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| Name | EVN Seminar: Pin-pointing the positions of repeating Fast Radio Bursts |
| Video Uploader | Video From JIVE and the EVN |
| Upload Date | This Video Uploaded At 20-10-2020 03:03:15 |
| Video Discription | Series of online seminars “The sharpest view of the radio Universe: VLBI – Connecting Astronomers Worldwide”. Full information at https://www.evlbi.org/evn-seminars. In this second seminar, our speaker, Kenzie Nimmo (ASTRON & University of Amsterdam) will talk about “Pin-pointing the positions of repeating Fast Radio Bursts”. Abstract: Fast radio bursts (FRBs) are bright pulses of coherent radio emission with durations of only a few milliseconds, and unknown extragalactic origin. Some FRBs have been observed to repeat, whereas others appear as one-off events. Currently it still remains unclear whether all FRB sources have the ability to repeat, or if there are multiple populations with different physical mechanisms. Recently, the Galactic magnetar SGR 1935+2154 emitted a very bright radio burst (orders of magnitude brighter than typical Galactic radio bursts from pulsars/magnetars) unveiling a bridge between Galactic sources of radio bursts and FRBs. With the European VLBI Network (EVN) we can precisely localise FRBs to milli-arcsecond precision, identifying not only the host galaxy, but the region within the host that the bursts are originating from. This will help in understanding the FRB progenitor(s) and how FRBs link to Galactic sources. In addition to the real-time correlation observing mode (e-EVN), baseband data can be buffered to study fine time and frequency structures of the bursts, as well as their polarisation properties. In this talk I will discuss our approach to localising repeating FRBs using the EVN, present the localisation of a second repeater, FRB 180619.J0158+65, and present recent results on SGR 1935+2154. |
| Category | Science & Technology |
| Tags | radio | VLBI | EVN | astronomy | neutrinos | IceCube | Yuri Kovalev |
