167 citations · 804 across the 15 of their papers we have counts for
13 papers · 1 filter
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…
Star cluster progenitors are dynamically decoupled from their parent molecular clouds
Nicolas Peretto, Andrew J. Rigby, Fabien Louvet +3
The formation of stellar clusters dictates the pace at which galaxies evolve, and solving the question of their formation will undoubtedly lead to a better understanding of the Uni…
Gas kinematics around filamentary structures in the Orion B cloud
Mathilde Gaudel, Jan H. Orkisz, Maryvonne Gerin +27
Understanding the initial properties of star-forming material and how they affect the star formation process is key. From an observational point of view, the feedback from young hi…
An observational correlation between magnetic field, angular momentum and fragmentation in the envelopes of Class 0 protostars?
Maud Galametz, Anaelle Maury, Josep M. Girart +8
To assess the potential role of magnetic fields in regulating the envelope rotation and the fragmentation of Class 0 protostars, we carried out observations of the dust polarized e…
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…
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…
C18O, 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
Antoine Roueff, Maryvonne Gerin, Pierre Gratier +23
CO isotopologue transitions are routinely observed in molecular clouds to probe the column density of the gas, the elemental ratios of carbon and oxygen, and to trace the kinematic…
Protostellar disk formation by a non-rotating, non-axisymmetric collapsing cloud: model and comparison with observations
Antoine Verliat, Patrick Hennebelle, Anaëlle J. Maury +1
Planet-forming disks are fundamental objects thought to be inherited from large scale rotation, through the conservation of angular momentum during the collapse of a prestellar den…
Questioning the spatial origin of complex organic molecules in young protostars with the CALYPSO survey
A. Belloche, A. J. Maury, S. Maret +12
Complex organic molecules (COMs) have been detected in a few Class 0 protostars but their origin is not well understood. Going beyond studies of individual objects, we want to inve…
Characterizing young protostellar disks with the CALYPSO IRAM-PdBI survey: large Class 0 disks are rare
A. J. Maury, Ph. André, L. Testi +15
Understanding the formation mechanisms of protoplanetary disks and multiple systems, and their pristine properties, is a key question for modern astrophysics. The properties of the…
SMA observations of the polarized dust emission in solar-type Class 0 protostars: the magnetic field properties at envelope scales
Maud Galametz, Anaelle Maury, Josep M. Girart +6
Although, from a theoretical point of view, magnetic fields are believed to have a significant role during the early stages of star formation, especially during the main accretion…
The unexpectedly large proportion of high-mass star-forming cores in a Galactic mini-starburst
F. Motte, T. Nony, F. Louvet +14
Understanding the processes that determine the stellar Initial Mass Function (IMF) is a critical unsolved problem, with profound implications for many areas of astrophysics. In mol…
Star formation in infrared dark clouds: Self-gravity and dynamics
Nicolas Peretto, Mathilde Gaudel, Fabien Louvet +3
The role played by gravity in the transfer of interstellar matter from molecular cloud scales to protostellar scales is still highly debated. Only detailed studies on the kinematic…