36 citations · 92 across the 12 of their papers we have counts for
13 papers
Detecting multiple planets in Gaia data using Bayesian model selection
Emmanuel J. Greenfield, James E. Owen
Gaia will soon provide a census of cold giant planets. However, an astrometric signal contains the superimposed reflex motion of all companions, so planetary signals cannot be trea…
The impact of internal versus external perturbations on close-in exoplanet architectures
Christina Schoettler, James E Owen
Young planetary systems are subjected to different dynamical effects that can influence their orbital structure over time. In systems with more than one planet, other planets can i…
ASASSN-24fw: Candidate circumplanetary disk occultation of a main-sequence star
Nadia L. Zakamska, Gautham Adamane Pallathadka, Dmitry Bizyaev +24
Dusty disks around planetary and substellar companions in outer reaches of exo-planetary systems can be detected as long-lasting occultations, provided the observer is close to the…
The Gradient of Mean Molecular Weight Across the Radius Valley
Kevin Heng, James E. Owen, Meng Tian
Photo-evaporation shapes the observed radii of small exoplanets and constrains the underlying distributions of atmospheric and core masses. However, the diversity of atmospheric ch…
The effect of dynamical interactions in stellar birth environments on the orbits of young close-in planetary systems
Christina Schoettler, James E. Owen
Stars do not form in isolation but together with other stars, and often in a clustered environment. Depending on the initial conditions in these environments, such as initial densi…
The metallicity and carbon-to-oxygen ratio of the ultra-hot Jupiter WASP-76b from Gemini-S/IGRINS
Megan Weiner Mansfield, Michael R. Line, Joost P. Wardenier +11
Measurements of the carbon-to-oxygen (C/O) ratios of exoplanet atmospheres can reveal details about their formation and evolution. Recently, high-resolution cross-correlation analy…
Blowin' in the non-isothermal wind: core-powered mass loss with hydrodynamic radiative transfer
William Misener, Matthäus Schulik, Hilke E. Schlichting +1
The mass loss rates of planets undergoing core-powered escape are usually modeled using an isothermal Parker-type wind at the equilibrium temperature, . However, the…
Introducing cuDisc: a 2D code for protoplanetary disc structure and evolution calculations
Alfie Robinson, Richard A. Booth, James E. Owen
We present a new 2D axisymmetric code, cuDisc, for studying protoplanetary discs, focusing on the self-consistent calculation of dust dynamics, grain size distribution and disc tem…
Shallower radius valley around low-mass hosts: Evidence for icy planets, collisions or high-energy radiation scatter
Cynthia S. K. Ho, James G. Rogers, Vincent Van Eylen +2
The radius valley, i.e., a dearth of planets with radii between 1.5 and 2 Earth radii, provides insights into planetary formation and evolution. Using homogenously revised planetar…
Under the light of a new star: evolution of planetary atmospheres through protoplanetary disc dispersal and boil-off
James G. Rogers, James E. Owen, Hilke E. Schlichting
The atmospheres of small, close-in exoplanets are vulnerable to rapid mass-loss during protoplanetary disc dispersal via a process referred to as `boil-off', in which confining pre…
Using Lyman- transits to constrain models of atmospheric escape
Ethan Schreyer, James. E. Owen, R. O. Parke Loyd +1
Lyman- transits provide an opportunity to test models of atmospheric escape directly. However, translating observations into constraints on the properties of the escaping atmosp…
A roadmap for the atmospheric characterization of terrestrial exoplanets with JWST
TRAPPIST-1 JWST Community Initiative, :, Julien de Wit +80
Ultra-cool dwarf stars are abundant, long-lived, and uniquely suited to enable the atmospheric study of transiting terrestrial companions with JWST. Amongst them, the most prominen…
Investigating the Atmospheric Mass Loss of the Kepler-105 Planets Straddling the Radius Gap
Aaron Householder, Lauren M. Weiss, James E. Owen +21
An intriguing pattern among exoplanets is the lack of detected planets between approximately R and R. One proposed explanation for this "radius gap" i…