activity
20152024
most citedUCLCHEM: A Gas-Grain Chemical Code

141 citations · 1.3k across the 42 of their papers we have counts for

collaborators

42 papers

astro-ph.GA2024

Neural Network Constraints on the Cosmic-Ray Ionization Rate and Other Physical Conditions in NGC 253 with ALCHEMI Measurements of HCN and HNC

Erica Behrens, Jeffrey G. Mangum, Serena Viti +15

We use a neural network model and ALMA observations of HCN and HNC to constrain the physical conditions, most notably the cosmic-ray ionization rate (CRIR, zeta), in the Central Mo…

astro-ph.GA2023

Disentangling Multiple Emitting Components in Molecular Observations with Non-negative Matrix Factorization

Damien de Mijolla, Jonathan Holdship, Serena Viti +1

Molecular emission from the galactic and extragalactic interstellar medium (ISM) is often used to determine the physical conditions of the dense gas. However, even from spatially r…

astro-ph.GA2023★ 2 cited

GMC Collisions As Triggers of Star Formation. IX. Chemical Evolution

Chia-Jung Hsu, Jonathan C. Tan, Jonathan Holdship +5

Collisions between giant molecular clouds (GMCs) have been proposed as a mechanism to trigger massive star and star cluster formation. To investigate the astrochemical signatures o…

astro-ph.GA2023★ 10 cited

Hydrodynamic simulations of the Disk of Gas Around Supermassive black holes (HDGAS) -I; Molecular Gas Dynamics

Mojtaba Raouf, Serena Viti, S. García-Burillo +9

We present hydrodynamic simulations of the interstellar medium (ISM) within the circumnuclear disk (CND) of a typical AGN-dominated galaxy influenced by mechanical feedback from an…

astro-ph.GA2023★ 16 cited

Reconstructing the shock history in the CMZ of NGC 253 with ALCHEMI

K. -Y. Huang, S. Viti, J. Holdship +19

HNCO and SiO are well known shock tracers and have been observed in nearby galaxies, including the nearby (D=3.5 Mpc) starburst galaxy NGC 253. The simultaneous detection of these…

astro-ph.GA2023★ 4 cited

Investigating the impact of reactions of C and CH with molecular hydrogen on a glycine gas-grain network

Johannes Heyl, Thanja Lamberts, Serena Viti +1

The impact of including the reactions of C and CH with molecular hydrogen in a gas-grain network is assessed via a sensitivity analysis. To this end, we vary 3 parameters, namely,…