Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts
The detection of five new fast radio bursts (FRBs) found in the 1.4-GHz High Time Resolution Universe high-latitude survey at Parkes, is presented. The rate implied is 7+5-3 × 103 (95 per cent) FRBs sky-1 d-1 above a fluence of 0.13 Jy ms for an FRB of 0.128 ms duration to 1.5 Jy ms for 16 ms durati...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing Ltd.
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/34022 |
| _version_ | 1848754108546154496 |
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| author | Champion, D. Petroff, E. Kramer, M. Keith, M. Bailes, M. Barr, E. Bates, S. Bhat, Ramesh Burgay, M. Burke-Spolaor, S. Flynn, M. Jameson, A. Johnston, S. Ng, C. Levin, L. Possenti, A. Stappers, B. van Straten, W. Thornton, D. Tiburzi, C. Lyne, A. |
| author_facet | Champion, D. Petroff, E. Kramer, M. Keith, M. Bailes, M. Barr, E. Bates, S. Bhat, Ramesh Burgay, M. Burke-Spolaor, S. Flynn, M. Jameson, A. Johnston, S. Ng, C. Levin, L. Possenti, A. Stappers, B. van Straten, W. Thornton, D. Tiburzi, C. Lyne, A. |
| author_sort | Champion, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The detection of five new fast radio bursts (FRBs) found in the 1.4-GHz High Time Resolution Universe high-latitude survey at Parkes, is presented. The rate implied is 7+5-3 × 103 (95 per cent) FRBs sky-1 d-1 above a fluence of 0.13 Jy ms for an FRB of 0.128 ms duration to 1.5 Jy ms for 16 ms duration. One of these FRBs has a two-component profile, in which each component is similar to the known population of single component FRBs and the two components are separated by 2.4 ± 0.4 ms. All the FRB components appear to be unresolved following deconvolution with a scattering tail and accounting for intrachannel smearing. The two-component burst, FRB 121002, also has the highest dispersion measure (1629 pc cm-3) of any FRB to-date. Many of the proposed models to explain FRBs use a single high-energy event involving compact objects (such as neutron-star mergers) and therefore cannot easily explain a two-component FRB. Models that are based on extreme versions of flaring, pulsing, or orbital events, however, could produce multiple component profiles. The compatibility of these models and the FRB rate implied by these detections is discussed. |
| first_indexed | 2025-11-14T08:35:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-34022 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:35:10Z |
| publishDate | 2016 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-340222017-09-13T15:08:55Z Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts Champion, D. Petroff, E. Kramer, M. Keith, M. Bailes, M. Barr, E. Bates, S. Bhat, Ramesh Burgay, M. Burke-Spolaor, S. Flynn, M. Jameson, A. Johnston, S. Ng, C. Levin, L. Possenti, A. Stappers, B. van Straten, W. Thornton, D. Tiburzi, C. Lyne, A. The detection of five new fast radio bursts (FRBs) found in the 1.4-GHz High Time Resolution Universe high-latitude survey at Parkes, is presented. The rate implied is 7+5-3 × 103 (95 per cent) FRBs sky-1 d-1 above a fluence of 0.13 Jy ms for an FRB of 0.128 ms duration to 1.5 Jy ms for 16 ms duration. One of these FRBs has a two-component profile, in which each component is similar to the known population of single component FRBs and the two components are separated by 2.4 ± 0.4 ms. All the FRB components appear to be unresolved following deconvolution with a scattering tail and accounting for intrachannel smearing. The two-component burst, FRB 121002, also has the highest dispersion measure (1629 pc cm-3) of any FRB to-date. Many of the proposed models to explain FRBs use a single high-energy event involving compact objects (such as neutron-star mergers) and therefore cannot easily explain a two-component FRB. Models that are based on extreme versions of flaring, pulsing, or orbital events, however, could produce multiple component profiles. The compatibility of these models and the FRB rate implied by these detections is discussed. 2016 Journal Article http://hdl.handle.net/20.500.11937/34022 10.1093/mnrasl/slw069 Wiley-Blackwell Publishing Ltd. fulltext |
| spellingShingle | Champion, D. Petroff, E. Kramer, M. Keith, M. Bailes, M. Barr, E. Bates, S. Bhat, Ramesh Burgay, M. Burke-Spolaor, S. Flynn, M. Jameson, A. Johnston, S. Ng, C. Levin, L. Possenti, A. Stappers, B. van Straten, W. Thornton, D. Tiburzi, C. Lyne, A. Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts |
| title | Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts |
| title_full | Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts |
| title_fullStr | Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts |
| title_full_unstemmed | Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts |
| title_short | Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts |
| title_sort | five new fast radio bursts from the htru high-latitude survey at parkes: first evidence for two-component bursts |
| url | http://hdl.handle.net/20.500.11937/34022 |