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20182025
most citedSpeckle Observations of TESS Exoplanet Host Stars. II. Stellar Companions at 1-1000 AU and Implications for Small Planet Detection

89 citations · 1.1k across the 51 of their papers we have counts for

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40 papers · 1 filter

astro-ph.EP2025

TOI-283 b: A transiting mini-Neptune in a 17.6-day orbit discovered with TESS and ESPRESSO

F. Murgas, E. Pallé, A. Suárez Mascareño +51

Super-Earths and mini-Neptunes are missing from our Solar System, yet they appear to be the most abundant planetary types in our Galaxy. A detailed characterization of key planets…

astro-ph.EP2024

HD 21520 b: a warm sub-Neptune transiting a bright G dwarf

Molly Nies, Ismael Mireles, François Bouchy +49

We report the discovery and validation of HD 21520 b, a transiting planet found with TESS and orbiting a bright G dwarf (V=9.2, K, $R_{\star} = 1.04\pm 0.02…

astro-ph.EP2024

Revised Architecture and Two New Super-Earths in the HD 134606 Planetary System

Zhexing Li, Stephen R. Kane, Timothy D. Brandt +15

Multi-planet systems exhibit a diversity of architectures that diverge from the solar system and contribute to the topic of exoplanet demographics. Radial velocity (RV) surveys for…

astro-ph.EP2024

Revisiting the warm sub-Saturn TOI-1710b

J. Orell-Miquel, I. Carleo, F. Murgas +37

The Transiting Exoplanet Survey Satellite (TESS) provides a continuous suite of new planet candidates that need confirmation and precise mass determination from ground-based observ…

astro-ph.EP2023★ 15 cited

TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf

M. Mallorquín, E. Goffo, E. Pallé +79

We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49, and the a…

astro-ph.EP2023★ 37 cited

A super-massive Neptune-sized planet

L. Naponiello, L. Mancini, A. Sozzetti +55

Neptune-sized planets exhibit a wide range of compositions and densities, depending onf cators related to their formation and evolution history, such as the distance from their hos…

astro-ph.EP2023

TOI-2084 b and TOI-4184 b: two new sub-Neptunes around M dwarf stars

K. Barkaoui, M. Timmermans, A. Soubkiou +67

We present the discovery and validation of two TESS exoplanets orbiting nearby M dwarfs: TOI-2084b, and TOI-4184b. We characterized the host stars by combining spectra from Shane/K…

astro-ph.EP2023★ 12 cited

TESS and CHEOPS Discover Two Warm Sub-Neptunes Transiting the Bright K-dwarf HD 15906

Amy Tuson, Didier Queloz, Hugh P. Osborn +119

We report the discovery of two warm sub-Neptunes transiting the bright (G = 9.5 mag) K-dwarf HD 15906 (TOI 461, TIC 4646810). This star was observed by the Transiting Exoplanet Sur…

astro-ph.EP2023★ 6 cited

Revised Properties and Dynamical History for the HD 17156 System

Stephen R. Kane, Michelle L. Hill, Paul A. Dalba +7

From the thousands of known exoplanets, those that transit bright host stars provide the greatest accessibility toward detailed system characterization. The first known such planet…

astro-ph.EP2023★ 6 cited

TOI-733 b: a planet in the small-planet radius valley orbiting a Sun-like star

Iskra Y. Georgieva, Carina M. Persson, Elisa Goffo +40

We report the discovery of a hot ( 1055 K) planet in the small planet radius valley transiting the Sun-like star TOI-733, as part of the KESPRINT follow-up pr…

astro-ph.EP2023★ 57 cited

The two rings of (50000) Quaoar

C. L. Pereira, B. Sicardy, B. E. Morgado +66

Quaoar is a classical Trans-Neptunian Object (TNO) with an area equivalent diameter of 1,100 km and an orbital semi-major axis of 43.3 astronomical units. Based on stellar occultat…

astro-ph.EP2023★ 33 cited

A super-Earth and a mini-Neptune near the 2:1 MMR straddling the radius valley around the nearby mid-M dwarf TOI-2096

