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Published January 2019 | Supplemental Material + Published + Accepted Version
Journal Article Open

A fast radio burst with a low dispersion measure

Abstract

Fast radio bursts (FRBs) are millisecond pulses of radio emission of seemingly extragalactic origin. More than 50 FRBs have now been detected, with only one seen to repeat. Here we present a new FRB discovery, FRB 110214, which was detected in the high-latitude portion of the High Time Resolution Universe South survey at the Parkes telescope. FRB 110214 has one of the lowest dispersion measures of any known FRB (DM = 168.8 ± 0.5 pc cm^(−3)), and was detected in two beams of the Parkes multibeam receiver. A triangulation of the burst origin on the sky identified three possible regions in the beam pattern where it may have originated, all in sidelobes of the primary detection beam. Depending on the true location of the burst the intrinsic fluence is estimated to fall in the range of 50–2000 Jy ms, making FRB 110214 one of the highest fluence FRBs detected with the Parkes telescope. No repeating pulses were seen in almost 100 h of follow-up observations with the Parkes telescope down to a limiting fluence of 0.3 Jy ms for a 2 ms pulse. Similar low DM, ultrabright FRBs may be detected in telescope sidelobes in the future, making careful modelling of multibeam instrument beam patterns of utmost importance for upcoming FRB surveys.

Additional Information

© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). Accepted 2018 October 24. Received 2018 October 24; in original form 2018 July 31. Published: 27 October 2018. The authors thank the anonymous referee for their comments and feedback which improved the quality of the manuscript. The Parkes radio telescope is part of the Australia Telescope National Facility which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. Parts of this research were conducted by the Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), through project number CE110001020 and the ARC Laureate Fellowship project FL150100148. This work was performed on the gSTAR national facility at Swinburne University of Technology. gSTAR is funded by Swinburne and the Australian Government's Education Investment Fund. EP and LCO acknowledge funding from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. 617199. SBS is supported by NSF award #1458952. BWS acknowledges funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 694745). This research made use of data obtained from the Chandra Source Catalogue, provided by the Chandra X-ray Center (CXC) as part of the Chandra Data Archive. This research made use of Astropy, a community-developed core Python package for Astronomy (Astropy Collaboration et al. 2013; Price-Whelan et al. 2018).

Attached Files

Published - sty2909.pdf

Accepted Version - 1810.10773.pdf

Supplemental Material - sty2909_supplemental_files.zip

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Additional details

Created:
August 19, 2023
Modified:
October 20, 2023