The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230

M. Caleb; E. F. Keane; W. van Straten; M. Kramer; J. P. Macquart; M. Bailes; E. D. Barr; N. D.R. Bhat; S. Bhandari; M. Burgay; W. Farah; A. Jameson; F. Jankowski; S. Johnston; E. Petroff; A. Possenti; B. W. Stappers; C. Tiburzi; V. Venkatraman Krishnan

doi:10.1093/mnras/sty1137

The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230

M. Caleb^*, E. F. Keane, W. van Straten, M. Kramer, J. P. Macquart, M. Bailes, E. D. Barr, N. D.R. Bhat, S. Bhandari, M. Burgay, W. Farah, A. Jameson, F. Jankowski, S. Johnston, E. Petroff, A. Possenti, B. W. Stappers, C. Tiburzi, V. Venkatraman Krishnan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We report on the polarization properties of two fast radio bursts (FRBs): 151230 and 160102 discovered in the SUrvey for Pulsars and Extragalactic Radio Bursts (SUPERB) at the Parkes Radio Telescope. FRB 151230 is observed to be 6 ± 11 per cent circularly polarized and 35 ± 13 per cent linearly polarized with a rotation measure (RM) consistent with zero. Conversely, FRB160102 is observed to have a circular polarization fraction of 30±11 per cent, linear polarization fraction of 84 ± 15 per cent for RM = -221(6) radm^-2, and the highest measured dispersion measure (2596.1±0.3 pc cm^-3) for an FRB to date.We examine possible progenitor models for FRB 160102 in extragalactic, non-cosmological and cosmological scenarios. After accounting for the Galactic foreground contribution, we estimate the intrinsic RM to be -256(9) rad m^-2 in the low-redshift case and ~-2.4×10² rad m^-2 in the highredshift case. We assess the relative likeliness of these scenarios and how each can be tested. We also place constraints on the scattering measure and study the impact of scattering on the signal's polarization position angle.

Original language	English
Pages (from-to)	2046-2055
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	478
Issue number	2
DOIs	https://doi.org/10.1093/mnras/sty1137
Publication status	Published - 1 Aug 2018

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Caleb, M., Keane, E. F., van Straten, W., Kramer, M., Macquart, J. P., Bailes, M., Barr, E. D., Bhat, N. D. R., Bhandari, S., Burgay, M., Farah, W., Jameson, A., Jankowski, F., Johnston, S., Petroff, E., Possenti, A., Stappers, B. W., Tiburzi, C., & Venkatraman Krishnan, V. (2018). The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230. Monthly Notices of the Royal Astronomical Society, 478(2), 2046-2055. https://doi.org/10.1093/mnras/sty1137

@article{071e68d3697345c8be52db49482058f1,

title = "The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230",

abstract = "We report on the polarization properties of two fast radio bursts (FRBs): 151230 and 160102 discovered in the SUrvey for Pulsars and Extragalactic Radio Bursts (SUPERB) at the Parkes Radio Telescope. FRB 151230 is observed to be 6 ± 11 per cent circularly polarized and 35 ± 13 per cent linearly polarized with a rotation measure (RM) consistent with zero. Conversely, FRB160102 is observed to have a circular polarization fraction of 30±11 per cent, linear polarization fraction of 84 ± 15 per cent for RM = -221(6) radm-2, and the highest measured dispersion measure (2596.1±0.3 pc cm-3) for an FRB to date.We examine possible progenitor models for FRB 160102 in extragalactic, non-cosmological and cosmological scenarios. After accounting for the Galactic foreground contribution, we estimate the intrinsic RM to be -256(9) rad m-2 in the low-redshift case and ~-2.4×102 rad m-2 in the highredshift case. We assess the relative likeliness of these scenarios and how each can be tested. We also place constraints on the scattering measure and study the impact of scattering on the signal's polarization position angle.",

keywords = "Intergalactic medium, Magnetic fields, Methods: data analysis, Polarization, Surveys",

author = "M. Caleb and Keane, {E. F.} and {van Straten}, W. and M. Kramer and Macquart, {J. P.} and M. Bailes and Barr, {E. D.} and Bhat, {N. D.R.} and S. Bhandari and M. Burgay and W. Farah and A. Jameson and F. Jankowski and S. Johnston and E. Petroff and A. Possenti and Stappers, {B. W.} and C. Tiburzi and {Venkatraman Krishnan}, V.",

