FAST RADIO BURST DISCOVERED IN THE ARECIBO PULSAR ALFA SURVEY

被引：412

作者：

Spitler, L. G. ^{[1
]}

Cordes, J. M. ^{[2
]}

Hessels, J. W. T. ^{[3
,4
]}

Lorimer, D. R. ^{[5
]}

McLaughlin, M. A. ^{[5
]}

Chatterjee, S. ^{[2
]}

Crawford, F. ^{[6
]}

Deneva, J. S. ^{[7
]}

Kaspi, V. M. ^{[8
]}

Wharton, R. S. ^{[2
]}

Allen, B. ^{[9
,10
,11
]}

Bogdanov, S. ^{[12
]}

Brazier, A. ^{[2
]}

Camilo, F. ^{[12
,13
]}

Freire, P. C. C. ^{[1
]}

Jenet, F. A. ^{[14
]}

Karako-Argaman, C. ^{[8
]}

Knispel, B. ^{[10
,11
]}

Lazarus, P. ^{[1
]}

Lee, K. J. ^{[1
,15
]}

van Leeuwen, J. ^{[3
,4
]}

Lynch, R. ^{[8
]}

Ransom, S. M. ^{[16
]}

Scholz, P. ^{[8
]}

Siemens, X. ^{[9
]}

Stairs, I. H. ^{[17
]}

Stovall, K. ^{[18
]}

Swiggum, J. K. ^{[5
]}

Venkataraman, A. ^{[13
]}

Zhu, W. W. ^{[17
]}

Aulbert, C. ^{[11
]}

Fehrmann, H. ^{[11
]}

机构：

[1] Max Planck Inst Radioastron, D-53121 Bonn, Germany

[2] Cornell Univ, Dept Astron & Space Sci, Ithaca, NY 14853 USA

[3] Netherlands Inst Radio Astron, ASTRON, NL-7990 AA Dwingeloo, Netherlands

[4] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 XH Amsterdam, Netherlands

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

[6] Franklin & Marshall Coll, Dept Phys & Astron, Lancaster, PA 17604 USA

[7] Naval Res Lab, Washington, DC 20375 USA

[8] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[9] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA

[10] Leibniz Univ Hannover, D-30167 Hannover, Germany

[11] Max Planck Inst Gravitat Phys, D-30167 Hannover, Germany

[12] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[13] Arecibo Observ, Arecibo, PR 00612 USA

[14] Univ Texas Brownsville, Ctr Gravitat Wave Astron, Brownsville, TX 78520 USA

[15] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China

[16] NRAO, Charlottesville, VA 22903 USA

[17] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[18] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

来源：

ASTROPHYSICAL JOURNAL | 2014年 / 790卷 / 02期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会; 欧洲研究理事会;

关键词：

pulsars:; general; NEUTRON-STARS; REIONIZATION HISTORY; DISPERSION MEASURE; TRANSIENTS; ORIGIN; ENVIRONMENT; SEARCHES; CATALOG;

D O I：

10.1088/0004-637X/790/2/101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent work has exploited pulsar survey data to identify temporally isolated, millisecond-duration radio bursts with large dispersion measures (DMs). These bursts have been interpreted as arising from a population of extragalactic sources, in which case they would provide unprecedented opportunities for probing the intergalactic medium; they may also be linked to new source classes. Until now, however, all so-called fast radio bursts (FRBs) have been detected with the Parkes radio telescope and its 13-beam receiver, casting some concern about the astrophysical nature of these signals. Here we present FRB 121102, the first FRB discovery from a geographic location other than Parkes. FRB 121102 was found in the Galactic anti-center region in the 1.4 GHz Pulsar Arecibo L-band Feed Array (ALFA) survey with the Arecibo Observatory with a DM = 557.4 +/- 2.0 pc cm(-3), pulse width of 3.0 +/- 0.5 ms, and no evidence of interstellar scattering. The observed delay of the signal arrival time with frequency agrees precisely with the expectation of dispersion through an ionized medium. Despite its low Galactic latitude (b = -0 degrees.2), the burst has three times the maximum Galactic DM expected along this particular line of sight, suggesting an extragalactic origin. A peculiar aspect of the signal is an inverted spectrum; we interpret this as a consequence of being detected in a sidelobe of the ALFA receiver. FRB 121102's brightness, duration, and the inferred event rate are all consistent with the properties of the previously detected Parkes bursts.

引用

页数：9

共 40 条

[1] THE WISE CATALOG OF GALACTIC H II REGIONS [J].