PRECISE localizations of repeating Fast Radio Bursts
B. Marcote, F. Kirsten, J. W. T. Hessels, K. Nimmo, Z. Paragi

TL;DR
The paper discusses the PRECISE project, which uses the EVN to achieve milliarcsecond localizations of repeating FRBs, revealing diverse environments and advancing understanding of their origins.
Contribution
It presents the latest localizations of repeating FRBs by the PRECISE project, demonstrating the variety of their host environments and challenging existing models.
Findings
Localized multiple repeating FRBs with EVN
Discovered diverse host galaxy environments
Challenged current FRB origin theories
Abstract
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 unveil their host galaxies and local environments -- and thus shed light on the physical processes that led to the burst production. However, this has only been achieved for a few FRBs to date. The European VLBI Network (EVN) is currently the only instrument capable of localizing FRBs down to the milliarcsecond level. This level of precision was critical to associate the first localized FRB, 20121102A, to a star-forming region in a low-metallicity dwarf galaxy and physically related it to a compact persistent radio source. Analogously, a second repeating FRB, 20180916B, was found to just outside the edge of a…
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Taxonomy
TopicsNon-Invasive Vital Sign Monitoring · Pulsars and Gravitational Waves Research · GNSS positioning and interference
