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Related papers: The Transiting Multi-planet System HD15337: Two Ne…

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We aim to constrain the internal structure and composition of HD 15337 b and c, two short-period planets situated on opposite sides of the radius valley, using new transit photometry and radial velocity data. We acquire 6 new transit visits…

The detection and characterization of young planetary systems offers a direct path to study the processes that shape planet evolution. We report on the discovery of a sub-Neptune-size planet orbiting the young star HD 110082 (TOI-1098).…

Transiting planets around young stars are key benchmarks for our understanding of planetary systems. One of such candidates was identified around the K dwarf HD 18599 by TESS, labeled as TOI-179. We present the confirmation of the…

We present the 3-5 $\mu$m transmission spectrum of HD 15337 c (TOI-402.02), a sub-Neptune (2.526 R$_{\oplus}$, 6.792 M$_{\oplus}$, T$_{\rm eq}$$\sim$656 K) around a K1V star observed as part of the JWST COMPASS program. We reduce these…

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…

The multi-planetary system HD 106315 was recently found in K2 data . The planets have periods of $P_b \sim9.55$ and $P_c \sim 21.06\,$days, and radii of $ r_b = 2.44 \pm 0.17\, $ and $r_c = 4.35 \pm 0.23\, $ $R_{\oplus}$. The brightness of…

Although the number of exoplanets reported in the literature exceeds 5000 so far, only a few dozen of them are young planets ($\le$900 Myr). However, a complete characterization of these young planets is key to understanding the current…

The Transiting Exoplanet Survey Satellite (\textit{TESS}) mission was designed to perform an all-sky search of planets around bright and nearby stars. Here we report the discovery of two sub-Neptunes orbiting around the TOI 1062 (TIC…

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…

Earth and Planetary Astrophysics · Physics 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

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 present the bright (V$_{mag} = 9.12$), multi-planet system TOI-431, characterised with photometry and radial velocities. We estimate the stellar rotation period to be $30.5 \pm 0.7$ days using archival photometry and radial velocities.…

Earth and Planetary Astrophysics · Physics 2021-08-18 Ares Osborn , David J. Armstrong , Bryson Cale , Rafael Brahm , Robert A. Wittenmyer , Fei Dai , Ian J. M. Crossfield , Edward M. Bryant , Vardan Adibekyan , Ryan Cloutier , Karen A. Collins , E. Delgado Mena , Malcolm Fridlund , Coel Hellier , Steve B. Howell , George W. King , Jorge Lillo-Box , Jon Otegi , S. Sousa , Keivan G. Stassun , Elisabeth C. Matthews , Carl Ziegler , George Ricker , Roland Vanderspek , David W. Latham , S. Seager , Joshua N. Winn , Jon M. Jenkins , Jack S. Acton , Brett C. Addison , David R. Anderson , Sarah Ballard , David Barrado , Susana C. C. Barros , Natalie Batalha , Daniel Bayliss , Thomas Barclay , Björn Benneke , John Berberian , Francois Bouchy , Brendan P. Bowler , César Briceño , Christopher J. Burke , Matthew R. Burleigh , Sarah L. Casewell , David Ciardi , Kevin I. Collins , Benjamin F. Cooke , Olivier D. S. Demangeon , Rodrigo F. Díaz , C. Dorn , Diana Dragomir , Courtney Dressing , Xavier Dumusque , Néstor Espinoza , P. Figueira , Benjamin Fulton , E. Furlan , E. Gaidos , C. Geneser , Samuel Gill , Michael R. Goad , Erica J. Gonzales , Varoujan Gorjian , Maximilian N. Günther , Ravit Helled , Beth A. Henderson , Thomas Henning , Aleisha Hogan , Saeed Hojjatpanah , Jonathan Horner , Andrew W. Howard , Sergio Hoyer , Dan Huber , Howard Isaacson , James S. Jenkins , Eric L. N. Jensen , Andrés Jordán , Stephen R. Kane , Richard C. Kidwell , John Kielkopf , Nicholas Law , Monika Lendl , M. Lund , Rachel A. Matson , Andrew W. Mann , James McCormac , Matthew W. Mengel , Farisa Y. Morales , Louise D. Nielsen , Jack Okumura , Hugh P. Osborn , Erik A. Petigura , Peter Plavchan , Don Pollacco , Elisa V. Quintana , Liam Raynard , Paul Robertson , Mark E. Rose , Arpita Roy , Michael Reefe , Alexandre Santerne , Nuno C. Santos , Paula Sarkis , J. Schlieder , Richard P. Schwarz , Nicholas J. Scott , Avi Shporer , A. M. S. Smith , C. Stibbard , Chris Stockdale , Paul A. Strøm , Joseph D. Twicken , Thiam-Guan Tan , A. Tanner , J. Teske , Rosanna H. Tilbrook , C. G. Tinney , Stephane Udry , Jesus Noel Villaseñor , Jose I. Vines , Sharon X. Wang , Lauren M. Weiss , Richard G. West , Peter J. Wheatley , Duncan J. Wright , Hui Zhang , F. Zohrabi

