F. Kirsten

A HyperFlash and ÉCLAT view of the local environment and energetics of the repeating FRB 20240619D

O. S. Ould-Boukattine, A J Cooper, J. W. T. Hessels, D. M. Hewitt et autres

ABSTRACT Time-variable propagation effects provide a window into the local plasma environments of repeating fast radio burst (FRB) sources. Here we report high-cadence observations of FRB 20240619D, as part of the HyperFlash and ÉCLAT programmes. We observed for 500 h and detected …

sk, nl, gb, us, ca, fr, pl, ru, au (code pays fourni par la source)

A probe of the maximum energetics of fast radio bursts through a prolific repeating source

O. S. Ould-Boukattine, P. Chawla, J. W. T. Hessels, A J Cooper et autres

ABSTRACT Fast radio bursts (FRBs) are sufficiently energetic to be detectable from luminosity distances up to at least seven billion parsecs (redshift $z > 1$). Probing the maximum energies and luminosities of FRBs constrains their emission mechanism and cosmological population. Here, we …

sk, nl, us, ca, gb, az, pl, au (code pays fourni par la source)

A burst storm from the repeating FRB 20200120E in an M81 globular cluster

K. Nimmo, J. W. T. Hessels, M. P. Snelders, R. Karuppusamy et autres

The repeating fast radio burst (FRB) source FRB 20200120E is exceptional because of its proximity and association with a globular cluster. Here we report $60$ bursts detected with the Effelsberg telescope at 1.4 GHz. We observe large variations in the burst rate, …

PRECISE localizations of repeating Fast Radio Bursts

B. Marcote, F. Kirsten, J. W. T. Hessels, K. Nimmo et autres

Fast Radio Bursts (FRBs) are extremely luminous and brief signals (with duration of milliseconds or even shorter) of extragalactic origin. Despite the fact that hundreds of FRBs have been discovered to date, their nature still remains unclear. Precise localizations of FRBs can …