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The NASA space telescope $TESS$ is currently in the extended mission of its all-sky search for new transiting planets. Of the thousands of candidates that TESS is expected to deliver, transiting planets orbiting nearby M dwarfs are…

Sub-Neptunes with $2-3R_\oplus$ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small…

Earth and Planetary Astrophysics · Physics 2024-05-22 Y. Hori , A. Fukui , T. Hirano , N. Narita , J. P. de Leon , H. T. Ishikawa , J. D. Hartman , G. Morello , N. Abreu García , L. Álvarez Hernández , V. J. S. Béjar , Y. Calatayud-Borras , I. Carleo , G. Enoc , E. Esparza-Borges , I. Fukuda , D. Galán , S. Geraldía-González , Y. Hayashi , M. Ikoma , K. Ikuta , K. Isogai , T. Kagetani , Y. Kawai , K. Kawauchi , T. Kimura , T. Kodama , J. Korth , N. Kusakabe , A. Laza-Ramos , J. H. Livingston , R. Luque , K. Miyakawa , M. Mori , S. Muñoz Torres , F. Murgas , J. Orell-Miquel , E. Palle , H. Parviainen , A. Peláez-Torres , M. Puig-Subirá , M. Sánchez-Benavente , P. Sosa-Guillén , M. Stangret , Y. Terada , N. Watanabe , G. Á. Bakos , K. Barkaoui , C. Beichman , Z. Benkhaldoun , A. W. Boyle , D. R. Ciardi , C. A. Clark , K. A. Collins , K. I. Collins , D. M. Conti , I. J. M. Crossfield , M. E. Everett , E. Furlan , M. Ghachoui , M. Gillon , E. J. Gonzales , J. Higuera , K. Horne , S. B. Howell , E. Jehin , K. V. Lester , M. B. Lund , R. Matson , E. C. Matthews , F. J. Pozuelos , B. S. Safonov , J. E. Schlieder , R. P. Schwarz , R. Sefako , G. Srdoc , I. A. Strakhov , W. C. Waalkes , C. Ziegler , D. Charbonneau , Z. Essack , M. Timmermans , N. M. Guerrero , H. Harakawa , C. Hedges , M. Ishizuka , J. M. Jenkins , M. Konishi , T. Kotani , T. Kudo , T. Kurokawa , M. Kuzuhara , J. Nishikawa , M. Omiya , G. R. Ricker , S. Seager , T. Serizawa , S. Striegel , M. Tamura , A. Ueda , R. Vanderspek , S. Vievard , J. N. Winn

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…

Several planetary formation models have been proposed to explain the observed abundance and variety of compositions of super-Earths and mini-Neptunes. In this context, multitransiting systems orbiting low-mass stars whose planets are close…

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…

Earth and Planetary Astrophysics · Physics 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 TOI-2407 b, a warm Neptune-sized planet with a radius of 4.26 $\pm$ 0.26 R$_\oplus$, orbiting an early M-type star with a period of 2.7 days and an equilibrium temperature of 705 $\pm$ 12 K. The planet was…

TOI-1695 is a V-mag=13 M-dwarf star from the northern hemisphere at 45$\,$pc from the Sun, around which a 3.134-day periodic transit signal from a super-Earth candidate was identified in TESS photometry. With a transit depth of 1.3$\,$mmag,…

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…

TOI-1203 is a bright (V=8.6) G3 V star known to host a transiting warm sub-Neptune on a 25.5 d orbit. Here we report on an intensive high-precision radial velocity and photometric follow-up campaign carried out with the HARPS spectrograph…

Earth and Planetary Astrophysics · Physics 2025-09-15 D. Gandolfi , A. Alnajjarine , L. M. Serrano , J. A. Egger , K. W. F. Lam , J. Cabrera , A. P. Hatzes , M. Fridlund , M. Garbaccio Gili , T. G. Wilson , W. D. Cochran , A. Brandeker , E. Goffo , S. G. Sousa , G. Nowak , A. Heitzmann , C. Hellier , J. Venturini , J. Livingston , A. Bonfanti , O. Barragán , V. Adibekyan , E. Knudstrup , Y. Alibert , S. Grziwa , C. Ziegler , L. Fossati , F. Murgas , A. C. M. Correia , S. H. Albrecht , J. Laskar , E. W. Guenther , S. J. A. J. Salmon , S. Redfield , N. Billot , H. J. Deeg , L. Delrez , L. Palethorpe , V. Van Eylen , F. Rodler , J. Alarcon , J. M. Jenkins , J. D. Twicken , A. W. Mann , R. Alonso , J. Asquier , T. Bárczy , D. Barrado , S. C. C. Barros , W. Baumjohann , W. Benz , L. Borsato , C. Broeg , M. Buder , P. Chaturvedi , A. Collier Cameron , Sz. Csizmadia , P. E. Cubillos , M. B. Davies , M. Deleuil , A. Deline , O. D. S. Demangeon , B. -O. Demory , A. Derekas , B. Edwards , D. Ehrenreich , A. Erikson , A. Fortier , K. Gazeas , M. Gillon , M. Güdel , M. N. Günther , Ch. Helling , K. G. Isaak , L. L. Kiss , J. Korth , N. Law , A. Lecavelier des Etangs , A. Leleu , M. Lendl , P. Leonardi , D. Magrin , G. Mantovan , L. Marafatto , P. F. L. Maxted , M. Mecina , B. Merín , C. Mordasini , V. Nascimbeni , A. Nigioni , G. Olofsson , H. P. Osborn , R. Ottensamer , I. Pagano , E. Pallé , C. M. Persson , G. Peter , D. Piazza , G. Piotto , D. Pollacco , D. Queloz , R. Ragazzoni , N. Rando , H. Rauer , I. Ribas , G. R. Ricker , N. C. Santos , G. Scandariato , S. Seager , D. Ségransan , A. E. Simon , A. M. S. Smith , M. Stalport , S. Sulis , Gy. M. Szabó , S. Udry , S. Ulmer-Moll , V. Van Grootel , E. Villaver , N. A. Walton , J. N. Winn , S. Wolf , T. Zingales
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