We report the discovery and characterisation of the multi-planetary system around TOI-4311, a K dwarf kinematically between the Galactic thick disk and Hercules stream. TOI-4311 hosts an ultra-short-period super-Earth (P$\sim$0.99 d,…

Earth and Planetary Astrophysics · Physics 2026-05-13 Yoshi Nike Emilia Eschen , Thomas G. Wilson , Andrew Collier Cameron , Alexander James Mustill , Jo Ann Egger , Solène Ulmer-Moll , Davide Gandolfi , Alexis M. S. Smith , Olivier D. S. Demangeon , Sérgio G. Sousa , Andrea Bonfanti , Alexandre C. M. Correia , Vardan Adibekyan , Gaia Lacedelli , Alexis Brandeker , Camilla Pezzotti , Babatunde Akinsanmi , Yann Alibert , Roi Alonso , Tamas Bárczy , David Barrado , Susana C. C. Barros , Wolfgang Baumjohann , Willy Benz , Nicolas Billot , Luca Borsato , Christopher Broeg , Amadeo Castro-González , Szilard Csizmadia , Patricio E. Cubillos , Melvyn B. Davies , Magali Deleuil , Adrien Deline , Brice-Olivier Demory , Aliz Derekas , Giuseppe Di Persio , Billy Edwards , David Ehrenreich , Anders Erikson , Andrea Fortier , Luca Fossati , Malcolm Fridlund , Kosmas Gazeas , Michaël Gillon , Manuel Güdel , Maximilian N. Günther , Alexis Heitzmann , Ch. Helling , Kate G. Isaak , Jon M. Jenkins , Tatiana Keller , Laszlo L. Kiss , Daniel Kitzmann , Judith Korth , Kristine W. F. Lam , Jacques Laskar , Alain Lecavelier des Etangs , Adrien Leleu , Monika Lendl , Demetrio Magrin , Pierre F. L. Maxted , Bruno Merín , Christoph Mordasini , Valerio Nascimbeni , Göran Olofsson , Hugh P. Osborn , Roland Ottensamer , Isabella Pagano , Enric Pallé , Gisbert Peter , Glen Petitpas , Daniele Piazza , Giampaolo Piotto , Don Pollacco , Didier Queloz , Roberto Ragazzoni , Nicola Rando , Heike Rauer , Ignasi Ribas , Nuno C. Santos , Gaetano Scandariato , Damien Ségransan , Avi Shporer , André M. Silva , Attila E. Simon , Richard Southworth , Manu Stalport , Sophia Sulis , Gyula M. Szabó , Stéphane Udry , Bernd Ulmer , Valérie Van Grootel , Julia Venturini , Eva Villaver , Nicholas A. Walton , Sebastian Wolf , Carl Ziegler , Tiziano Zingales

The masses, atmospheric makeups, spin-orbit alignments, and system architectures of extrasolar planets can be best studied when the planets orbit bright stars. We report the discovery of three bodies orbiting HD 106315, a bright (V = 8.97…