activity
20142026
most citedUbiquitous argonium (ArH) in the diffuse interstellar medium -- a molecular tracer of almost purely atomic gas

149 citations · 211 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

H2 emission in the Orion Bar, NGC7023 and the Horsehead Nebula observed with the James Webb Space Telescope

M. Zannese, A. Sidhu, A. Guerras +25

Molecular hydrogen (H2), the most abundant molecule in the interstellar medium, is a handy tool to study Photodissociation Regions. The JWST, with its high spatial resolution, sens…

astro-ph.GA2025★ 6 cited

Mapping the Cosmic-Ray Ionization Rate in the Local Galaxy with H

Nick Indriolo, Alexei V. Ivlev, T. Pellegrin +6

Chemistry in diffuse molecular clouds relies primarily on rapid ion-molecule reactions. Formation of the initial ions, H and H, is dominated by cosmic-ray ionization of H…

astro-ph.GA2025

The Resolved Structure of a Low Metallicity Photodissociation Region

Ilyse Y. Clark, Karin Sandstrom, Mark Wolfire +14

Photodissociation Regions (PDRs) are key to understanding the feedback processes that shape interstellar matter in galaxies. One important type of PDR is the interface between HII…

astro-ph.GA2024

A far-ultraviolet-driven photoevaporation flow observed in a protoplanetary disk

Olivier Berné, Emilie Habart, Els Peeters +143

Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict that this FUV radiati…

astro-ph.GA2023

Identifying physical structures in our Galaxy with Gaussian Mixture Models: An unsupervised machine learning technique

M. Tiwari, R. Kievit, S. Kabanovic +14

We explore the potential of the Gaussian Mixture Model (GMM), an unsupervised machine learning method, to identify coherent physical structures in the ISM. The implementation we pr…

astro-ph.GA2021★ 6 cited

The chemistry of chlorine-bearing species in the diffuse interstellar medium, and new SOFIA/GREAT observations of HCl

David A. Neufeld, Helmut Wiesemeyer, Mark J. Wolfire +6

We have revisited the chemistry of chlorine-bearing species in the diffuse interstellar medium with new observations of the HCl molecular ion and new astrochemical models. Usin…

astro-ph.GA2017★ 50 cited

Thermal Pressure in the Cold Neutral Medium of Nearby Galaxies

R. Herrera-Camus, A. Bolatto, M. Wolfire +14

Dynamic and thermal processes regulate the structure of the multi-phase interstellar medium (ISM), and ultimately establish how galaxies evolve through star formation. Thus, to con…

astro-ph.GA2014★ 149 cited

Ubiquitous argonium (ArH) in the diffuse interstellar medium -- a molecular tracer of almost purely atomic gas

Peter Schilke, David A. Neufeld, Holger S. P. Müller +14

We describe the assignment of a previously unidentified interstellar absorption line to ArH and discuss its relevance in the context of hydride absorption in diffuse gas with a…