30 citations · 146 across the 17 of their papers we have counts for
18 papers
What the Solar System Can Teach Us About Rocky Exoplanets
Paul K. Byrne, Claire Marie Guimond, Peter A. Cawood +9
The number of rocky extrasolar planets being discovered continues to increase, but so too does the apparent diversity of such worlds. As we work to understand the likely bulk prope…
The Barnard's Star Planetary System: Stability, Composition, and Evolution of Four Sub-Earth Exoplanets
Xander Byrne, Claire Marie Guimond, Amy Bonsor +3
Barnard's Star is the nearest single star to the Sun (1.8 pc), and hosts four recently-discovered planets. The star also has well-characterized stellar abundances of important rock…
Mantle Convection and Nightside Volcanism on Lava World K2-141 b
Tobias G. Meier, Claire Marie Guimond, Raymond T. Pierrehumbert +13
Ultra-short period lava worlds offer a unique window into the coupled evolution of planetary interior and atmospheres under extreme irradiation. In this study, we investigate the m…
Transformational astrophysics and exoplanet science with Habitable Worlds Observatory's High Resolution Imager
Vincent Van Eylen, Richard Massey, Saeeda Awan +167
Habitable Worlds Observatory (HWO) will be NASA's flagship space telescope of the 2040s, designed to search for life on other planets and to transform broad areas of astrophysics.…
Water versus land on temperate rocky planets
Claire Marie Guimond, Tilman Spohn, Svetlana Berdyugina +6
Water and land surfaces on a planet interact with gases in the atmosphere and with radiation from the star. These interactions define the environments that prevail on the planet, s…
Most Rocky Sub-Neptunes are Molten: Mapping the Solidification Shoreline for Gas Dwarf Exoplanets
Robb Calder, Oliver Shorttle, Harrison Nicholls +2
Sub-Neptunes are the most common type of detected exoplanet, yet their observed masses and radii are degenerate with several interior structures. One possibility is that sub-Neptun…
Fundamentals of interior modelling and challenges in the interpretation of observed rocky exoplanets
Philipp Baumeister, Francesca Miozzi, Claire Marie Guimond +7
Most our knowledge about rocky exoplanets is based on their measure of mass and radius. These two parameters are routinely measured and are used to categorise different populations…
Volatile-rich evolution of molten super-Earth L 98-59 d
Harrison Nicholls, Tim Lichtenberg, Richard D. Chatterjee +3
Small low-density exoplanets are sculpted by strong stellar irradiation, but their primordial compositions and subsequent evolution are still unknown. Two often-considered scenario…
Self-limited tidal heating and prolonged magma oceans in the L 98-59 system
Harrison Nicholls, Claire Marie Guimond, Hamish C. F. C. Hay +3
Rocky exoplanets accessible to characterisation often lie on close-in orbits where tidal heating within their interiors is significant, with the L 98-59 planetary system being a pr…
Exploring the conditions conducive to convection within the Greenland Ice Sheet
Robert Law, Andreas Born, Philipp Voigt +2
Large plume-like features within the Greenland Ice Sheet disrupt radiostratigraphy and complicate the use of isochrones in reconstructions of past ice dynamics. Here we use numeric…
Reliable Detections of Atmospheres on Rocky Exoplanets with Photometric JWST Phase Curves
Mark Hammond, Claire Marie Guimond, Tim Lichtenberg +9
The prevalence of atmospheres on rocky planets is one of the major questions in exoplanet astronomy, but there are currently no published unambiguous detections of atmospheres on a…
From stars to diverse mantles, melts, crusts and atmospheres of rocky exoplanets
Claire Marie Guimond, Haiyang Wang, Fabian Seidler +3
This review is focused on describing the logic by which we make predictions of exoplanetary compositions and mineralogies, and how these processes could lead to compositional diver…
A mineralogical reason why all exoplanets cannot be equally oxidising
Claire Marie Guimond, Oliver Shorttle, Sean Jordan +1
From core to atmosphere, the oxidation states of elements in a planet shape its character. Oxygen fugacity (fO) is one parameter indicating these likely oxidation states. The o…
Mantle mineralogy limits to rocky planet water inventories
Claire Marie Guimond, Oliver Shorttle, John F. Rudge
Nominally anhydrous minerals in rocky planet mantles can sequester oceans of water as a whole, giving a constraint on bulk water inventories. Here we predict mantle water capacitie…
Blue marble, stagnant lid: Could dynamic topography avert a waterworld?
Claire Marie Guimond, John Rudge, Oliver Shorttle
Topography on a wet rocky exoplanet could raise land above its sea level. Although land elevation is the product of many complex processes, the large-scale topographic features on…
Low volcanic outgassing rates for a stagnant lid Archean Earth with graphite-saturated magmas
Claire Marie Guimond, Lena Noack, Gianluigi Ortenzi +1
Volcanic gases supplied a large part of Earth's early atmosphere, but constraints on their flux are scarce. Here we model how C-O-H outgassing could have evolved through the late H…
Three direct imaging epochs could constrain the orbit of Earth 2.0 inside the habitable zone
Claire Marie Guimond, Nicolas B. Cowan
Space-based direct imaging missions (HabEx, LUVOIR) would observe reflected light from exoplanets in the habitable zones of Sun-like stars. The ultimate---but not sole---goal of th…
The direct imaging search for Earth 2.0: Quantifying biases and planetary false positives
Claire Marie Guimond, Nicolas B. Cowan
Direct imaging is likely the best way to characterize the atmospheres of Earth-sized exoplanets in the habitable zone of Sun-like stars. Previously, Stark et al. (2014, 2015, 2016)…