212 citations · 1.9k across the 59 of their papers we have counts for
7 papers · 1 filter
Rapid Formation of Exoplanetesimals Revealed by White Dwarfs
A. Bonsor, T. Lichtenberg, J. Drazkowska +1
The timing of formation for the first planetesimals determines the mode of planetary accretion and their geophysical and compositional evolution. Astronomical observations of circu…
Community Report from the Biosignatures Standards of Evidence Workshop
Victoria Meadows, Heather Graham, Victor Abrahamsson +72
The search for life beyond the Earth is the overarching goal of the NASA Astrobiology Program, and it underpins the science of missions that explore the environments of Solar Syste…
CO ocean bistability on terrestrial exoplanets
R. J. Graham, Tim Lichtenberg, Ray Pierrehumbert
Cycling of carbon dioxide between the atmosphere and interior of rocky planets can stabilize global climate and enable planetary surface temperatures above freezing over geologic t…
Reduced late bombardment on rocky exoplanets around M-dwarfs
Tim Lichtenberg, Matthew S. Clement
Ocean-vaporizing impacts of chemically reduced planetesimals onto the early Earth have been suggested to catalyse atmospheric production of reduced nitrogen compounds and trigger p…
Prevalence of short-lived radioactive isotopes across exoplanetary systems inferred from polluted white dwarfs
Alfred Curry, Amy Bonsor, Tim Lichtenberg +1
In the Solar System short-lived radioisotopes, such as 26Al, played a crucial role during the formation planetary bodies by providing a significant additional source of heat. Notab…
Geophysical Evolution During Rocky Planet Formation
Tim Lichtenberg, Laura K. Schaefer, Miki Nakajima +1
Progressive astronomical characterization of planet-forming disks and rocky exoplanets highlight the need for increasing interdisciplinary efforts to understand the birth and life…