Publications (10)
The role of magnetic fields in the formation of multiple massive stars
R. Mignon-Risse, M. González, B. Commerçon
(Abridged) Context. Most massive stars are located in multiple stellar systems. Magnetic fields are believed to be essential in the accretion and ejection processes around single m…
Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer II. Outflows
R. Mignon-Risse, M. González, B. Commerçon
(Abridged) Most massive protostars exhibit bipolar outflows. Nonetheless, there is no consensus regarding the mechanism at the origin of these outflows, nor on the cause of the les…
The factors that influence protostellar multiplicity I: Gas temperature, density, and mass in Perseus with Nobeyama
N. M. Murillo, C. M. Fuchs, D. Harsono +9
Protostellar multiplicity is common at all stages and mass ranges. However, the factors that determine the multiplicity of protostellar systems have not been systematically charact…
A simple toy model for the electromagnetic variability of lump-dominated circumbinary disks around binary black holes
R. Mignon-Risse, P. Varniere, F. Casse
The electromagnetic detection of circumbinary disks around pre-merger binary black holes (BBHs) relies on theoretical predictions. These are generally obtained through expensive nu…
The factors that influence protostellar multiplicity II. Gas temperature and mass in Perseus with APEX
N. M. Murillo, C. M. Fuchs, D. Harsono +5
Protostellar multiplicity is a common outcome of the star formation process. To fully understand the formation and evolution of these systems, the physical parameters of the molecu…
A possible imprint of quasi-periodic oscillations in the X-ray spectra of black hole binaries
P. Varniere, R. Mignon-Risse, J. Rodriguez
While nobody would deny the presence of Quasi-Periodic Oscillations in the power density spectrum of Black hole binaries nor their importance in the understanding of the mechanisms…
Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer I. Accretion and multiplicity
R. Mignon-Risse, M. González, B. Commerçon +1
(Abridged) Context. Massive stars form in magnetized and turbulent environments, and are often located in stellar clusters. Their accretion mechanism, as well as the origin of thei…
ALMA-IMF I -- Investigating the origin of stellar masses: Introduction to the Large Program and first results
F. Motte, S. Bontemps, T. Csengeri +61
The ALMA-IMF Large Program imaged a total noncontiguous area of 53pc2, covering 15 extreme, nearby protoclusters of the Milky Way. They were selected to span relevant early protocl…
A statistical analysis of dust polarization properties in ALMA observations of Class 0 protostellar cores
V. J. M. Le Gouellec, A. J. Maury, V. Guillet +8
Recent observational progress has challenged the dust grain-alignment theories used to explain the polarized dust emission routinely observed in star-forming cores. In an effort to…
A new hybrid radiative transfer method for massive star formation
R. Mignon-Risse, M. González, B. Commerçon +1
Frequency-dependent/hybrid approaches for stellar irradiation are of primary importance in numerical simulations of massive star formation. We seek to compare outflow and accretion…