activity
20092026
most citedMasses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets

497 citations · 1.2k across the 28 of their papers we have counts for

collaborators

30 papers

astro-ph.SR2026

Paving the Road to the Habitable Worlds Observatory with High-Resolution Imaging I: New and Archival Speckle Observations of Potential HWO Target Stars

Zachary D. Hartman, Catherine A. Clark, Michael B. Lund +15

One of the key goals of the Habitable Worlds Observatory (HWO) is to directly image about 25 potentially habitable exoplanets and determine their properties. This challenge will re…

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.SR2025

Inside the Iron Curtain: A Long Term Look at the Iron Stars XX Oph and AS 325

Steve B. Howell, Venu M. Kalari, Andy Adamson +1

The Iron Stars XX Oph and AS 325, both binaries consisting of a Be + late K,M II star present remarkable optical spectra. Low velocity, dense winds from the late type star collide…

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.EP2024

OrCAS: Origins, Compositions, and Atmospheres of Sub-neptunes. I. Survey Definition

Ian J. M. Crossfield, Alex S. Polanski, Paul Robertson +61

Sub-Neptunes - volatile-rich exoplanets smaller than Neptune - are intrinsically the most common type of planet known. However, the formation and nature of these objects, as well a…

astro-ph.EP2024

Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b

Ilaria Carleo, Oscar Barrágan, Carina M. Persson +67

Hot and warm Jupiters might have undergone the same formation and evolution path, but the two populations exhibit different distributions of orbital parameters, challenging our und…

astro-ph.EP2024

Three short-period Earth-sized planets around M dwarfs discovered by TESS: TOI-5720b, TOI-6008b and TOI-6086b

K. Barkaoui, R. P. Schwarz, N. Narita +53

One of the main goals of the NASA's TESS (Transiting Exoplanet Survey Satellite) mission is the discovery of Earth-like planets around nearby M-dwarf stars. Here, we present the di…

astro-ph.EP2024★ 53 cited

The TESS-Keck Survey XX: 15 New TESS Planets and a Uniform RV Analysis of all Survey Targets

Alex S. Polanski, Jack Lubin, Corey beard +69

The Transiting Exoplanet Survey Satellite (TESS) has discovered hundreds of new worlds, with TESS planet candidates now outnumbering the total number of confirmed planets from $\te…

astro-ph.EP2024

Gliese 12 b, A Temperate Earth-sized Planet at 12 Parsecs Discovered with TESS and CHEOPS

Shishir Dholakia, Larissa Palethorpe, Alexander Venner +33

We report on the discovery of Gliese 12 b, the nearest transiting temperate, Earth-sized planet found to date. Gliese 12 is a bright ( mag, mag) metal-poor M4V star…

astro-ph.EP2024

The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M dwarfs

Y. Hori, A. Fukui, T. Hirano +100

Sub-Neptunes with are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes pr…

astro-ph.EP2024

Migration and Evolution of giant ExoPlanets (MEEP) I: Nine Newly Confirmed Hot Jupiters from the TESS Mission

Jack Schulte, Joseph E. Rodriguez, Allyson Bieryla +72

Hot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery, the mysteries surrounding their origins remain. Here, we present n…

astro-ph.SR2024

The POKEMON Speckle Survey of Nearby M Dwarfs. III. The Stellar Multiplicity Rate of M Dwarfs within 15 pc

Catherine A. Clark, Gerard T. van Belle, Elliott P. Horch +8

M dwarfs are ubiquitous in our galaxy, and the rate at which they host stellar companions, and the properties of these companions, provides a window into the formation and evolutio…

astro-ph.SR2023

High-Resolution Imaging of a TESS Control Sample: Verifying a Deficit of Close-In Stellar Companions to Exoplanet Host Stars

Colin Littlefield, Steve B. Howell, David R. Ciardi +6

The large number of exoplanets discovered with the Transiting Exoplanet Survey Satellite (TESS) means that any observational biases from TESS could influence the derived stellar mu…

astro-ph.EP2023

TOI-4641b: An Aligned Warm Jupiter Orbiting a Bright (V=7.5) Rapidly Rotating F-star

