11 citations · 25 across the 8 of their papers we have counts for
8 papers
Evidence for LP 890-9d via Transit Timing Variations
Kevin B. Stevenson, Guangwei Fu, Kristin S. Sotzen +10
LP 890-9, also known as SPECULOOS-2 and TOI-4306, is a nearby late-M dwarf hosting two confirmed transiting rocky exoplanets. We analyze 20 JWST/NIRSpec PRISM transits of LP 890-9b…
Accretion Rate Changes Detected in a Polluted White Dwarf
Jay Farihi, Hiba Tu Noor, Carl Melis +6
This letter reports statistically significant changes in the equivalent widths of MgII and CaII lines in the dusty and polluted white dwarf WD 0106-328, based on six epochs of spec…
A New Strategy for Using Spectroscopic Phase Curves to Characterize Non-Transiting Planets
Ted M. Johnson, Avi M. Mandell
We introduce a new time-series analysis strategy for combined-light exoplanet spectroscopic phase curves called the Variable Planetary Infrared Excess (VPIE) method. VPIE can be us…
The fraction of polar aligned circumbinary disks
Ted M. Johnson, Rebecca G. Martin, Stephen Lepp +1
Circumbinary gas disks that are misaligned to the binary orbital plane evolve toward either a coplanar or a polar-aligned configuration with respect to the binary host. The preferr…
The climates and thermal emission spectra of prime nearby temperate rocky exoplanet targets
Tobi Hammond, Thaddeus D. Komacek, Ravi K. Kopparapu +9
Over the course of the past decade, advances in the radial velocity and transit techniques have enabled the detection of rocky exoplanets in the habitable zones of nearby stars. Fu…
Asymmetric Temperature Variations In Protoplanetary disks: I. Linear Theory, Corotating Spirals, and Ring Formation
Zhaohuan Zhu, Shangjia Zhang, Ted Johnson
Protoplanetary disks can exhibit asymmetric temperature variations due to phenomena such as shadows cast by the inner disk or localized heating by young planets. We investigate the…
The pale blue dot: using the Planetary Spectrum Generator to simulate signals from hyper realistic exo-Earths
Vincent Kofman, Geronimo Villanueva, Thomas Fauchez +5
The atmospheres and surfaces of planets show tremendous amount of spatial variation, which has a direct effect on the spectrum of the object, even if this may not be spatially reso…
The VSPEC Collection: A suite of utilities to model spectroscopic phase curves of 3D exoplanet atmospheres in the presence of stellar variability
Ted M Johnson, Cameron Kelahan, Avi M. Mandell +5
We present the Variable Star PhasE Curve (VSPEC) Collection, a set of Python packages for simulating combined-light spectroscopic observations of 3-dimensional exoplanet atmosphere…