activity
20242026
collaborators

7 papers

astro-ph.SR2026

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…

astro-ph.HE2026

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…

astro-ph.HE2026

Complex dynamical regimes of the Tayler-Spruit dynamo

Paul Barrère, Jérôme Guilet, Basile Gallet +1

Astrophysical dynamos feature various spatial structures and dynamical regimes, ranging from hemispherical magnetic fields to the random reversals of the geodynamo. The recently ob…

astro-ph.HE2025

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…

astro-ph.HE2024

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…

astro-ph.HE2024

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…