F. J. Pozuelos, M. Timmermans, B. V. Rackham +72

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, multitransit…

astro-ph.EP2023★ 34 cited

Doppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions

Katherine Laliotis, Jennifer A. Burt, Eric E. Mamajek +22

Directly imaging temperate rocky planets orbiting nearby, Sun-like stars with a 6-m-class IR/O/UV space telescope, recently dubbed the Habitable Worlds Observatory, is a high prior…

astro-ph.EP2023★ 4 cited

TESS Discovery of Twin Planets near 2:1 Resonance around Early M-Dwarf TOI 4342

Evan Tey, Chelsea X. Huang, Michelle Kunimoto +28

With data from the Transiting Exoplanet Survey Satellite (TESS), we showcase improvements to the MIT Quick-Look Pipeline (QLP) through the discovery and validation of a multi-plane…

astro-ph.EP2023★ 12 cited

VaTEST II: Statistical Validation of 11 TESS-Detected Exoplanets Orbiting K-type Stars

Priyashkumar Mistry, Kamlesh Pathak, Aniket Prasad +48

NASA's Transiting Exoplanet Survey Satellite (TESS) is an all-sky survey mission designed to find transiting exoplanets orbiting nearby bright stars. It has identified more than 32…

astro-ph.EP2023★ 20 cited

Characterization of a set of small planets with TESS and CHEOPS and an analysis of photometric performance

Dominic Oddo, Diana Dragomir, Alexis Brandeker +41

The radius valley carries implications for how the atmospheres of small planets form and evolve, but this feature is visible only with highly precise characterizations of many smal…

astro-ph.EP2022★ 4 cited

TESS discovery of a super-Earth and two sub-Neptunes orbiting the bright, nearby, Sun-like star HD 22946

Luca Cacciapuoti, Laura Inno, Giovanni Covone +51

We report the Transiting Exoplanet Survey Satellite (TESS) discovery of a three-planet system around the bright Sun-like star HD~22946(V=8.3 mag),also known as TIC~100990000, locat…

astro-ph.EP2022★ 67 cited

Two temperate super-Earths transiting a nearby late-type M dwarf

L. Delrez, C. A. Murray, F. J. Pozuelos +82

In the age of JWST, temperate terrestrial exoplanets transiting nearby late-type M dwarfs provide unique opportunities for characterising their atmospheres, as well as searching fo…

astro-ph.EP2022★ 29 cited

TOI-1468: A system of two transiting planets, a super-Earth and a mini-Neptune, on opposite sides of the radius valley

P. Chaturvedi, P. Bluhm, E. Nagel +67

We report the discovery and characterization of two small transiting planets orbiting the bright M3.0V star TOI-1468 (LSPM J0106+1913), whose transit signals were detected in the p…

astro-ph.EP2022★ 29 cited

TOI-836: A super-Earth and mini-Neptune transiting a nearby K-dwarf

Faith Hawthorn, Daniel Bayliss, Thomas G. Wilson +137

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 ( mag), high proper motion…

astro-ph.EP2022★ 15 cited

TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star

Alexis Heitzmann, George Zhou, Samuel N. Quinn +47

We report the discovery of TOI-4562 b (TIC-349576261), a Jovian planet orbiting a young F7V-type star, younger than the Praesepe/Hyades clusters (< Myr). This planet stands o…

astro-ph.EP2022

The TESS-Keck Survey. XI. Mass Measurements for Four Transiting sub-Neptunes orbiting K dwarf TOI-1246

Emma V. Turtelboom, Lauren M. Weiss, Courtney D. Dressing +78

Multi-planet systems are valuable arenas for investigating exoplanet architectures and comparing planetary siblings. TOI-1246 is one such system, with a moderately bright K dwarf (…

astro-ph.EP2022★ 10 cited

A close-in puffy Neptune with hidden friends: The enigma of TOI 620

Michael A. Reefe, Rafael Luque, Eric Gaidos +82

We present the validation of a transiting low-density exoplanet orbiting the M2.5 dwarf TOI 620 discovered by the NASA TESS mission. We utilize photometric data from both TESS and…

astro-ph.EP2022★ 21 cited

TESS discovery of a sub-Neptune orbiting a mid-M dwarf TOI-2136

Tianjun Gan, Abderahmane Soubkiou, Sharon X. Wang +60

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.…