97 citations · 264 across the 5 of their papers we have counts for
6 papers
Bayesian constraints on the origin and geology of exo-planetary material using a population of externally polluted white dwarfs
John H. D. Harrison, Amy Bonsor, Mihkel Kama +3
White dwarfs that have accreted planetary bodies are a powerful probe of the bulk composition of exoplanetary material. In this paper, we present a Bayesian model to explain the ab…
Evidence for post-nebula volatilisation in an exo-planetary body
John H. D. Harrison, Oliver Shorttle, Amy Bonsor
The loss and gain of volatile elements during planet formation is key for setting their subsequent climate, geodynamics, and habitability. Two broad regimes of volatile element tra…
Exocomets from a Solar System Perspective
Paul A. Strøm, Dennis Bodewits, Matthew M. Knight +24
Exocomets are small bodies releasing gas and dust which orbit stars other than the Sun. Their existence was first inferred from the detection of variable absorption features in ste…
Are exoplanetesimals differentiated?
Amy Bonsor, Philip J. Carter, Mark Hollands +3
Metals observed in the atmospheres of white dwarfs suggest that many have recently accreted planetary bodies. In some cases, the compositions observed suggest the accretion of mate…
A new class of Super-Earths formed from high-temperature condensates: HD219134 b, 55 Cnc e, WASP-47 e
Caroline Dorn, John H. D. Harrison, Amy Bonsor +1
We hypothesise that differences in the temperatures at which the rocky material condensed out of the nebula gas can lead to differences in the composition of key rocky species (e.g…
Polluted White Dwarfs: Constraints on the Origin and Geology of Exoplanetary Material
John H. D. Harrison, Amy Bonsor, Nikku Madhusudhan
White dwarfs that have accreted rocky planetary bodies provide unique insights regarding the bulk composition of exoplanetary material. The analysis presented here uses observed wh…