activity
20132026
most citedPlanetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization

129 citations · 299 across the 46 of their papers we have counts for

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22 papers · 1 filter

astro-ph.EP2025

From Earths to Super-Earths: Five New Small Planets Transiting M Dwarf Stars

Jonathan Gomez Barrientos, Heather A. Knutson, Morgan Saidel +39

Earth-sized planets transiting M dwarf stars present one of the best opportunities with current facilities for studying the atmospheric and bulk compositions of terrestrial worlds.…

astro-ph.EP2025

Multicolour Validation of Two Temperate Mini-Neptunes Around M-dwarf Habitable Zones

Chengzi Jiang, Aleksandra Selezneva, Hannu Parviainen +17

For small planets orbiting within the habitable zones of their host stars, multicolour validation via photometric transit observations offers an efficient alternative to prioritize…

astro-ph.EP2025

Precise mass and radius determination for two new and one known Neptune-sized planets around G Dwarf hosts

Ilaria Carleo, Grzegorz Nowak, Felipe Murgas +56

As part of the KESPRINT collaboration, we present the discovery and characterization of three exoplanets in the sub-Neptune to super-Neptune regime, spanning key regions of the exo…

astro-ph.EP2025

Kepler-1624b Has No Significant Transit Timing Variations

Haedam Im, Morgan Saidel, Heather A. Knutson +9

It is relatively rare for gas giant planets to have resonant or near-resonant companions, but these systems are particularly useful for constraining planet formation and migration…

astro-ph.EP2025

Stellar Obliquities of Young Systems, Atmospheres Undergoing Contraction and Escape (SOYSAUCE): a likely aligned orbit for the 3 Myr planet TIDYE-1 b

Madyson G. Barber, Andrew W. Mann, Marshall C. Johnson +12

Despite the wide range of planet-star (mis)alignments in the mature population of transiting exoplanets, the small number of known young transiting planets are nearly all aligned w…

astro-ph.EP2025

Identifying close-in Jupiters that arrived via disk migration: Evidence of primordial alignment, preference of nearby companions and hint of runaway migration

Yugo Kawai, Akihiko Fukui, Noriharu Watanabe +2

Two leading hypotheses for hot Jupiter migration are disk migration and high-eccentricity migration (HEM). Stellar obliquity is commonly used to distinguish them, as high obliquity…

astro-ph.EP2025

The Polar Orbit of TOI-2374 b, a Planet in the Neptunian Ridge

Samuel W. Yee, Patrick Tamburo, Gudmundur Stefánsson +11

The ``Neptunian ridge'' is a recently identified peak in the frequency of planets with sizes between that of Neptune and Saturn orbiting their host stars with periods between 3 and…

astro-ph.EP2025★ 2 cited

TrES-1 b: A Case Study in Detecting Secular Evolution of Exoplanet Orbits

Simone R. Hagey, Billy Edwards, Angelos Tsiaras +43

We present a comprehensive analysis of transit, eclipse, and radial velocity data of the hot Jupiter TrES-1 b and confirm evidence of orbital variations on secular timescales. Appa…

astro-ph.EP2025

Validation of TESS Planet Candidates with Multi-Color Transit Photometry and TRICERATOPS+

Jonathan Gomez Barrientos, Michael Greklek-McKeon, Heather A. Knutson +33

We present an upgraded version of TRICERATOPS, a software package designed to calculate false positive probabilities for planet candidates identified by the Transiting Exoplanet Su…

astro-ph.EP2025

The mass of TOI-654 b: A short-period sub-Neptune transiting a mid-M dwarf

Kai Ikuta, Norio Narita, Takuya Takarada +40

Sub-Neptunes are small planets between the size of the Earth and Neptune. The orbital and bulk properties of transiting sub-Neptunes can provide clues for their formation and evolu…

astro-ph.EP2025★ 1 cited

Discovery of a transiting hot water-world candidate orbiting Ross 176 with TESS and CARMENES

S. Geraldía-González, J. Orell-Miquel, E. Pallé +30

The case of Ross 176 is a late K-type star that hosts a promising water-world candidate planet. The star has a radius of =0.5690.020 and a mass of …

astro-ph.EP2025

Updated Masses for the Gas Giants in the Eight-Planet Kepler-90 System Via Transit-Timing Variation and Radial Velocity Observations

