From stars to diverse mantles, melts, crusts, and atmospheres of rocky exoplanets

CM Guimond, H Wang, F Seidler… - … in Mineralogy and …, 2024 - pubs.geoscienceworld.org
The advent of radial velocity (RV) and transit photometry method has resulted in the
detection of more than 5000 exoplanets since 1995. Of these detected planets, a significant …

Plausible constraints on the range of bulk terrestrial exoplanet compositions in the solar neighborhood

RJ Spaargaren, HS Wang, SJ Mojzsis… - The Astrophysical …, 2023 - iopscience.iop.org
Rocky planet compositions regulate planetary evolution by affecting core sizes, mantle
properties, and melting behaviors. Yet, quantitative treatments of this aspect of exoplanet …

MINDS. Hydrocarbons detected by JWST/MIRI in the inner disk of Sz28 consistent with a high C/O gas-phase chemistry

J Kanwar, I Kamp, H Jang, LBFM Waters… - Astronomy & …, 2024 - aanda.org
Context. With the advent of JWST, we are acquiring unprecedented insights into the physical
and chemical structure of the inner regions of planet-forming disks where terrestrial planet …

On the potential of silicon as a building block for life

JJ Petkowski, W Bains, S Seager - Life, 2020 - mdpi.com
Despite more than one hundred years of work on organosilicon chemistry, the basis for the
plausibility of silicon-based life has never been systematically addressed nor objectively …

Billion atom molecular dynamics simulations of carbon at extreme conditions and experimental time and length scales

K Nguyen-Cong, JT Willman, SG Moore… - Proceedings of the …, 2021 - dl.acm.org
Billion atom molecular dynamics (MD) using quantum-accurate machine-learning Spectral
Neighbor Analysis Potential (SNAP) observed long-sought high pressure BC8 phase of …

Detailed chemical compositions of planet-hosting stars–II. Exploration of the interiors of terrestrial-type exoplanets

HS Wang, SP Quanz, D Yong, F Liu… - Monthly Notices of …, 2022 - academic.oup.com
ABSTRACT A major goal in the discovery and characterization of exoplanets is to identify
terrestrial-type worlds that are similar to (or otherwise distinct from) our Earth. Recent results …

Contribution of the Moon-forming Impactor to the Volatile Inventory in the Bulk Silicate Earth

DS Grewal, Y Miyazaki, NX Nie - The Planetary Science Journal, 2024 - iopscience.iop.org
The timing and mechanism by which the present-day inventory of life-essential volatiles
hydrogen–carbon–nitrogen–sulfur (H–C–N–S) in the bulk silicate Earth (BSE) was …

Eta-Earth revisited II: Deriving a maximum number of Earth-like habitats in the Galactic Disk

M Scherf, H Lammer, L Spross - Astrobiology, 2024 - liebertpub.com
In Lammer et al.(2024), we defined Earth-like habitats (EHs) as rocky exoplanets within the
habitable zone of complex life (HZCL) on which Earth-like N2-O2-dominated atmospheres …

[HTML][HTML] A note on graphite hydrogenation as a source of abiotic methane on rocky planets: A case study for Mercury

CR Butkus, AO Warren, ES Kite, S Torres, S Naoz… - Icarus, 2023 - Elsevier
Methane is a promising gaseous biosignature on rocky exoplanets, given a suitable context.
Establishing the robustness of methane biosignatures on rocky exoplanets requires …

Experimental determination of mantle solidi and melt compositions for two likely rocky exoplanet compositions

K Brugman, MG Phillips, CB Till - Journal of Geophysical …, 2021 - Wiley Online Library
For rocky exoplanets, knowledge of their geologic characteristics such as composition and
mineralogy, surface recycling mechanisms, and volcanic behavior are key to determining …