I will present the INTEGRAL analysis of a short gamma-ray burst from the magnetar SGR 1935+2154, which was spatially and temporally coincident with a short and very bright radio burst detected by CHIME and STARE2 at 400-800 MHz and 1.4 GHz. The radio burst presented the typical charateristics of Fast Radio Bursts and the simultaneous detection supports the magnetar origin for extragalactic FRBs.

New radio facilities have recently substantially increased the number of repeating Fast Radio Bursts and consequently have enabled multi-wavelength campaigns. Among them, FRB121102 has showed a flaring activity lasting for days to weeks. We will present a joint radio-hard X-ray programme with the NRT and the INTEGRAL satellite. The NRT regularly monitors the source while INTEGRAL with its good timing and imaging properties is able to  look for a possible high energy emission during our ToO observations.

I will kickstart the conference!

The Canadian CHIME telescope (the Canadian Hydrogen Intensity Mapping Experiment) is located at the Dominion Radio Astrophysical Observatory in British Columbia in Canada. Originally designed as a cosmology instrument, it was soon recognized that CHIME has the potential to simultaneously serve as a great radio telescope for Fast Radio Bursts (FRBs) and pulsar science. CHIME operates across a wide bandwidth of 400-800 MHz and has a collecting area and sensitivity equivalent to that of the world's largest radio telescopes. Our large instantaneous field-of-view of over 200 square degrees gives us high survey efficiency; and our real-time detection pipeline is capable of saving buffered complex voltage data to allow for a detail FRB burst characterization. In this talk, I will present the latest progress of the CHIME/FRB projects, including updates on our survey discoveries and highlights of interesting FRB events. 

Magnetars are young neutron stars with extremely strong magnetic fields of the order of 10^15 Gauss. The recent giant flare and Fast Radio Burst, ST200428a, by a galactic magnetar suggests that these events are generated by the dissipation of such magnetic field. These strong magnetic fields, in addition to fast rotation, are also invoked to explain extreme supernovae, hypernovae associated to long gamma-ray bursts and superluminous supernovae. However, the origin of these strong magnetic fields remains an open question and probably requires an amplification in the proto neutron star (PNS) during the first seconds of core-collapse supernova. I will present the recent numerical results on the two main scenarios of “in situ” amplification in a PNS : the convective dynamo and the magnetorotational instability.
I will then discuss the impact of the differences of magnetic field geometry and strength between these two scenarios and how observations may constrain them.

I will present recent detections, ongoing searches, and plans of future observations of FRB at low frequencies (≤200 MHz). Fast Radio Bursts start being detected with LOFAR in the range ~110-190 MHz. Ongoing searches are being conducted at still lower frequencies with the compact array NenuFAR (15-85 MHz), that require specific methods of analysis to deal with the heavy pollution and large dispersion in that range. Plans have been made for an all-sky detection with GRAND in the 100-200 MHz range, that require specific solutions due to the very diluted layout of this instrument. The objectives are to detect vast populations of FRB in the broad Field-of-View of these instruments, measure their LF spectra and possibly their turnovers to constrain models of generation, explore propagation effects and possibly help identify several populations within the FRBs.