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 …

[HTML][HTML] Interstellar water chemistry: from laboratory to observations

EF Van Dishoeck, E Herbst, DA Neufeld - Chemical Reviews, 2013 - ACS Publications
Water is a fundamental molecule in the universe. On Earth, water exists in all three phases:
gas, liquid, and solid (ice). Liquid water facilitates many chemical reactions as a solvent …

[HTML][HTML] 2018 census of interstellar, circumstellar, extragalactic, protoplanetary disk, and exoplanetary molecules

BA McGuire - The Astrophysical Journal Supplement Series, 2018 - iopscience.iop.org
To date, 204 individual molecular species, comprised of 16 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

[HTML][HTML] 2021 census of interstellar, circumstellar, extragalactic, protoplanetary disk, and exoplanetary molecules

BA McGuire - The Astrophysical Journal Supplement Series, 2022 - iopscience.iop.org
To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

The nine lives of cosmic rays in galaxies

IA Grenier, JH Black, AW Strong - Annual Review of Astronomy …, 2015 - annualreviews.org
Cosmic-ray astrophysics has advanced rapidly in recent years, and its impact on other
astronomical disciplines has broadened. Many new experiments measuring these particles …

The molecular universe

A Tielens - Reviews of Modern Physics, 2013 - APS
Molecular absorption and emission bands dominate the visible, infrared, and submillimeter
spectra of most objects with associated gas. These observations reveal a surprisingly rich …

Herschel survey of galactic OH+, H2O+, and H3O+: Probing the molecular hydrogen fraction and cosmic-ray ionization rate

N Indriolo, DA Neufeld, M Gerin, P Schilke… - The Astrophysical …, 2015 - iopscience.iop.org
In diffuse interstellar clouds the chemistry that leads to the formation of the oxygen-bearing
ions OH+, H 2 O+, and H 3 O+ begins with the ionization of atomic hydrogen by cosmic rays …

Investigating the cosmic-ray ionization rate in the galactic diffuse interstellar medium through observations of H+ 3

N Indriolo, BJ McCall - The Astrophysical Journal, 2012 - iopscience.iop.org
Observations of H+ 3 in the Galactic diffuse interstellar medium have led to various
surprising results, including the conclusion that the cosmic-ray ionization rate (ζ 2) is about …

The cosmic-ray ionization rate in the galactic disk, as determined from observations of molecular ions

DA Neufeld, MG Wolfire - The Astrophysical Journal, 2017 - iopscience.iop.org
We have obtained estimates for the cosmic-ray ionization rate (CRIR) in the Galactic disk,
using a detailed model for the physics and chemistry of diffuse interstellar gas clouds to …

Ion chemistry in space

M Larsson, WD Geppert, G Nyman - Reports on Progress in …, 2012 - iopscience.iop.org
We review the gas-phase chemistry in extraterrestrial space that is driven by reactions with
atomic and molecular ions. Ions are ubiquitous in space and are potentially responsible for …