A polarized fast radio burst at low Galactic latitude

被引：80

作者：

Petroff, E. ^{[1
,2
,3
,4
]}

Burke-Spolaor, S. ^{[5
,6
,7
]}

Keane, E. F. ^{[2
,8
]}

McLaughlin, M. A. ^{[9
]}

Miller, R. ^{[9
]}

Andreoni, I. ^{[2
,4
,10
]}

Bailes, M. ^{[2
,4
]}

Barr, E. D. ^{[2
,4
,11
]}

Bernard, S. R. ^{[2
,4
,12
]}

Bhandari, S. ^{[2
,4
]}

Bhat, N. D. R. ^{[4
,13
]}

Burgay, M. ^{[14
]}

Caleb, M. ^{[3
,4
,15
]}

Champion, D. ^{[11
]}

Chandra, P. ^{[16
]}

Cooke, J. ^{[2
]}

Dhillon, V. S. ^{[17
,18
]}

Farnes, J. S. ^{[19
]}

Hardy, L. K. ^{[17
]}

Jaroenjittichai, P. ^{[20
]}

Johnston, S. ^{[3
]}

Kasliwal, M. ^{[21
]}

Kramer, M. ^{[11
,22
]}

Littlefair, S. P. ^{[17
]}

Macquart, J. P. ^{[13
]}

Mickaliger, M. ^{[22
]}

Possenti, A. ^{[14
]}

Pritchard, T. ^{[2
]}

Ravi, V. ^{[21
]}

Rest, A. ^{[23
]}

Rowlinson, A. ^{[1
,24
]}

Sawangwit, U. ^{[20
]}

Stappers, B. ^{[22
]}

Sullivan, M. ^{[25
]}

Tiburzi, C. ^{[26
]}

van Straten, W. ^{[2
,27
]}

Albert, A. ^{[28
]}

Andre, M. ^{[29
]}

Anghinolfi, M. ^{[30
]}

Anton, G. ^{[31
]}

Ardid, M. ^{[32
]}

Aubert, J. -J. ^{[33
]}

Avgitas, T. ^{[34
]}

Baret, B. ^{[34
]}

Barrios-Marti, J. ^{[35
]}

Basa, S. ^{[36
]}

Bertin, V. ^{[33
]}

Biagi, S. ^{[37
]}

Borrnuth, R. ^{[38
,39
]}

Bourret, S. ^{[34
]}

机构：

[1] Netherlands Inst Radio Astron, ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands

[2] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Mail H30,POB 218, Hawthorn, Vic 3122, Australia

[3] Australia Telescope Natl Facil, CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia

[4] ARC Ctr Excellence All Sky Astrophys CAASTRO, Sydney, NSW, Australia

[5] Natl Radio Astron Observ, 1003 Lopezville Rd, Socorro, NM 87801 USA

[6] W Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA

[7] Univ Virginia, Ctr Gravit Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA

[8] SKA Org, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England

[9] W Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA

[10] Australian Astron Observ, POB 915, N Ryde, NSW 1670, Australia

[11] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany

[12] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[13] Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia

[14] INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy

[15] Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia

[16] Tata Inst Fundamental Res, Natl Ctr Radio Astrophys, Pune Univ Campus, Pune 411007, Maharashtra, India

[17] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[18] Inst Astrofis Canarias, E-38205 Tenerife, Spain

[19] Radboud Univ Nijmegen, Dept Astrophys IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands

[20] Natl Astron Res Inst Thailand, 191 Siriphanich Bldg,Huay Kaew Rd, Chiang Mai 50200, Thailand

[21] CALTECH, Cahill Ctr Astron & Astrophys, MC 249-17, Pasadena, CA 91125 USA

[22] Univ Manchester, Jodrell Bank, Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, England

[23] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[24] Univ Amsterdam, Aston Pannekoek Inst, Postbus NL 94249, NL-1090 GE Amsterdam, Netherlands

[25] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[26] Univ Bielefeld, Fak Phys, Postfach 100131, D-33501 Bielefeld, Germany

