SO and SiS Emission Tracing an Embedded Planet and Compact 12CO and 13CO Counterparts in the HD 169142 Disk

CJ Law, AS Booth, KI Öberg - The Astrophysical Journal Letters, 2023 - iopscience.iop.org
Planets form in dusty, gas-rich disks around young stars, while at the same time, the planet
formation process alters the physical and chemical structure of the disk itself. Embedded …

The GRETOBAPE gas-phase reaction network: the importance of being exothermic

L Tinacci, S Ferrada-Chamorro… - The Astrophysical …, 2023 - iopscience.iop.org
The gas-phase reaction networks are the backbone of astrochemical models. However, due
to their complexity and nonlinear impact on the astrochemical modeling, they can be the first …

First detection of silicon-bearing molecules in η Car

C Bordiu, JR Rizzo, F Bufano… - The Astrophysical …, 2022 - iopscience.iop.org
We present ALMA band 6 observations of the luminous blue variable η Car obtained within
the ALMAGAL program. We report SiO J= 5→ 4, SiS J= 12→ 11, and SiN N= 5→ 4 emission …

Expanding the submillimeter wave spectroscopy and astronomical search for thioacetamide (CH3CSNH2) in the ISM

A Remijan, C Xue, L Margules, A Belloche… - Astronomy & …, 2022 - aanda.org
Context. One of the biggest unsolved mysteries of modern astrochemistry is understanding
chemical formation pathways in the interstellar medium (ISM) and circumstellar …

Confirmation of the outflow in L1451-mm: SiO line and CH3OH maser detections

V Wakelam, A Coutens, P Gratier, THG Vidal… - Astronomy & …, 2022 - aanda.org
Context. The observational counterparts of theoretically predicted first hydrostatic cores
(FHSC) have been searched for in the interstellar medium for nearly two decades now …

New SiS destruction and formation routes via neutral-neutral reactions and their fundamental role in interstellar clouds at low and high metallicity values

E Mendoza, SFM Costa, M Carvajal, S Pilling… - arXiv preprint arXiv …, 2024 - aanda.org
Context. Among the silicon-bearing species discovered in the interstellar medium, SiS and
SiO stand out as key tracers due to their distinct chemistry and variable abundances in …

Volatile composition of the HD 169142 disc and its embedded planet

L Keyte, M Kama, AS Booth, CJ Law… - Monthly Notices of the …, 2024 - academic.oup.com
The composition of a planet's atmosphere is intricately linked to the chemical makeup of the
protoplanetary disc in which it formed. Determining the elemental abundances from key …

Quasiclassical Trajectory Study of the Si+ SH Reaction on an Accurate Double Many-Body Expansion Potential Energy Surface

VC Mota, P Caridade, AJC Varandas… - The Journal of …, 2022 - ACS Publications
An accurate potential energy surface (PES) for the HSiS system based on MRCI+ Q
calculations extrapolated to the complete basis set limit is presented. Modeled with the …

The physical and chemical structure of Sagittarius B2-VIII. Full molecular line survey of hot cores

T Möller, P Schilke, Á Sánchez-Monge… - Astronomy & …, 2025 - aanda.org
Context. The giant molecular cloud complex Sagittarius B2 (Sgr B2) in the central molecular
zone of our Galaxy hosts several high-mass star formation sites, with Sgr B2 (M) and Sgr B2 …

The Si + SO2 collision and an extended network of neutral–neutral reactions between silicon and sulphur bearing species

DR Campanha, E Mendoza, MX Silva… - Monthly Notices of …, 2022 - academic.oup.com
The Si+ SO2 reaction is investigated to verify its impact on the abundances of molecules
with astrochemical interest, such as SiS, SiO, SO, and others. According to our results Si …