activity
20202026
most citedThe Warm Neptune GJ 3470b has a Polar Orbit

86 citations · 572 across the 53 of their papers we have counts for

collaborators

58 papers

astro-ph.EP2026

Worlds Next Door. V. A Candidate Solar System Scale Super-Jupiter in the 61 Cygni Binary System

Aniket Sanghi, Billy Quarles, Andrea S. J. Lin +16

We present new constraints on a candidate third companion in the 61 Cygni binary system-one of the closest neighbors to our solar system (3.5 pc), the first stars to have a measure…

astro-ph.EP2026

The NEID Earth Twin Survey. VI. Discovery of a Low-Mass Planet Orbiting HD 126053 and RV Signals Near the Rotation Periods of HD 168009 and HD 10780

Arvind F. Gupta, Sarah E. Logsdon, Jacob K. Luhn +19

Extreme precision radial velocity (EPRV) spectrographs are making strides in extending the limits of radial velocity exoplanet detection. Perhaps the best evidence for this is how…

astro-ph.IM2026

Investigating the differential limb coupling effect for diffraction-limited spectrographs with PARVI

Andrea S. J. Lin, Ashley D. Baker, Samuel Halverson +5

A promising new architecture for extreme-precision radial velocity (EPRV) spectrographs, hunting for small-amplitude stellar Doppler shifts induced by orbiting planets, is to build…

astro-ph.EP2026

Searching for GEMS: Three warm Saturns and a super-Jupiter orbiting four early M-dwarfs

Pranav H. Premnath, Paul Robertson, Shubham Kanodia +33

We report the confirmation and characterization of four transiting giant planets orbiting early-M dwarfs discovered by the Searching for Giant Exoplanets around M-dwarf Stars (GEMS…

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

Searching for GEMS: TOI-5349b is a Saturn-like planet orbiting a metal-rich early M-dwarf

Angeli Sandoval, Caleb I. Cañas, Shubham Kanodia +27

We report the confirmation and analysis of TOI-5349b, a transiting, warm, Saturn-like planet orbiting an early M-dwarf with a period of 3.3 days, which we confirmed as part o…

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

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★ 7 cited

The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems

Mark R. Giovinazzi, Cullen H. Blake, Paul Robertson +26

We present a set of companion dynamical masses and orbital parameters of seven star systems from the NEID Earth Twin Survey with significant absolute astrometric accelerations betw…

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.EP2025★ 6 cited

GEMS JWST: Transmission spectroscopy of TOI-5205b reveals significant stellar contamination and a metal-poor atmosphere

Caleb I. Cañas, Jacob Lustig-Yaeger, Shang-Min Tsai +21

Recent discoveries of transiting giant exoplanets () around M dwarfs (GEMS) present an opportunity to investigate their atmospheric compositions and…

astro-ph.EP2025

Searching for GEMS: Discovery and Characterization of Two Brown Dwarfs Around M Dwarfs

Alexander Larsen, Tera N. Swaby, Henry A. Kobulnicky +17

Brown dwarfs bridge the gap between stars and planets, providing valuable insight into both planetary and stellar formation mechanisms. Yet the census of transiting brown dwarf com…

astro-ph.EP2024

Jitter Across 15 Years: Leveraging Precise Photometry from Kepler and TESS to Extract Exoplanets from Radial Velocity Time Series

Corey Beard, Paul Robertson, Jack Lubin +24

Stellar activity contamination of radial velocity (RV) data is one of the top challenges plaguing the field of extreme precision RV (EPRV) science. Previous work has shown that pho…

astro-ph.EP2024

Searching for GEMS: Two Super-Jupiters around M-dwarfs -- Signatures of Instability or Accretion?

Andrew Hotnisky, Shubham Kanodia, Jessica Libby-Roberts +20

We present the discovery of TOI-6303b and TOI-6330b, two massive transiting super-Jupiters orbiting a M0 and a M2 star respectively, as part of the Searching for GEMS survey. These…

astro-ph.EP2024★ 10 cited

The First Spin-Orbit Obliquity of an M dwarf/brown dwarf System: An eccentric and aligned TOI-2119 b

Lauren Doyle, Caleb I. Cañas, Jessica E. Libby-Roberts +15

We report the first instance of an M dwarf/brown dwarf obliquity measurement for the TOI-2119 system using the Rossiter-McLaughlin effect. TOI-2119 b is a transiting brown dwarf or…

astro-ph.EP2024

A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

Kento Masuda, Jessica E. Libby-Roberts, John H. Livingston +49

Kepler-51 is a -old Sun-like star hosting three transiting planets with radii - and orbital periods -$130\,\mathrm{day…

astro-ph.EP2024

Searching for GEMS: TOI-6383Ab, a giant planet transiting an M3-dwarf star in a binary system

Lia Marta Bernabò, Shubham Kanodia, Caleb I. Canas +22

We report on the discovery of a transiting giant planet around the 3500 K M3-dwarf star TOI-6383A located 172 pc from Earth. It was detected by the Transiting Exoplanet Survey Sate…

astro-ph.EP2024

The NEID Earth Twin Survey. I. Confirmation of a 31-day planet orbiting HD 86728

Arvind F. Gupta, Jacob K. Luhn, Jason T. Wright +21

With close to three years of observations in hand, the NEID Earth Twin Survey (NETS) is starting to unearth new astrophysical signals for a curated sample of bright, radial velocit…

astro-ph.EP2024

Searching for GEMS: TOI-5688 A b, a low-density giant orbiting a high-metallicity early M-dwarf

Varghese Reji, Shubham Kanodia, Joe Ninan +31

We present the discovery of a low-density planet orbiting the high-metallicity early M-dwarf TOI-5688 A b. This planet was characterized as part of the search for transiting giant…

astro-ph.EP2024

Searching for GEMS: Characterizing Six Giant Planets around Cool Dwarfs

Shubham Kanodia, Arvind F. Gupta, Caleb I. Canas +42

Transiting giant exoplanets around M-dwarf stars (GEMS) are rare, owing to the low-mass host stars. However, the all-sky coverage of TESS has enabled the detection of an increasing…

astro-ph.SR2024

Earths within Reach: Evaluation of Strategies for Mitigating Solar Variability using 3.5 years of NEID Sun-as-a-Star Observations

Eric B. Ford, Chad F. Bender, Cullen H. Blake +15

We present the results of Sun-as-a-star observations by the NEID Solar Telescope at WIYN Observatory, spanning January 1, 2021 through June 30, 2024. We identify 117,060 observatio…

astro-ph.EP2024

Utilizing Photometry from Multiple Sources to Mitigate Stellar Variability in Precise Radial Velocities: A Case Study of Kepler-21

Corey Beard, Paul Robertson, Mark R. Giovinazzi +26

We present a new analysis of Kepler-21, the brightest (V = 8.5) Kepler system with a known transiting exoplanet, Kepler-21 b. Kepler-21 b is a radius valley planet ($R = 1.6\pm 0.2…