[27] Auckland Univ Technol, Inst Radio Astron & Space Res, Private Bag 92006, Auckland 1142, New Zealand

[28] Univ Haute Alsace, GRPHE, Inst Univ Technol Colmar, 34 Rue Grillenbreit BP F 68008, F-68008 Colmar, France

[29] Tech Univ Catalonia, Lab Appl Bioacoust, Rambla Exposicio, E-08800 Barcelona, Spain

[30] Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy

[31] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany

[32] Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGI, C Paranimf 1, E-46730 Gandia, Spain

[33] Aix Marseille Univ, CNRS IN2P3, CPPM UMR 7346, F-13288 Marseille, France

[34] Univ Paris Diderot, APC, CNRS IN2P3, Observ Paris,CEA IRFU,Sorbonne Paris Cite, F-75205 Paris, France

[35] Univ Valencia, CSIC, IFIC Inst Fis Corpuscular, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain

[36] Pole Etoile Site Chateau Gombert, LAM, Rue Frederic Joliot Curie 38, F-13388 Marseille 13, France

[37] Ist Nazl Fis Nucl, LNS, Via S Sofia 62, I-95123 Catania, Italy

[38] Nikhef, Sci Pk, Amsterdam, Netherlands

[39] Leiden Univ, Huygens Karnerlingh Onnes Lab, Leiden, Netherlands

[40] Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro 2, I-00185 Rome, Italy

[41] Univ Roma La Sapienza, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy

[42] Inst Space Sci, RO-077125 Bucharest, Magurele, Romania

[43] Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[44] Ist Nazl Fis Nucl, Sez Bari, Via E Orabona 4, I-70126 Bari, Italy

[45] UCA, Geoazur, CNRS, Observ Cote Azur,IRD, Sophia Antipolis, France

[46] Univ Paris 11, F-91405 Orsay, France

[47] Univ Mohammed 1, Lab Phys Matter & Radiat, BP 7I7, Oujda 6000, Morocco

[48] Univ Wurzburg, Inst Theoret Phys & Astrophys, Emil Fischer Str 31, D-97074 Wurzburg, Germany

[49] Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[50] Univ Blaise Pascal, Clermont Univ, Phys Corpusculaire Lab, CNRS IN2P3, BP 10448, F-63000 Clermont Ferrand, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2017年 / 469卷 / 04期

基金：

英国科学技术设施理事会; 美国国家科学基金会; 欧洲研究理事会; 澳大利亚研究理事会; 奥地利科学基金会; 新加坡国家研究基金会;

关键词：

polarization; methods: data analysis; surveys; ISM: structure;

D O I：

10.1093/mnras/stx1098

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on the discovery of a new fast radio burst (FRB), FRB 150215, with the Parkes radio telescope on 2015 February 15. The burst was detected in real time with a dispersion measure (DM) of 1105.6 +/- 0.8 pc cm(-3), a pulse duration of 2.8(-0.5)(+1.2) ms, and a measured peak flux density assuming that the burst was at beam centre of 0.7(-0.1)(+0.2) Jy. The FRB originated at a Galactic longitude and latitude of 24.66 degrees, 5.28 degrees and 25 degrees away from the Galactic Center. The burst was found to be 43 +/- 5 per cent linearly polarized with a rotation measure (RM) in the range -9 < RM < 12 rad m(-2) (95 per cent confidence level), consistent with zero. The burst was followed up with 11 telescopes to search for radio, optical, X-ray, gamma-ray and neutrino emission. Neither transient nor variable emission was found to be associated with the burst and no repeat pulses have been observed in 17.25 h of observing. The sightline to the burst is close to the Galactic plane and the observed physical properties of FRB 150215 demonstrate the existence of sight lines of anomalously low RM for a given electron column density. The Galactic RM foreground may approach a null value due to magnetic field reversals along the line of sight, a decreased total electron column density from the Milky Way, or some combination of these effects. A lower Galactic DM contribution might explain why this burst was detectable whereas previous searches at low latitude have had lower detection rates than those out of the plane.

引用

页码：4465 / 4482

页数：18

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