activity
20012026
most citedA model for atomic and molecular interstellar gas: The Meudon PDR code

538 citations · 3.5k across the 56 of their papers we have counts for

collaborators

56 papers

astro-ph.GA2026

Physical conditions in PDRs revealed by IGRINS ro-vibrational H2 observations

Aurélien Piluso, Vincent Maillard, Raphael Meshaka +10

We compare H2 high ro-vibrational observations of 5 PDRs (S140, IC63, Horsehead Nebula, NGC 2023 and Orion Bar) obtained with the IGRINS spectrograph to PDR models produced with th…

astro-ph.GA2025★ 1 cited

PDRs4All XVII: Formation and excitation of HD in photodissociation regions. Application to the Orion Bar

Marion Zannese, Jacques Le Bourlot, Evelyne Roueff +12

The James Webb Space Telescope enabled the first detection of several rovibrational emission lines of HD in the Orion Bar, a prototypical photodissociation region. This provides an…

astro-ph.EP2025

Edge-On Disk Study (EODS) II: HCO and CO vertical stratification in the disk surrounding SSTTau042021

C. Foucher, A. Dutrey, V. Piétu +17

Context. Edge-on disks offer a unique opportunity to directly examine their vertical structure, providing valuable insights into planet formation processes. We investigate the dust…

astro-ph.GA2025★ 3 cited

A Tentative Detection of Molecular Hydrogen (H) Emission Lines at Cosmic Dawn

Madisen Johnson, Blakesley Burkhart, Francesco D'Eugenio +11

We present a theoretical framework for interpreting far-ultraviolet (FUV) fluorescent emission from molecular hydrogen (H) in high-redshift galaxies, motivated by the unique ca…

astro-ph.GA2024★ 16 cited

PDRs4All. X. ALMA and JWST detection of neutral carbon in the externally irradiated disk d203-506: Undepleted gas-phase carbon

Javier R. Goicoechea, J. Le Bourlot, J. H. Black +26

The gas-phase abundance of carbon, x_C = C/H, and its depletion factors are essential parameters for understanding the gas and solid compositions that are ultimately incorporated i…

astro-ph.GA2024

PDRs4All VIII: Mid-IR emission line inventory of the Orion Bar

Dries Van De Putte, Raphael Meshaka, Boris Trahin +135

Mid-infrared emission features probe the properties of ionized gas, and hot or warm molecular gas. The Orion Bar is a frequently studied photodissociation region (PDR) containing l…

astro-ph.GA2024

PDRs4All IX. Sulfur elemental abundance in the Orion Bar

Asunción Fuente, Evelyne Roueff, Franck Le Petit +31

One of the main problems in astrochemistry is determining the amount of sulfur in volatiles and refractories in the interstellar medium. The detection of the main sulfur reservoirs…

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★ 92 cited

PDRs4All III: JWST's NIR spectroscopic view of the Orion Bar

Els Peeters, Emilie Habart, Olivier Berne +135

(Abridged) We investigate the impact of radiative feedback from massive stars on their natal cloud and focus on the transition from the HII region to the atomic PDR (crossing the i…

astro-ph.GA2023★ 19 cited

HCN emission from translucent gas and UV-illuminated cloud edges revealed by wide-field IRAM 30m maps of Orion B GMC: Revisiting its role as tracer of the dense gas reservoir for star formation

M. G. Santa-Maria, J. R. Goicoechea, J. Pety +28

We present 5 deg^2 (~250 pc^2) HCN, HNC, HCO+, and CO J=1-0 maps of the Orion B GMC, complemented with existing wide-field [CI] 492 GHz maps, as well as new pointed observations of…

astro-ph.GA2023★ 47 cited

PDRs4All II: JWST's NIR and MIR imaging view of the Orion Nebula

Emilie Habart, Els Peeters, Olivier Berné +139

The JWST has captured the most detailed and sharpest infrared images ever taken of the inner region of the Orion Nebula, the nearest massive star formation region, and a prototypic…

astro-ph.GA2023★ 17 cited

The extremely sharp transition between molecular and ionized gas in the Horsehead nebula

