Deuterium-enriched water ties planet-forming disks to comets and protostars

JJ Tobin, MLR van't Hoff, M Leemker, EF van Dishoeck… - Nature, 2023 - nature.com
Water is a fundamental molecule in the star and planet formation process, essential for
catalysing the growth of solid material and the formation of planetesimals within disks …

Water in Fullerenes

Y Hashikawa, Y Murata - Bulletin of the Chemical Society of …, 2023 - academic.oup.com
A water molecule fixed within [60] fullerene is the simplest form of water available in
meatspace. It was first artificially made by us in 2011. Since then, anomalies of water …

Bottlenecks to interstellar sulfur chemistry-Sulfur-bearing hydrides in UV-illuminated gas and grains

JR Goicoechea, A Aguado, S Cuadrado… - Astronomy & …, 2021 - aanda.org
Hydride molecules lie at the base of interstellar chemistry, but the synthesis of sulfuretted
hydrides is poorly understood and their abundances often crudely constrained. Motivated by …

Activity and composition of the hyperactive comet 46P/Wirtanen during its close approach in 2018

Y Moulane, E Jehin, J Manfroid, D Hutsemékers… - Astronomy & …, 2023 - aanda.org
Context. Hyperactive comets are a small group of comets whose activity is higher than
expected. They seem to emit more water than would normally be expected given the size of …

First detection of gas-phase ammonia in a planet-forming disk-NH3, N2H+, and H2O in the disk around TW Hydrae

VN Salinas, MR Hogerheijde, EA Bergin… - Astronomy & …, 2016 - aanda.org
Context. Nitrogen chemistry in protoplanetary disks and the freeze-out on dust particles is
key for understanding the formation of nitrogen-bearing species in early solar system …

AB Aur, a Rosetta stone for studies of planet formation-II. H2S detection and sulfur budget

P Rivière-Marichalar, A Fuente, G Esplugues… - Astronomy & …, 2022 - aanda.org
Context. The sulfur abundance is poorly known in most environments. Yet, deriving the
sulfur abundance is key to understanding the evolution of the chemistry from molecular …

Rate coefficients for rotational state-to-state transitions in H2O+ H2O collisions for cometary and planetary applications, as predicted by mixed quantum-classical …

B Mandal, D Babikov - Astronomy & Astrophysics, 2023 - aanda.org
Aims. We present new calculations of collision cross sections for state-to-state transitions
between the rotational states in an H 2 O+ H 2 O system, which are used to generate a new …

Atom Tunneling in the Water Formation Reaction H2 + OH → H2O + H on an Ice Surface

J Meisner, T Lamberts, J Kästner - ACS Earth and Space …, 2017 - ACS Publications
OH radicals play a key role as an intermediate in the water formation chemistry of the
interstellar medium. For example, the reaction of OH radicals with H2 molecules is among …

Photostimulated desorption of OH radicals from amorphous solid water: Evidence for the interaction of visible light with an OH-ice complex

A Miyazaki, N Watanabe, WMC Sameera, Y Nakai… - Physical Review A, 2020 - APS
Using a combination of photostimulated desorption and resonance-enhanced multiphoton
ionization techniques, OH radicals photodesorbed from amorphous solid water at low …

Unveiling subsurface hydrogen-bond structure of hexagonal water ice

Y Otsuki, T Sugimoto, T Ishiyama, A Morita… - Physical Review B, 2017 - APS
The phase-resolved sum-frequency-generation (SFG) spectrum for the basal face of
hexagonal ice is reported and is interpreted by molecular dynamics simulations combined …