activity
20182026
most citedClose companions around young stars

122 citations · 468 across the 35 of their papers we have counts for

collaborators
Showing 2025Show all

14 papers · 1 filter

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

Order-by-order Modeling of Exoplanet Radial Velocity Data

Zachary Langford, Cullen Blake, Samuel Halverson +12

Precise radial velocity (RV) measurements are a crucial tool for exoplanet discovery and characterization. Today, the majority of these measurements are derived from Echelle spectr…

astro-ph.EP2025★ 2 cited

Discovery of a Nearby Habitable Zone Super-Earth Candidate Amenable to Direct Imaging

Corey Beard, Paul Robertson, Jack Lubin +31

We present the discovery of GJ 251 c, a candidate super-Earth orbiting in the Habitable Zone (HZ) of its M dwarf host star. Using high-precision Habitable-zone Planet Finder (HPF)…

astro-ph.EP2025

Searching for GEMS: TOI-5916 b & TOI-6158 b are two Saturn-density planets orbiting M2 dwarfs

Shane O'Brien, Amber Wong, Te Han +20

We confirm the planetary nature of (1) TOI-5916 b and (2) TOI-6158 b, two Exoplanets Transiting M-dwarf Stars (GEMS), both discovered by the Transiting Exoplanet Survey Satellite (…

astro-ph.EP2025★ 1 cited

Searching for GEMS: The Occurrence of Giant Planets orbiting M-dwarfs within 100 pc

Rowen I. Glusman, Caleb I. Cañas, Shubham Kanodia +30

We present results from a systematic search for transiting short-period Giant Exoplanets around M-dwarf Stars (GEMS; days, ) within a distance-limi…

astro-ph.EP2025

HET/HPF observations of Helium in warm, hot, and ultra-hot Jupiters

Jaume Orell-Miquel, Kyra Sampson, Caroline V. Morley +5

The near-infrared helium triplet line is a powerful tool for studying atmospheric escape processes of close-in exoplanets, especially irradiated gas giants. Line profile fitting pr…

astro-ph.EP2025

The NEID Earth Twin Survey. IV. Confirming an 89 d, Planet Orbiting a Nearby Sun-like Star

Mark R. Giovinazzi, Evan Fitzmaurice, Arvind F. Gupta +19

We present the confirmation of HD 190360 d, a warm (), low-mass () planet orbiting the nearb…

astro-ph.EP2025

Searching for GEMS: TOI-7149~b an Inflated Giant Planet causing a 12% Transit of a Fully Convective M-dwarf

Shubham Kanodia, Caleb I. Cañas, Suvrath Mahadevan +20

We describe the discovery and characterization of TOI-7149~b, a 0.705 0.075 , 1.18 0.045 gas giant on a day period orbit transiting an M4V star w…

astro-ph.EP2025★ 2 cited

An Earth-Sized Planet in a 5.4h Orbit Around a Nearby K dwarf

Kaya Han Taş, Gudmundur Stefansson, Syarief N. M. Fariz +25

We present the discovery and confirmation of the ultra-short period (USP) planet TOI-2431 b orbiting a nearby ( pc) late K star ( = $4109 \pm 28 \, {\rm…

astro-ph.EP2025★ 1 cited

TOI-1259Ab: A Warm Jupiter Orbiting a K-dwarf White-Dwarf Binary is on a Well-aligned Orbit

Hugo Veldhuis, Juan I. Espinoza-Retamal, Gudmundur Stefansson +21

The evolution of one member of a stellar binary into a white dwarf has been proposed as a mechanism that triggers the formation of close-in gas giant planets. The star's asymmetric…

astro-ph.EP2025

The NEID Earth Twin Survey. III. Survey Performance After Three Years on Sky

Arvind F. Gupta, Evan Fitzmaurice, Suvrath Mahadevan +22

The NEID Earth Twin Survey (NETS) has been delivering a rich set of precise radial velocity (RV) measurements for 41 bright, nearby main sequence stars. Here, we describe the statu…

astro-ph.EP2025

Searching for GEMS: Confirmation of TOI-5573b, a Cool, Saturn-like Planet Orbiting An M-dwarf

Rachel B Fernandes, Shubham Kanodia, Megan Delamer +35

We present the confirmation of TOI-5573b, a Saturn-sized exoplanet on an 8.79-day orbit around an early M-dwarf (3790 K, 0.59 R, 0.61 M, 12.30 J mag). TOI-5573b has a…

astro-ph.SR2025

NEIDSpecMatch: stellar parameter estimation with NEID spectra using an empirical library

Te Han, Paul Robertson, Caleb I. Cañas +16

We introduce NEIDSpecMatch, a tool developed to extract stellar parameters from spectra obtained with the NEID spectrograph. NEIDSpecMatch is based on SpecMatch-Emp and HPFSpecMatc…

astro-ph.SR2025

Multi-Observatory Study of Young Stellar Energetic Flares (MORYSEF): No Evidence For Abnormally Strong Stellar Magnetic Fields After Powerful X-ray Flares

Konstantin V. Getman, Oleg Kochukhov, Joe P. Ninan +9

We explore the empirical power-law relationship between X-ray luminosity (Lx) and total surface magnetic flux (Phi), established across solar magnetic elements, time- and disk-aver…