Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Shorttle, Oliver"'
Autor:
Buchan, Andrew M., Bonsor, Amy, Rogers, Laura K., Brouwers, Marc G., Shorttle, Oliver, Tremblay, Pier-Emmanuel
White dwarf atmospheres are frequently polluted by material from their own planetary systems. Absorption features from Ca, Mg, Fe and other elements can provide unique insights into the provenance of this exoplanetary material, with their relative ab
Externí odkaz:
http://arxiv.org/abs/2406.18486
Autor:
Guimond, Claire Marie, Wang, Haiyang, Seidler, Fabian, Sossi, Paolo, Mahajan, Aprajit, Shorttle, Oliver
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 diversity among rocky exoplanets. We use these predictions to determine the
Externí odkaz:
http://arxiv.org/abs/2404.15427
Autor:
Rimmer, Paul B., Shorttle, Oliver
Giant impacts can generate transient hydrogen-rich atmospheres, reducing atmospheric carbon. The reduced carbon will form hazes that rain out onto the surface and can become incorporated into the crust. Once heated, a large fraction of the carbon wou
Externí odkaz:
http://arxiv.org/abs/2403.15135
Autor:
Walton, Craig R., Rigley, Jessica K., Lipp, Alexander, Law, Robert, Suttle, Martin D., Schonbachler, Maria, Wyatt, Mark, Shorttle, Oliver
Publikováno v:
Earth. Nat Astron (2024)
Earth's surface is deficient in available forms of many elements considered limiting for prebiotic chemistry. In contrast, many extraterrestrial rocky objects are rich in these same elements. Limiting prebiotic ingredients may, therefore, have been d
Externí odkaz:
http://arxiv.org/abs/2402.12310
Publikováno v:
vol: 962, year: 2024, pages: L8
Mildly irradiated mini-Neptunes have densities potentially consistent with them hosting substantial liquid water oceans (`Hycean' planets). The presence of CO2 and simultaneous absence of ammonia (NH3) in their atmospheres has been proposed as a fing
Externí odkaz:
http://arxiv.org/abs/2401.05864
Autor:
Keyte, Luke, Kama, Mihkel, Chuang, Ko-Ju, Cleeves, L. Ilsedore, Drozdovskaya, Maria N., Furuya, Kenji, Rawlings, Jonathan, Shorttle, Oliver
Volatile elements play a crucial role in the formation of planetary systems. Their abundance and distribution in protoplanetary disks provide vital insights into the connection between formation processes and the atmospheric composition of individual
Externí odkaz:
http://arxiv.org/abs/2312.13997
Autor:
Itcovitz, Jonathan P., Rae, Auriol S. P., Davison, Thomas M., Collins, Gareth S., Shorttle, Oliver
Large impacts onto young rocky planets may transform their compositions, creating highly reducing conditions at their surfaces and reintroducing highly siderophile metals to their mantles. Key to these processes is the availability of an impactor's c
Externí odkaz:
http://arxiv.org/abs/2312.12132
As the characterization of exoplanet atmospheres proceeds, providing insights into atmospheric chemistry and composition, a key question is how much deeper into the planet we might be able to see from its atmospheric properties alone. For small plane
Externí odkaz:
http://arxiv.org/abs/2312.11133
Autor:
Walton, Craig R., Shorttle, Oliver
Understanding the co-evolution of complex life with Earth's geology is an enduring challenge. The rock record evidences remarkable correlations between changes in biology and the wider Earth system, yet cause and effect remain unclear. Here, we link
Externí odkaz:
http://arxiv.org/abs/2312.09011
White dwarfs that have accreted planetary materials provide a powerful tool to probe the interiors and formation of exoplanets. In particular, the high Fe/Si ratio of some white dwarf pollutants suggests that they are fragments of bodies that were he
Externí odkaz:
http://arxiv.org/abs/2310.17057