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We present the discovery of two mini Neptunes near a 2:1 orbital resonance configuration orbiting the K0 star TOI-1803. We describe their orbital architecture in detail and suggest some possible formation and evolution scenarios. Using…

Earth and Planetary Astrophysics · Physics 2025-04-02 T. Zingales , L. Malavolta , L. Borsato , D. Turrini , A. Bonfanti , D. Polychroni , G. Mantovan , D. Nardiello , V. Nascimbeni , A. F. Lanza , A. Bekkelien , A. Sozzetti , C. Broeg , L. Naponiello , M. Lendl , A. S. Bonomo , A. E. Simon , S. Desidera , G. Piotto , L. Mancini , M. J. Hooton , A. Bignamini , J. A. Egger , A. Maggio , Y. Alibert , D. Locci , L. Delrez , F. Biassoni , L. Fossati , L. Cabona , G. Lacedelli , I. Carleo , P. Leonardi , G. Andreuzzi , A. Brandeker , R. Cosentino , A. C. M. Correia , R. Claudi , R. Alonso , M. Damasso , T. G. Wilson , T. Bàrczy , M. Pinamonti , D. Baker , K. Barkaoui , D. Barrado Navascues , S. C. C. Barros , W. Baumjohann , T. Beck , C. Beichman , W. Benz , A. Bieryla , N. Billot , P. Bosch-Cabot , L. G. Bouma , D. R. Ciardi , A. Collier Cameron , K. A. Collins , Ian J. M. Crossfield , Sz. Csizmadia , P. E. Cubillos , M. B. Davies , M. Deleuil , A. Deline , O. D. S. Demangeon , B. O. Demory , A. Derekas , D. Dragomir , B. Edwards , D. Ehrenreich , A. Erikson , B. Falk , A. Fortier , M. Fridlund , A. Fukui , D. Gandolfi , K. Gazeas , M. Gillon , E. Gonzales , M. Gudel , P. Guerra , M. N. Guunther , A. Heitzmann , Ch. Helling , S. B. Howell , K. G. Isaak , J. Jenkins , L. L. Kiss , J. Korth , K. W. F. Lam , J. Laskar , A. Lecavelier des Etangs , D. Magrin , R. Matson , E. C. Matthews , P. F. L. Maxted , S. McDermott , M. Munari , C. Mordasini , N. Narita , G. Olofsson , R. Ottensamer , I. Pagano , E. Pallè , G. Peter , D. Pollacco , D. Queloz , R. Ragazzoni , N. Rando , F. Ratti , H. Rauer , I. Ribas , S. Salmon , N. C. Santos , G. Scandariato , S. Seager , D. Sègransan , A. M. S. Smith , J. Schlieder , R. P. Schwarz , A. Shporer , S. G. Sousa , M. Stalport , M. Steinberger , S. Sulis , Gy. M. Szabò , J. D. Twicken , S. Udry , V. Van Grootel , J. Venturini , E. Villaver , N. A. Walton , J. N. Winn

We report the confirmation and initial characterization of a compact and dynamically rich multiple giant planet system orbiting the solar analog TOI-7510. The system was recently identified as a candidate two-planet system in a…

Warm, large exoplanets with 10-100 day orbital periods pose a major challenge to our understanding of how planetary systems form and evolve. Although high eccentricity tidal migration has been invoked to explain their proximity to their…

We report the discovery of a third planet transiting the star TOI-1260, previously known to host two transiting sub-Neptune planets with orbital periods of 3.127 and 7.493 days, respectively. The nature of the third transiting planet with a…

Gas giant planets orbiting low-mass stars are uncommon outcomes of planet formation. Increasing the sample of well-characterised giants around early M dwarfs will enable population-level studies of their properties, offering valuable…

We present the discovery and characterization of six short-period, transiting giant planets from NASA's Transiting Exoplanet Survey Satellite (TESS) -- TOI-1811 (TIC 376524552), TOI-2025 (TIC 394050135), TOI-2145 (TIC 88992642), TOI-2152…

