Photodissociation and X-Ray-Dominated Regions

MG Wolfire, L Vallini, M Chevance - Annual Review of …, 2022 - annualreviews.org
The radiation from stars and active galactic nuclei (AGNs) creates photodissociation regions
(PDRs) and X-ray-dominated regions (XDRs), where the chemistry or heating is dominated …

Exploring the vacuum ultraviolet photochemistry of astrochemically important triatomic molecules

Y Chang, MNR Ashfold, K Yuan… - National Science …, 2023 - academic.oup.com
The recently constructed vacuum ultraviolet (VUV) free electron laser (FEL) at the Dalian
Coherent Light Source (DCLS) is yielding a wealth of new and exquisitely detailed …

PDRs4All: A JWST early release science program on radiative feedback from massive stars

PI Team, O Berné, É Habart, E Peeters… - Publications of the …, 2022 - iopscience.iop.org
The James Webb Space Telescope (JWST, Gardner et al. 2006) is a 6.5 m space telescope
launched in 2021 December and is developed by the National Aeronautics and Space …

Gas phase Elemental abundances in Molecular cloudS (GEMS)-VII. Sulfur elemental abundance

A Fuente, P Rivière-Marichalar, L Beitia-Antero… - Astronomy & …, 2023 - aanda.org
Context. Gas phase Elemental abundances in molecular CloudS (GEMS) is an IRAM 30-m
Large Program aimed at determining the elemental abundances of carbon (C), oxygen (O) …

Photodissociation and photoionization of molecules of astronomical interest-Updates to the Leiden photodissociation and photoionization cross section database

HR Hrodmarsson, EF Van Dishoeck - Astronomy & Astrophysics, 2023 - aanda.org
Context. Vacuum-ultraviolet (VUV) photons are important drivers of chemical processes in
space. Thus, it is important to accurately characterize and constrain photorates in different …

Gas phase Elemental abundances in Molecular cloudS (GEMS)-II. On the quest for the sulphur reservoir in molecular clouds: the H2S case

D Navarro-Almaida, R Le Gal, A Fuente… - Astronomy & …, 2020 - aanda.org
Context. Sulphur is one of the most abundant elements in the Universe. Surprisingly,
sulphuretted molecules are not as abundant as expected in the interstellar medium and the …

Rotational and nuclear-spin level dependent photodissociation dynamics of H2S

Y Zhao, Z Luo, Y Chang, Y Wu, S Zhang, Z Li… - Nature …, 2021 - nature.com
The detailed features of molecular photochemistry are key to understanding chemical
processes enabled by non-adiabatic transitions between potential energy surfaces. But …

PDRs4All-X. ALMA and JWST detection of neutral carbon in the externally irradiated disk d203-506: Undepleted gas-phase carbon

JR Goicoechea, J Le Bourlot, JH Black… - Astronomy & …, 2024 - aanda.org
The gas-phase abundance of carbon, x C=[C/H] gas= x C++ x C 0+ x CO+…, and its
depletion factors are essential parameters for understanding the gas and solid compositions …

The initial gas-phase sulfur abundance in the Orion Molecular Cloud from sulfur radio recombination lines

JR Goicoechea, S Cuadrado - Astronomy & Astrophysics, 2021 - aanda.org
The abundances of chemical elements and their depletion factors are essential parameters
for understanding the composition of the gas and dust that are ultimately incorporated into …

An ALCHEMI inspection of sulphur-bearing species towards the central molecular zone of NGC 253

M Bouvier, S Viti, E Behrens, J Butterworth… - Astronomy & …, 2024 - aanda.org
Context. Sulphur-bearing species are detected in various environments within Galactic star-
forming regions and are particularly abundant in the gas phase of outflow and shocked …