27 citations · 49 across the 9 of their papers we have counts for
11 papers
Variable X-ray flux may explain variable helium escape from the habitable-zone exoplanet LHS 1140b
Collin Cherubim, Tim Cunningham, Jason A. Dittmann
A central goal in exoplanet science is to understand the conditions under which potentially habitable worlds retain atmospheres. This question is of special interest for worlds orb…
WINERED Detects a Strong Atmospheric Outflow on the Sub-Neptune GJ 3090b
Shreyas Vissapragada, Zifan Lin, Annabella Meech +12
Sub-Neptunes are the most common short-period ( d) planets known. A major goal for the field is to build a comprehensive understanding of their compositions and evolutionary…
Helium escaping from the atmosphere of a nearby rocky exoplanet orbiting in a habitable zone
Collin Cherubim, Shreyas Vissapragada, Tim Cunningham +13
Observations of highly irradiated gas giant exoplanets have shown helium escaping from their atmospheres. There is limited evidence for atmospheres on rocky exoplanets, perhaps bec…
Climates of temperate rocky planets with He-dominated atmospheres
Viviane Kuss, Robin Wordsworth, Collin Cherubim +1
We present radiative-convective modeling of rocky exoplanets with -dominated atmospheres and low envelope mass fractions. Helium has a steeper adiabatic temperature profile tha…
Applied Astrobiology: An Integrated Approach to the Future of Life in Space
Robin Wordsworth, Collin Cherubim, Shannon Nangle +13
Searching for extraterrestrial life and supporting human life in space are traditionally regarded as separate challenges. However, there are significant benefits to an approach tha…
An Oxidation Gradient Straddling the Small Planet Radius Valley
Collin Cherubim, Robin Wordsworth, Dan Bower +3
We present a population-level view of volatile gas species (H, He, HO, O, CO, CO, CH) distribution during the sub-Neptune to rocky planet transition, revealing…
Strong fractionation of deuterium and helium in sub-Neptune atmospheres along the radius valley
Collin Cherubim, Robin Wordsworth, Renyu Hu +1
We simulate atmospheric fractionation in escaping planetary atmospheres using IsoFATE, a new open-source numerical model. We expand the parameter space studied previously to planet…
Masses, Revised Radii, and a Third Planet Candidate in the "Inverted" Planetary System Around TOI-1266
Ryan Cloutier, Michael Greklek-McKeon, Serena Wurmser +40
Is the population of close-in planets orbiting M dwarfs sculpted by thermally driven escape or is it a direct outcome of the planet formation process? A number of recent empirical…
New Mass and Radius Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World
Charles Cadieux, Mykhaylo Plotnykov, René Doyon +43
The two-planet transiting system LHS 1140 has been extensively observed since its discovery in 2017, notably with , HST, TESS, and ESPRESSO, placing strong constraints on…
TOI-1695 b: A Water World Orbiting an Early M Dwarf in the Planet Radius Valley
Collin Cherubim, Ryan Cloutier, David Charbonneau +38
Characterizing the bulk compositions of transiting exoplanets within the M dwarf radius valley offers a unique means to establish whether the radius valley emerges from an atmosphe…
Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. II. Discovery of a Failed Hot Jupiter on a 2.7 Year, Highly Eccentric Orbit
Paul A. Dalba, Stephen R. Kane, Zhexing Li +13
Radial velocity (RV) surveys have discovered giant exoplanets on au-scale orbits with a broad distribution of eccentricities. Those with the most eccentric orbits are valuable labo…