Allyson Bieryla, George Zhou, Juliana García-Mejía +25

We report the discovery of TOI-4641b, a warm Jupiter transiting a rapidly rotating F-type star with a stellar effective temperature of 6560 K. The planet has a radius of 0.73 $R_{J…

astro-ph.EP2023★ 12 cited

TOI-5344 b: A Saturn-like planet orbiting a super-Solar metallicity M0 dwarf

Te Han, Paul Robertson, Shubham Kanodia +19

We confirm the planetary nature of TOI-5344 b as a transiting giant exoplanet around an M0 dwarf star. TOI-5344 b was discovered with the Transiting Exoplanet Survey Satellite phot…

astro-ph.SR2023

The POKEMON Speckle Survey of Nearby M Dwarfs. II. Observations of 1125 Targets

Catherine A. Clark, Gerard T. van Belle, Elliott P. Horch +7

Stellar multiplicity is correlated with many stellar properties, yet multiplicity measurements have proven difficult for the M dwarfs -- the most common type of star in our galaxy…

astro-ph.EP2023

TOI-5126: A hot super-Neptune and warm Neptune pair discovered by and

Tyler R. Fairnington, Emma Nabbie, Chelsea X. Huang +33

We present the confirmation of a hot super-Neptune with an exterior Neptune companion orbiting a bright (V = 10.1 mag) F-dwarf identified by the $\textit{Transiting Exoplanet Surve…

astro-ph.SR2023

Visual Orbits & Alignments of Planet Hosting Binary Systems

Kathryn Lester, Steve Howell, Rachel Matson +7

Roughly half of Solar-type planet hosts have stellar companions, so understanding how these binary companions affect the formation and evolution of planets is an important componen…

astro-ph.SR2023★ 7 cited

TOI-5375 B: A Very Low Mass Star at the Hydrogen-Burning Limit Orbiting an Early M-type Star

Mika Lambert, Chad F. Bender, Shubham Kanodia +16

The TESS mission detected a companion orbiting TIC 71268730, categorized it as a planet candidate, and designated the system TOI-5375. Our follow-up analysis using radial velocity…

astro-ph.EP2023★ 26 cited

TOI-3984 A b and TOI-5293 A b: two temperate gas giants transiting mid-M dwarfs in wide binary systems

Caleb I. Cañas, Shubham Kanodia, Jessica Libby-Roberts +30

We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A () is an M4 dwarf hosting…

astro-ph.EP2023

An In-Depth Look at TOI-3884b: a Super-Neptune Transiting a M4 Dwarf with Persistent Star Spot Crossings

Jessica E. Libby-Roberts, Maria Schutte, Leslie Hebb +25

We perform an in-depth analysis of the recently validated TOI-3884 system, an M4 dwarf star with a transiting super-Neptune. Using high precision light curves obtained with the 3.5…

astro-ph.EP2022★ 38 cited

The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets

Samuel W. Yee, Joshua N. Winn, Joel D. Hartman +83

NASA's Transiting Exoplanet Survey Satellite (TESS) mission promises to improve our understanding of hot Jupiters by providing an all-sky, magnitude-limited sample of transiting ho…

astro-ph.EP2019★ 38 cited

KELT-25b and KELT-26b: A Hot Jupiter and a Substellar Companion Transiting Young A-stars Observed by TESS

Romy Rodríguez Martínez, B. Scott Gaudi, Joseph E. Rodriguez +89

We present the discoveries of KELT-25b (TIC 65412605, TOI-626.01) and KELT-26b (TIC 160708862, TOI-1337.01), two transiting companions orbiting relatively bright, early A-stars. Th…

astro-ph.SR2018★ 45 cited

The Kepler Follow-Up Observation Program. II. Stellar Parameters from Medium- and High-Resolution Spectroscopy

E. Furlan, D. R. Ciardi, W. D. Cochran +22

We present results from spectroscopic follow-up observations of stars identified in the Kepler field and carried out by teams of the Kepler Follow-Up Observation Program. Two sampl…