C. Hernández-Vera, V. V. Guzmán, J. R. Goicoechea +12

(Abridged) Massive stars can determine the evolution of molecular clouds with their strong ultraviolet (UV) radiation fields. Moreover, UV radiation is relevant in setting the ther…

astro-ph.GA2023

Understanding the temperatures of H3+ and H2 in diffuse interstellar sightlines

Jacques Le Bourlot, Evelyne Roueff, Franck Le Petit +3

The triatomic hydrogen ion H3+ is one of the most important species for the gas phase chemistry of the interstellar medium. Observations of H3+ are used to constrain important phys…

stat.ME2022★ 3 cited

Efficient sampling of non log-concave posterior distributions with mixture of noises

Pierre Palud, Pierre-Antoine Thouvenin, Pierre Chainais +2

This paper focuses on a challenging class of inverse problems that is often encountered in applications. The forward model is a complex non-linear black-box, potentially non-inject…

astro-ph.GA2022★ 16 cited

OH mid-infrared emission as a diagnostic of HO UV photodissociation. II. Application to interstellar PDRs

Marion Zannese, Benoît Tabone, Emilie Habart +3

Water photodissociation in the 114 - 144 nm UV range forms excited OH which emits at mid-infrared wavelengths via highly excited rotational lines. These lines have only been detect…

astro-ph.GA2022★ 2 cited

Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter

Javier R. Goicoechea, Sara Cuadrado, Franck Le Petit

Far-ultraviolet photons from OB-type massive stars regulate the heating, ionization, and chemistry of much of the neutral interstellar gas in star-forming galaxies. The interaction…

astro-ph.GA2022★ 88 cited

PDRs4All: A JWST Early Release Science Program on radiative feedback from massive stars

Olivier Berné, Émilie Habart, Els Peeters +134

Massive stars disrupt their natal molecular cloud material through radiative and mechanical feedback processes. These processes have profound effects on the evolution of interstell…

astro-ph.GA2021★ 18 cited

Dynamical effects of the radiative stellar feedback on the H I-to-H2 transition

Vincent Maillard, Emeric Bron, Franck Le Petit

The atomic-to-molecular hydrogen (H/H2) transition has been extensively studied as it controls the fraction of gas in a molecular state in an interstellar cloud. This fraction is l…

astro-ph.GA2020★ 20 cited

Quantitative inference of the column densities from 3 mm molecular emission: A case study towards Orion B

Pierre Gratier, Jérôme Pety, Emeric Bron +21

Molecular hydrogen being unobservable in cold molecular clouds, the column density measurements of molecular gas currently rely either on dust emission observation in the far-IR or…

astro-ph.GA2020★ 25 cited

Tracers of the ionization fraction in dense and translucent gas: I. Automated exploitation of massive astrochemical model grids

Emeric Bron, Evelyne Roueff, Maryvonne Gerin +21

The ionization fraction plays a key role in the physics and chemistry of the neutral interstellar medium, from controlling the coupling of the gas to the magnetic field to allowing…

astro-ph.GA2019★ 37 cited

A dynamically young, gravitationally stable network of filaments in Orion B

Jan H. Orkisz, Nicolas Peretto, Jérôme Pety +15

Filaments are a key step on the path that leads from molecular clouds to star formation. However, their characteristics are heavily debated, and the exact processes that lead to th…

astro-ph.GA2018★ 56 cited

The chemistry of disks around T Tauri and Herbig Ae/Be stars

Marcelino Agundez, Evelyne Roueff, Franck Le Petit +1

Infrared and (sub-)mm observations of disks around T Tauri and Herbig Ae/Be stars point to a chemical differentiation between both types of disks, with a lower detection rate of mo…

astro-ph.GA2018★ 104 cited

Structure of photodissociation fronts in star-forming regions revealed by observations of high-J CO emission lines with Herschel

C. Joblin, E. Bron, C. Pinto +17

In bright photodissociation regions (PDRs) associated to massive star formation, the presence of dense "clumps" that are immersed in a less dense interclump medium is often propose…

astro-ph.GA2017★ 62 cited

The ESO Diffuse Interstellar Bands Large Exploration Survey: EDIBLES I. Project description, survey sample and quality assessment

Nick Cox, Jan Cami, Amin Farhang +27

The carriers of the diffuse interstellar bands (DIBs) are largely unidentified molecules ubiquitously present in the interstellar medium (ISM). After decades of study, two strong a…