158 citations · 1.8k across the 46 of their papers we have counts for
47 papers
Large small-scale kinematic dynamo in protoneutron stars
Shipra Verma, Kannabiran Seshasayanan, Raphaël Raynaud +1
Magnetars are young, isolated neutron stars that possess an exceptionally strong magnetic field, with surface dipolar strengths on the order of G. One of the plausible sc…
Transport of angular momentum and chemical elements by the MRI dynamo in stellar radiative zones
Laurène Jouve, François Lignières, Jérôme Guilet +1
The question of angular momentum transport by magnetic fields has recently been revived by the detection of magnetic fields in the deep interior of red giant stars. We aim at chara…
Complex dynamical regimes of the Tayler-Spruit dynamo
Paul Barrère, Paul Barrüre, Jérôme Guilet +2
Astrophysical dynamos feature various spatial structures and dynamical regimes, ranging from hemispherical magnetic fields to the random reversals of the geodynamo. The Tayler-Spru…
Probing millisecond magnetar formation in binary neutron star mergers through X-ray follow-up of gravitational wave alerts
Clara Plasse, Alexis Reboul-Salze, Jérome Guilet +5
The nature of the remnant of a binary neutron star (BNS) merger is uncertain. Though certainly a black hole (BH) in the cases of the most massive BNSs, X-ray lightcurves from gamma…
From proto-neutron star dynamo to low-field magnetars
Andrei Igoshev, Paul Barrère, Raphaël Raynaud +3
Low-field magnetars have dipolar magnetic fields that are 10-100 times weaker than the threshold, G, used to define classical magnetars, yet they produce simila…
Tayler-Spruit dynamo in binary neutron star merger remnants
Alexis Reboul-Salze, Paul Barrère, Kenta Kiuchi +4
In binary neutron star mergers, the remnant can be stabilized by differential rotation before it collapses into a black hole. Therefore, the angular momentum transport mechanisms a…
Long term monitoring of FRB~20121102 with the Nançay Radio Telescope and multi-wavelength campaigns including INTEGRAL
C. Gouiffés, C. Ng, I. Cognard +12
The origin(s) of Fast Radio Bursts (FRBs), mysterious radio bursts coming from extragalactic distances, remains unknown. Multi-wavelength observations are arguably the only way to…
Tayler-Spruit dynamo in stably stratified rotating fluids: Application to proto-magnetars
Paul Barrère, Jérôme Guilet, Raphaël Raynaud +1
The formation of highly magnetized young neutron stars, called magnetars, is still a strongly debated question. A promising scenario invokes the amplification of the magnetic field…
Nucleosynthesis in magnetorotational supernovae: impact of the magnetic field configuration
M. Reichert, M. Bugli, J. Guilet +3
The production of heavy elements is one of the main by-products of the explosive end of massive stars. A long sought goal is finding differentiated patterns in the nucleosynthesis…
Prospects for realtime characterization of core-collapse supernova and neutrino properties
Meriem Bendahman, Isabel Goos, Joao Coelho +9
Core-collapse supernovae (CCSNe) offer extremely valuable insights into the dynamics of galaxies. Neutrino time profiles from CCSNe, in particular, could reveal unique details abou…
Environmental transition: overview of actions to reduce the environmental footprint of astronomy
Lucie Leboulleux, Faustine Cantalloube, Marie-Alice Foujols +15
To keep current global warming below 1.5°C compared with the pre-industrial era, measures must be taken as quickly as possible in all spheres of society. Astronomy must also make i…
Numerical simulations of the Tayler-Spruit dynamo in proto-magnetars
Paul Barrère, Jérôme Guilet, Raphaël Raynaud +1
The Tayler-Spruit dynamo is one of the most promising mechanisms proposed to explain angular momentum transport during stellar evolution. Its development in proto-neutron stars spu…
Effect of stellar rotation on the development of post-shock instabilities during core-collapse supernovae
A. -C. Buellet, T. Foglizzo, J. Guilet +1
The growth of instabilities is key to trigger a supernova explosion during the phase of stalled shock, immediately after the birth of a proto-neutron star (PNS). We assess the effe…
Three-dimensional core-collapse supernovae with complex magnetic structures: II. Rotational instabilities and multi-messenger signatures
Matteo Bugli, Jérôme Guilet, Thierry Foglizzo +1
The gravitational collapse of rapidly rotating massive stars can lead to the onset of the low instability within the central proto-neutron star (PNS), which leaves strong…
A new scenario for magnetar formation: Tayler-Spruit dynamo in a proto-neutron star spun up by fallback
P. Barrère, J. Guilet, A. Reboul-Salze +2
Magnetars are isolated young neutron stars characterized by the most intense magnetic fields known in the universe. The origin of their magnetic field is still a challenging questi…
MRI-driven dynamo at very high magnetic Prandtl numbers
Jerome Guilet, Alexis Reboul-Salze, Raphael Raynaud +2
The dynamo driven by the magnetorotational instability (MRI) is believed to play an important role in the dynamics of accretion discs and may also explain the origin of the extreme…
MRI-driven dynamos in protoneutron stars
Alexis Reboul-Salze, Jérôme Guilet, Raphaël Raynaud +1
Magnetars are highly magnetized neutron stars that can produce X-ray and soft gamma-ray emissions and that have a dipole of G to G. A promising mechanism for ex…
Three-dimensional core-collapse supernovae with complex magnetic structures: I. Explosion dynamics
Matteo Bugli, Jérôme Guilet, Martin Obergaulinger
Magnetic fields can play a major role in the dynamics of outstanding explosions associated to violent events such as GRBs and hypernovae, since they provide a natural mechanism to…
Gravitational wave signature of proto-neutron star convection: I. MHD numerical simulations
Raphaël Raynaud, Pablo Cerdá-Durán, Jérôme Guilet
Gravitational waves provide a unique and powerful opportunity to constrain the dynamics in the interior of proto-neutron stars during core collapse supernovae. Convective motions p…
A global model of the magnetorotational instability in protoneutron stars
Alexis Reboul-Salze, Jérôme Guilet, Raphaël Raynaud +1
Magnetars are highly magnetized neutron stars whose magnetic dipole ranges from to G. The MRI is considered to be a promising mechanism to amplify the magnetic…
Magnetar formation through a convective dynamo in protoneutron stars
Raphaël Raynaud, Jérôme Guilet, Hans-Thomas Janka +1
The release of spin-down energy by a magnetar is a promising scenario to power several classes of extreme explosive transients. However, it lacks a firm basis because magnetar form…
The impact of non-dipolar magnetic fields in core-collapse supernovae
M. Bugli, J. Guilet, M. Obergaulinger +2
The magnetic field is believed to play an important role in at least some core-collapse supernovae if its magnitude reaches , which is a typical value for a magnet…
The non-linear onset of neutrino-driven convection in two and three-dimensional core-collapse supernovae
Rémi Kazeroni, Brendan K. Krueger, Jérôme Guilet +2
A toy model of the post-shock region of core-collapse supernovae is used to study the non-linear development of turbulent motions driven by convection in the presence of advection.…
Papaloizou-Pringle instability suppression by the magnetorotational instability in relativistic accretion discs
Matteo Bugli, Jérôme Guilet, Ewald Müller +3
Geometrically thick tori with constant specific angular momentum have been widely used in the last decades to construct numerical models of accretion flows onto black holes. Such d…