David E. Shaw, Lauren M. Weiss, Eric Agol +28

The eight-planet Kepler-90 system exhibits the greatest multiplicity of planets found to date. All eight planets are transiting and were discovered in photometry from the NASA Kepl…

astro-ph.EP2025

An Aligned Sub-Neptune Revealed with MAROON-X and a Tendency Towards Alignment for Small Planets

Alex S. Polanski, Ian J. M. Crossfield, Andreas Seifahrt +9

We present the Rossiter-McLaughlin measurement of the sub-Neptune TOI-1759A b with MAROON-X. A joint analysis with MuSCAT3 photometry and nine additional TESS transits produces a s…

astro-ph.EP2025

The TESS Grand Unified Hot Jupiter Survey. III. Thirty More Giant Planets

Samuel W. Yee, Joshua N. Winn, Joel D. Hartman +123

We present the discovery of 30 transiting giant planets that were initially detected using data from NASA's Transiting Exoplanet Survey Satellite (TESS) mission. These new planets…

astro-ph.EP2025

TOI-1846b: A super-Earth in the radius valley orbiting a nearby M dwarf

Abderahmane Soubkiou, Khalid Barkaoui, Zouhair Benkhaldoun +42

We present the discovery and validation of a super-Earth planet orbiting the M dwarf star TOI-1846 (TIC 198385543). The host star(Kmag = 9.6)is located 47 pc away and has a radius…

astro-ph.EP2025★ 7 cited

Multi-band, Multi-epoch Photometry of the Spot-crossing System TOI-3884: Refined System Geometry and Spot Properties

Mayuko Mori, Akihiko Fukui, Teruyuki Hirano +10

Spot-crossing transits offer a unique opportunity to probe spot properties such as temperature, size, and surface distribution. TOI-3884 is a rare system in which spot-crossing fea…

astro-ph.EP2025★ 10 cited

A transiting giant planet in orbit around a 0.2-solar-mass host star

Edward M. Bryant, Andrés Jordán, Joel D. Hartman +56

Planet formation models suggest that the formation of giant planets is significantly harder around low-mass stars, due to the scaling of protoplanetary disc masses with stellar mas…

astro-ph.EP2025

The Eccentricity Distribution of Warm Sub-Saturns in TESS

Tyler R. Fairnington, Jiayin Dong, Chelsea X. Huang +45

We present the eccentricity distribution of warm sub-Saturns (4-8 Re, 8-200 day periods) as derived from an analysis of transit light curves from NASA's Transiting Exoplanet Survey…

astro-ph.EP2025

TOI-6478 b: a cold under-dense Neptune transiting a fully convective M dwarf from the thick disc

Madison G. Scott, Amaury H. M. J. Triaud, Khalid Barkaoui +25

Growing numbers of exoplanet detections continue to reveal the diverse nature of planetary systems. Planet formation around late-type M dwarfs is of particular interest. These syst…

astro-ph.SR2025

An Oasis in the Brown Dwarf Desert: Confirmation of Two Low-mass Transiting Brown Dwarfs Discovered by TESS

Elina Y. Zhang, Theron W. Carmichael, Daniel Huber +14

As the intermediate-mass siblings of stars and planets, brown dwarfs (BDs) are vital to study for a better understanding of how objects change across the planet-to-star mass range.…

astro-ph.EP2025★ 2 cited

11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

Noah Vowell, Joseph E. Rodriguez, David W. Latham +39

We present the discovery of 11 new transiting brown dwarfs and low-mass M-dwarfs from NASA's TESS mission: TOI-2844, TOI-3122, TOI-3577, TOI-3755, TOI-4462, TOI-4635, TOI-4737, TOI…

astro-ph.EP2025★ 1 cited

A Disintegrating Rocky Planet with Prominent Comet-like Tails Around a Bright Star

Marc Hon, Saul Rappaport, Avi Shporer +21

We report the discovery of BD+054868Ab, a transiting exoplanet orbiting a bright () K-dwarf (TIC 466376085) with a period of 1.27 days. Observations from NASA's Tr…