rodler , Javier Alarcon , Lorenzo Spina , Ângela R. G. Santos , Iskra Georgieva , Rafael A. García , Lucía González-Cuesta , George R. Ricker , Roland Vanderspek , David W. Latham , Sara Seager , Joshua N. Winn , Jon M. Jenkins , Simon Albrecht , Natalie M. Batalha , Corey Beard , Patricia T. Boyd , François Bouchy , Jennifer A. Burt , R. Paul Butler , Juan Cabrera , Ashley Chontos , David Ciardi , William D. Cochran , Kevin I. Collins , Jeffrey D. Crane , Ian Crossfield , Szilard Csizmadia , Diana Dragomir , Courtney Dressing , Philipp Eigmüller , Michael Endl , Anders Erikson , Nestor Espinoza , Michael Fausnaugh , Fabo Feng , Erin Flowers , Benjamin Fulton , Erica J. Gonzales , Nolan Grieves , Sascha Grziwa , Eike W. Guenther , Natalia M. Guerrero , Thomas Henning , Diego Hidalgo , Teruyuki Hirano , Maria Hjorth , Daniel Huber , Howard Isaacson , Matias Jones , Andrés Jordán , Petr Kabáth , Stephen R. Kane , Emil Knudstrup , Jack Lubin , Rafael Luque , Ismael Mireles , Norio Narita , David Nespral , Prajwal Niraula , Grzegorz Nowak , Enric Palle , Martin Pätzold , Erik A Petigura , Jorge Prieto-Arranz , Heike Rauer , Paul Robertson , Mark E. Rose , Arpita Roy , Paula Sarkis , Joshua E. Schlieder , Damien Ségransan , Stephen Shectman , Marek Skarka , Alexis M. S. Smith , Jeffrey C. Smith , Keivan Stassun , Johanna Teske , Joseph D. Twicken , Vincent Van Eylen , Sharon Wang , Lauren M. Weiss , Aurélien Wyttenbach

We present the validation of two planets orbiting M dwarfs, TOI-1696b and TOI-2136b. Both planets are mini-Neptunes orbiting nearby stars, making them promising prospects for atmospheric characterization with the James Webb Space Telescope.…

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