Earth and Planetary Astrophysics · Physics 2023-04-21 Joseph E. Rodriguez , Samuel N. Quinn , Andrew Vanderburg , George Zhou , Jason D. Eastman , Erica Thygesen , Bryson Cale , David R. Ciardi , Phillip A. Reed , Ryan J. Oelkers , Karen A. Collins , Allyson Bieryla , David W. Latham , B. Scott Gaudi , Coel Hellier , Kirill Sokolovsky , Jack Schulte , Gregor Srdoc , John Kielkopf , Ferran Grau Horta , Bob Massey , Phil Evans , Denise C. Stephens , Kim K. McLeod , Nikita Chazov , Vadim Krushinsky , Mourad Ghachoui , Boris Safonov , Cayla M. Dedrick , Dennis Conti , Didier Laloum , Steven Giacalone , Carl Ziegler , Pere Guerra Serra , Ramon Naves Nogues , Felipe Murgas , Edward J. Michaels , George R. Ricker , Roland K. Vanderspek , Joshua N. Winn , Jon M. Jenkins , Brett Addison , Owen Alfaro , D. R. Anderson , Elias Ayad , Timothy Bedding , Alexandr A. Belinsky , Zouhair Benkhaldoun , Perry Berlind , Cullen H. Blake , Michael J. Bowen , Brendan P. Bowler , Andrew W. Boyle , Dalton Branson , Cesar Briceno , Michael L. Calkins , Emma Campbell , Laura Chomiuk , Kevin I. Collins , Matthew A. Cornachione , Ahmed Daassou , Courtney D. Dressing , Gilbert A. Esquerdo , Dax L. Feliz , William Fong , Tianjun Gan , Holden Gill , Maria V. Goliguzova , Jarrod Hansen , Eric G. Hintz , Jonathan Horner , Chelsea X. Huang , David J. James , Jacob S. Jensen , Samson A. Johnson , Stephen R. Kane , Khalid Barkaoui , Myung-Jin Kim , Kingsley Kim , Rudolf B. Kuhn , Nicholas Law , Pablo Lewin , Huigen Liu , Michael B. Lund , Andrew W. Mann , Nate McCrady , Matthew W. Mengel , Jessica Mink , Lauren Murphy , Norio Narita , Patrick Newman , Jack Okumura , Hugh P. Osborn , Martin Paegert , Enric Palle , Joshua Pepper , Peter Plavchan , Alexander A. Popov , Markus Rabus , Jessica Ranshaw , Jennifer Rodriguez , Dong-Goo Roh , Michael A Reefe , Arjun B. Savel , Richard P. Schwarz , Avi Shporer , Robert J. Siverd , David H. Sliski , Keivan G. Stassun , Daniel J. Stevens , Abderahmane Soubkiou , Eric B. Ting , C. G. Tinney , Noah Vowell , Payton Walton , R. G. West , Maurice L. Wilson , Robert A. Wittenmyer , Justin M. Wittrock , Jason T. Wright , Hui Zhang , Evan Zobel

Long-period transiting planets provide the opportunity to better understand the formation and evolution of planetary systems. Their atmospheric properties remain largely unaltered by tidal or radiative effects of the host star, and their…

Hot Jupiters with close-by planetary companions are rare, with only a handful of them having been discovered so far. This could be due to their suggested dynamical histories, leading to the possible ejection of other planets. TOI-2109 b is…

TOI-1422 is a G2 V star ($V = 10.6$ mag) known to host a warm Neptune-sized planet, TOI-1422 b, with a mass and radius of about $9M_{\oplus}$ and $4R_{\oplus}$, on a circular orbit with a period of $12.997$ days. An outer planetary…

Earth and Planetary Astrophysics · Physics 2025-11-18 L. Naponiello , P. Leonardi , M. Damasso , M. -L. Steinmeyer , M. Stalport , C. Dorn , A. S. Bonomo , L. Mancini , A. Sozzetti , S. Benatti , S. Colombo , R. Cosentino

The TOI-421 planetary system contains two sub-Neptune-type planets and is a prime target to study the formation and evolution of planets and their atmospheres. The inner planet is especially interesting as the existence of a…

We report the confirmation and characterisation of TOI-1820~b, TOI-2025~b, and TOI-2158~b, three Jupiter-sized planets on short-period orbits around G-type stars detected by TESS. Through our ground-based efforts using the FIES and Tull…