1k citations · 3.3k across the 44 of their papers we have counts for
14 papers · 1 filter
An unlikely survivor: a low-density hot Neptune orbiting a red giant star
Samuel Grunblatt, Nicholas Saunders, Daniel Huber +14
Hot Neptunes, gaseous planets smaller than Saturn ( 3-8 R) with orbital periods less than 10 days, are rare. Models predict this is due to high-energy stellar irradi…
Detecting Solar System Analogs through Joint Radial Velocity/Astrometric Surveys
Daniel A. Yahalomi, Ruth Angus, David N. Spergel +1
Earth-mass exoplanets on year-long orbits and cool gas giants (CGG) on decade-long orbits lie at the edge of current detection limits. The Terra Hunting Experiment (THE) will take…
Evidence for the volatile-rich composition of a 1.5- planet
Caroline Piaulet, Björn Benneke, Jose M. Almenara +18
The population of planets smaller than approximately is widely interpreted as consisting of rocky worlds, generally referred to as super-Earths. This picture is larg…
TESS Giants Transiting Giants III: An eccentric warm Jupiter supports a period-eccentricity relation for giant planets transiting evolved stars
Samuel K. Grunblatt, Nicholas Saunders, Ashley Chontos +27
The fate of planets around rapidly evolving stars is not well understood. Previous studies have suggested that relative to the main sequence population, planets transiting evolved…
TESS Giants Transiting Giants II: The hottest Jupiters orbiting evolved stars
Samuel K. Grunblatt, Nicholas Saunders, Meng Sun +42
Giant planets on short-period orbits are predicted to be inflated and eventually engulfed by their host stars. However, the detailed timescales and stages of these processes are no…
Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant
Nicholas Saunders, Samuel K. Grunblatt, Daniel Huber +27
While the population of confirmed exoplanets continues to grow, the sample of confirmed transiting planets around evolved stars is still limited. We present the discovery and confi…
A decade of radial-velocity monitoring of Vega and new limits on the presence of planets
Spencer A. Hurt, Samuel N. Quinn, David W. Latham +7
We present an analysis of 1524 spectra of Vega spanning 10 years, in which we search for periodic radial velocity variations. A signal with a periodicity of 0.676 days and a semi-a…
TOI-1259Ab -- a gas giant planet with 2.7% deep transits and a bound white dwarf companion
David V. Martin, Kareem El-Badry, Vedad Kunovac Hodžić +33
We present TOI-1259Ab, a 1.0 Rjup gas giant planet transiting a 0.71 Rsun K-dwarf on a 3.48 day orbit. The system also contains a bound white dwarf companion TOI-1259B with a proje…
WASP-107b's density is even lower: a case study for the physics of planetary gas envelope accretion and orbital migration
Caroline Piaulet, Björn Benneke, Ryan A. Rubenzahl +21
With a mass in the Neptune regime and a radius of Jupiter, WASP-107b presents a challenge to planet formation theories. Meanwhile, the planet's low surface gravity and the star's b…
Evolution of the Exoplanet Size Distribution: Forming Large Super-Earths Over Billions of Years
Trevor J. David, Gabriella Contardo, Angeli Sandoval +9
The radius valley, a bifurcation in the size distribution of small, close-in exoplanets, is hypothesized to be a signature of planetary atmospheric loss. Such an evolutionary pheno…
Loose Ends for the Exomoon Candidate Host Kepler-1625b
Alex Teachey, David Kipping, Christopher J. Burke +2
The claim of an exomoon candidate in the Kepler-1625b system has generated substantial discussion regarding possible alternative explanations for the purported signal. In this work…
A disintegrating minor planet transiting a white dwarf
Andrew Vanderburg, John Asher Johnson, Saul Rappaport +16
White dwarfs are the end state of most stars, including the Sun, after they exhaust their nuclear fuel. Between 1/4 and 1/2 of white dwarfs have elements heavier than helium in the…
Calibrating Gyrochronology using Kepler Asteroseismic targets
Ruth Angus, Suzanne Aigrain, Daniel Foreman-Mackey +1
Among the available methods for dating stars, gyrochronology is a powerful one because it requires knowledge of only the star's mass and rotation period. Gyrochronology relations h…
Characterizing K2 Planet Discoveries: A super-Earth transiting the bright K-dwarf HIP 116454
Andrew Vanderburg, Benjamin T. Montet, John Asher Johnson +43
We report the first planet discovery from the two-wheeled Kepler (K2) mission: HIP 116454 b. The host star HIP 116454 is a bright (V = 10.1, K = 8.0) K1-dwarf with high proper moti…