English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We report the detection of a dispersed Fast Radio Burst (FRB) in archivalintermediate-latitude Parkes Radio Telescope data. The burst appears to be ofthe same physical origin as the four purported extragalactic FRBs reported byThornton et al. (2013). This burst's arrival time precedes the Thornton etal.~bursts by ten years. We consider that this survey, and many other archivallow-latitude (|gb|<30deg) pulsar surveys, have been searched for FRBs butproduced fewer detections than the comparatively brief Thornton et al.~search.Such a rate dependence on Galactic position could provide critical supportingevidence for an extragalactic origin for FRBs. To test this, we form ananalytic expression to account for Galactic position and survey setup in FRBrate predictions. Employing a sky temperature, scattering, and dispersion modelof the Milky Way, we compute the expected number of FRBs if they areisotropically distributed on the sky w.r.t. Galactic position (i.e. local), andif they are of extragalactic origin. We demonstrate that the relative detectionrates reject a local origin with a confidence of 99.96% (~3.6 sigma). Theextragalactic predictions provide a better agreement, however are still strongdiscrepancies with the low-latitude detection rate at a confidence of 99.69%(~2.9 sigma). However, for the extragalactic population, the differences inpredicted vs.~detected population may be accounted for by a number of factors,which we discuss.

The Galactic Position Dependence of Fast Radio Bursts and the Discovery of FRB 011025