827 citations · 3.5k across the 36 of their papers we have counts for
36 papers
JWST imaging of the Pleiades: anisotropy of turbulence in the cold neutral medium
G. Vigoureux, N. Flagey, F. Boulanger +14
Interstellar medium studies rely on magnetohydrodynamic (MHD) turbulence as a framework for interpretation. In this context, the statistical characterization of interstellar observ…
Variance of dust temperature and spectral index in Planck polarization data using spin-moment expansion
Vincent Guillet, Léo Vacher, Jonathan Aumont +4
Thermal dust is the major polarized foreground hindering the detection of primordial cosmic microwave background (CMB) B-modes. Its signal exhibits complex behavior in frequency sp…
Impact of the ambipolar diffusion in the structuration of the magnetic Rayleigh Taylor instability with oblique magnetic field
E. Callies, V. Guillet, A. Marcowith +2
Aims. We investigate the impact of ambipolar diffusion on the development of the Rayleigh-Taylor instability (RTI) with an oblique magnetic field in the incompressible limit. Metho…
THEMIS 2.0: A self-consistent model for dust extinction, emission, and polarisation
Nathalie Ysard, Anthony Peter Jones, Vincent Guillet +6
Recent observations in emission, extinction, and polarisation have at least partially invalidated most of the astronomical standard grain models for the diffuse ISM. Moreover, lab…
Protostellar collapse simulations in spherical geometry with dust coagulation and fragmentation
Ugo Lebreuilly, Valentin Vallucci-Goy, Vincent Guillet +2
We model the coagulation and fragmentation of dust grains during the protostellar collapse with our newly developed shark code. It solves the gas-dust hydrodynamics in a spherical…
Dust polarization spectral dependence from Planck HFI data. Turning point on CMB polarization foregrounds modelling
Alessia Ritacco, François Boulanger, Vincent Guillet +4
The search for the primordial B-modes of the cosmic microwave background (CMB) relies on the separation from the brighter foreground dust signal. In this context, the characterisat…
Performance of the polarization leakage correction in the PILOT data
J-Ph. Bernard, A. Bernard, H. Roussel +33
The Polarized Instrument for Long-wavelength Observation of the Tenuous interstellar medium (PILOT) is a balloon-borne experiment that aims to measure the polarized emission of the…
Fast methods for tracking grain coagulation and ionization. I. Analytic derivation
Pierre Marchand, Vincent Guillet, Ugo Lebreuilly +1
Dust grains play a major role in many astrophysical contexts. They affect the chemical, magnetic, dynamical, and optical properties of their environment, from galaxies down to the…
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…
Dust coagulation feedback on magnetohydrodynamic resistivities in protostellar collapse
V. Guillet, P. Hennebelle, G. Pineau des Forêts +3
The degree of coupling between the gas and the magnetic field during the collapse of a core and the subsequent formation of a disk depends on the assumed dust size distribution. We…
A systematic study of radiative torque grain alignment in the diffuse interstellar medium
Stefan Reissl, Vincent Guillet, Robert Brauer +3
Context. Planck observations demonstrated that the grain alignment efficiency is almost constant in the diffuse ISM. Aims. We test if the Radiative Torque (RAT) theory is compatibl…
Polarized emission by aligned grains in the Mie regime : application to protoplanetary disks observed by ALMA
V. Guillet, J. M. Girart, A. J. Maury +1
The azimuthal polarization patterns observed in some protoplanetary disks by ALMA at millimeter wavelength have raised doubts about their being produced by dust grains aligned with…
Indirect evidence of significant grain growth in young protostellar envelopes from polarized dust emission
Valeska Valdivia, Anaelle Maury, Robert Brauer +4
How and when in the star formation sequence do dust grains start to grow into pebbles is a cornerstone question to both star and planet formation. We compute the polarized radiativ…
Probing the cold magnetized Universe with SPICA-POL (B-BOP)
Ph. André, A. Hughes, V. Guillet +53
SPICA, the cryogenic infrared space telescope recently pre-selected for a `Phase A' concept study as one of the three remaining candidates for ESA's fifth medium class (M5) mission…
The geometry of the magnetic field in the Central Molecular Zone measured by PILOT
A. Mangilli, J. Aumont, J. -Ph. Bernard +34
We present the first far infrared (FIR) dust emission polarization map covering the full extent Milky Way's Central molecular zone (CMZ). The data, obtained with the PILOT balloon-…
Dust spectrum and polarisation at 850 um in the massive IRDC G035.39-00.33
Mika Juvela, Vincent Guillet, Tie Liu +18
The dust sub-millimetre polarisation of star-forming clouds carries information on dust and the role of magnetic fields in cloud evolution. With observations of a dense filamentary…
Dust models compatible with Planck intensity and polarization data in translucent lines of sight
V. Guillet, L. Fanciullo, L. Verstraete +6
The dust properties inferred from the analysis of Planck observations in total and polarized emission challenge current dust models. We propose new dust models compatible with pola…
Interplay of dust alignment, grain growth and magnetic fields in polarization: lessons from the emission-to-extinction ratio
Lapo Fanciullo, Vincent Guillet, François Boulanger +1
Polarized extinction and emission from dust in the interstellar medium (ISM) are hard to interpret, as they have a complex dependence on dust optical properties, grain alignment an…
Learning through experimenting: an original way of teaching geometrical optics
C. Even, C. Balland, V. Guillet
Over the past 10 years, we have developed at University Paris Sud a first year course on geometrical optics centered on experimentation. In contrast with the traditional top-down l…
Magnetic field morphology in nearby molecular clouds as revealed by starlight and submillimetre polarization
J. D. Soler, F. Alves, F. Boulanger +8
Within four nearby (d < 160 pc) molecular clouds, we statistically evaluate the structure of the interstellar magnetic field, projected on the plane of the sky and integrated along…
Planck intermediate results. XLIV. The structure of the Galactic magnetic field from dust polarization maps of the southern Galactic cap
Planck Collaboration, N. Aghanim, M. I. R. Alves +165
We study the statistical properties of interstellar dust polarization at high Galactic latitude, using the Stokes parameter Planck maps at 353 GHz. Our aim is to advance the unders…
Dust models post-Planck: constraining the far-infrared opacity of dust in the diffuse interstellar medium
Lapo Fanciullo, Vincent Guillet, Gonzalo Aniano +5
We compare the performance of several dust models in reproducing the dust spectral energy distribution (SED) per unit extinction in the diffuse interstellar medium (ISM). We use ou…
Planck intermediate results. XXXVIII. E- and B-modes of dust polarization from the magnetized filamentary structure of the interstellar medium
Planck Collaboration, P. A. R. Ade, N. Aghanim +192
The quest for a B-mode imprint from primordial gravity waves on the polarization of the cosmic microwave background (CMB) requires the characterization of foreground polarization f…
Planck intermediate results. XXXV. Probing the role of the magnetic field in the formation of structure in molecular clouds
Planck Collaboration, P. A. R. Ade, N. Aghanim +195
Within ten nearby (d < 450 pc) Gould Belt molecular clouds we evaluate statistically the relative orientation between the magnetic field projected on the plane of sky, inferred fro…