note = "Publisher Copyright: {\textcopyright} 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.",

year = "2018",

month = aug,

day = "1",

doi = "10.1093/mnras/sty1137",

language = "English",

volume = "478",

pages = "2046--2055",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press ",

number = "2",

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Caleb, M, Keane, EF, van Straten, W, Kramer, M, Macquart, JP, Bailes, M, Barr, ED, Bhat, NDR, Bhandari, S, Burgay, M, Farah, W, Jameson, A, Jankowski, F, Johnston, S, Petroff, E, Possenti, A, Stappers, BW, Tiburzi, C & Venkatraman Krishnan, V 2018, 'The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230', Monthly Notices of the Royal Astronomical Society, vol. 478, no. 2, pp. 2046-2055. https://doi.org/10.1093/mnras/sty1137

TY - JOUR

T1 - The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230

AU - Caleb, M.

AU - Keane, E. F.

AU - van Straten, W.

AU - Kramer, M.

AU - Macquart, J. P.

AU - Bailes, M.

AU - Barr, E. D.

AU - Bhat, N. D.R.

AU - Bhandari, S.

AU - Burgay, M.

AU - Farah, W.

AU - Jameson, A.

AU - Jankowski, F.

AU - Johnston, S.

AU - Petroff, E.

AU - Possenti, A.

AU - Stappers, B. W.

AU - Tiburzi, C.

AU - Venkatraman Krishnan, V.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - We report on the polarization properties of two fast radio bursts (FRBs): 151230 and 160102 discovered in the SUrvey for Pulsars and Extragalactic Radio Bursts (SUPERB) at the Parkes Radio Telescope. FRB 151230 is observed to be 6 ± 11 per cent circularly polarized and 35 ± 13 per cent linearly polarized with a rotation measure (RM) consistent with zero. Conversely, FRB160102 is observed to have a circular polarization fraction of 30±11 per cent, linear polarization fraction of 84 ± 15 per cent for RM = -221(6) radm-2, and the highest measured dispersion measure (2596.1±0.3 pc cm-3) for an FRB to date.We examine possible progenitor models for FRB 160102 in extragalactic, non-cosmological and cosmological scenarios. After accounting for the Galactic foreground contribution, we estimate the intrinsic RM to be -256(9) rad m-2 in the low-redshift case and ~-2.4×102 rad m-2 in the highredshift case. We assess the relative likeliness of these scenarios and how each can be tested. We also place constraints on the scattering measure and study the impact of scattering on the signal's polarization position angle.

AB - We report on the polarization properties of two fast radio bursts (FRBs): 151230 and 160102 discovered in the SUrvey for Pulsars and Extragalactic Radio Bursts (SUPERB) at the Parkes Radio Telescope. FRB 151230 is observed to be 6 ± 11 per cent circularly polarized and 35 ± 13 per cent linearly polarized with a rotation measure (RM) consistent with zero. Conversely, FRB160102 is observed to have a circular polarization fraction of 30±11 per cent, linear polarization fraction of 84 ± 15 per cent for RM = -221(6) radm-2, and the highest measured dispersion measure (2596.1±0.3 pc cm-3) for an FRB to date.We examine possible progenitor models for FRB 160102 in extragalactic, non-cosmological and cosmological scenarios. After accounting for the Galactic foreground contribution, we estimate the intrinsic RM to be -256(9) rad m-2 in the low-redshift case and ~-2.4×102 rad m-2 in the highredshift case. We assess the relative likeliness of these scenarios and how each can be tested. We also place constraints on the scattering measure and study the impact of scattering on the signal's polarization position angle.

KW - Intergalactic medium

KW - Magnetic fields

KW - Methods: data analysis

KW - Polarization

KW - Surveys

UR - http://www.scopus.com/inward/record.url?scp=85048889785&partnerID=8YFLogxK

U2 - 10.1093/mnras/sty1137

DO - 10.1093/mnras/sty1137

M3 - Article

SN - 0035-8711

VL - 478

SP - 2046

EP - 2055

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

The SUrvey for Pulsars and Extragalactic Radio Bursts - III. Polarization properties of FRBs 160102 and 151230

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