Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts

D. J.  Champion; E.  Petroff; M.  Kramer; Michael Keith; M. Bailes; E.D Barr; Samuel Bates; N.D.R. Bhat; M. Burgay; S.  Burke-Spolaor; C.M.L. Flynn; A.  Jameson; S.  Johnston; C. Ng; A.  Possenti; Benjamin Stappers; W.  van Straten; Dan Thornton; C.  Tiburzi; Andrew Lyne

doi:10.1093/mnrasl/slw069

Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts

D. J. Champion, E. Petroff, M. Kramer, Michael Keith, M. Bailes, E.D Barr, Samuel Bates, N.D.R. Bhat, M. Burgay, S. Burke-Spolaor, C.M.L. Flynn, A. Jameson , S. Johnston, C. Ng, A. Possenti, Benjamin Stappers, W. van Straten, Dan Thornton, C. Tiburzi, Andrew Lyne

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Abstract

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
−3+5×103
(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.

Original language	English
Pages (from-to)	L30-L34
Journal	Monthly Notices of the Royal Astronomical Society
Volume	460
Issue number	1
Early online date	11 Apr 2016
DOIs	https://doi.org/10.1093/mnrasl/slw069
Publication status	Published - 11 Apr 2016

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Champion, D. J., Petroff, E., Kramer, M., Keith, M., Bailes, M., Barr, E. D., Bates, S., Bhat, N. D. R., Burgay, M., Burke-Spolaor, S., Flynn, C. M. L., Jameson , A., Johnston, S., Ng, C., Possenti, A., Stappers, B., van Straten, W., Thornton, D., Tiburzi, C., & Lyne, A. (2016). Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts. Monthly Notices of the Royal Astronomical Society, 460(1), L30-L34. Advance online publication. https://doi.org/10.1093/mnrasl/slw069

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title = "Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts",

abstract = "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+5−3×103−3+5×103(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.",

author = "Champion, {D. J.} and E. Petroff and M. Kramer and Michael Keith and M. Bailes and E.D Barr and Samuel Bates and N.D.R. Bhat and M. Burgay and S. Burke-Spolaor and C.M.L. Flynn and A. Jameson and S. Johnston and C. Ng and A. Possenti and Benjamin Stappers and {van Straten}, W. and Dan Thornton and C. Tiburzi and Andrew Lyne",

year = "2016",

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day = "11",

doi = "10.1093/mnrasl/slw069",

language = "English",

volume = "460",

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Champion, DJ, Petroff, E, Kramer, M, Keith, M, Bailes, M, Barr, ED, Bates, S, Bhat, NDR, Burgay, M, Burke-Spolaor, S, Flynn, CML, Jameson , A, Johnston, S, Ng, C, Possenti, A, Stappers, B, van Straten, W, Thornton, D, Tiburzi, C & Lyne, A 2016, 'Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts', Monthly Notices of the Royal Astronomical Society, vol. 460, no. 1, pp. L30-L34. https://doi.org/10.1093/mnrasl/slw069

TY - JOUR

T1 - Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts

AU - Champion, D. J.

AU - Petroff, E.

AU - Kramer, M.

AU - Keith, Michael

AU - Bailes, M.

AU - Barr, E.D

AU - Bates, Samuel

AU - Bhat, N.D.R.

AU - Burgay, M.

AU - Burke-Spolaor, S.

AU - Flynn, C.M.L.

AU - Jameson , A.

AU - Johnston, S.

AU - Ng, C.

AU - Possenti, A.

AU - Stappers, Benjamin

AU - van Straten, W.

AU - Thornton, Dan

AU - Tiburzi, C.

AU - Lyne, Andrew

PY - 2016/4/11

Y1 - 2016/4/11

N2 - 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+5−3×103−3+5×103(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.

AB - 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+5−3×103−3+5×103(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.

U2 - 10.1093/mnrasl/slw069

DO - 10.1093/mnrasl/slw069

M3 - Article

SN - 1365-2966

VL - 460

SP - L30-L34

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Five new Fast Radio Bursts from the HTRU high latitude survey at Parkes: first evidence for two-component bursts

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