activity
20202026
most citedC18O, 13CO, and 12CO abundances and excitation temperatures in the Orion B molecular cloud: An analysis of the precision achievable when modeling spectral line within the Local Thermodynamic Equilibrium approximation

42 citations · 159 across the 13 of their papers we have counts for

collaborators

14 papers

astro-ph.GA2026

Chemical diversity of dense cores in Orion B: The role of the environment

Helena J. Mazurek, Maryvonne Gerin, Pierre Gratier +26

Prestellar cores are the sites of the earliest stages of star formation. Dust continuum observations are often used to identify and characterize their properties yet only a small f…

astro-ph.GA2025★ 1 cited

Tracers of the ionization fraction in dense and translucent molecular gas: II. Using mm observations to constrain ionization fraction across Orion B

Ivana Bešlić, Maryvonne Gerin, Viviana V. Guzmán +28

The ionization fraction () is a crucial parameter of interstellar gas, yet estimating it requires deep knowledge of molecular gas chemistry…

astro-ph.IM2025★ 1 cited

Beetroots: spatially-regularized Bayesian inference of physical parameter maps -- Application to Orion

Pierre Palud, Emeric Bron, Pierre Chainais +28

The current generation of millimeter receivers is able to produce cubes of 800 000 pixels by 200 000 frequency channels to cover several square degrees over the 3 mm atmospheric wi…

astro-ph.GA2025★ 1 cited

Estimating the dense gas mass of molecular clouds using spatially unresolved 3 mm line observations

Antoine Zakardjian, Annie Hughes, Jérôme Pety +28

We aim to develop a new method to infer the sub-beam probability density function (PDF) of H2 column densities and the dense gas mass within molecular clouds using spatially unreso…

astro-ph.GA2024★ 8 cited

Quantifying the informativity of emission lines to infer physical conditions in giant molecular clouds. I. Application to model predictions

Lucas Einig, Pierre Palud, Antoine Roueff +29

Observations of ionic, atomic, or molecular lines are performed to improve our understanding of the interstellar medium (ISM). However, the potential of a line to constrain the phy…

astro-ph.GA2024

Bias versus variance when fitting multi-species molecular lines with a non-LTE radiative transfer model

Antoine Roueff, Jérôme Pety, Maryvonne Gerin +28

Robust radiative transfer techniques are requisite for efficiently extracting the physical and chemical information from molecular rotational lines.We study several hypotheses that…