Four new fast radio bursts discovered in the Parkes 70-cm pulsar survey archive

被引:4
作者
Crawford, F. [1 ]
Hisano, S. [2 ]
Golden, M. [1 ]
Kikunaga, T. [2 ]
Laity, A. [1 ,3 ]
Zoeller, D. [1 ]
机构
[1] Franklin & Marshall Coll, Dept Phys & Astron, POB 3003, Lancaster, PA 17604 USA
[2] Kumamoto Univ, Grad Sch Sci & Technol, Kumamoto 8608555, Japan
[3] Millersville Univ Pennsylvania, Dept Phys, POB 1002, Millersville, PA 17551 USA
基金
日本学术振兴会; 美国国家科学基金会;
关键词
fast radio bursts; SEARCH;
D O I
10.1093/mnras/stac2101
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present four new fast radio bursts discovered in a search of the Parkes 70-cm pulsar survey data archive for dispersed single pulses and bursts. We searched dispersion measures (DMs) ranging between 0 and 5000 pc cm(-3) with the HEIMDALL and FETCH detection and classification algorithms. All four of the fast radio bursts (FRBs) discovered have significantly larger widths (>50 ms) than almost all of the FRBs detected and catalogued to date. The large pulse widths are not dominated by interstellar scattering or dispersive smearing within channels. One of the FRBs has a DM of 3338 pc cm(3), the largest measured for any FRB to date. These are also the first FRBs detected by any radio telescope so far, predating the Lorimer Burst by almost a decade. Our results suggest that pulsar survey archives remain important sources of previously undetected FRBs and that searches for FRBs on time-scales extending beyond similar to 100 ms may reveal the presence of a larger population of wide-pulse FRBs.
引用
收藏
页码:3698 / 3702
页数:5
相关论文
共 27 条
[1]   FETCH: A deep-learning based classifier for fast transient classification [J].
Agarwal, Devansh ;
Aggarwal, Kshitij ;
Burke-Spolaor, Sarah ;
Lorimer, Duncan R. ;
Garver-Daniels, Nathaniel .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 497 (02) :1661-1674
[2]  
Amiri M., 2021, ASTROPHYS J SUPPL S, V257, P59, DOI DOI 10.3847/1538-4365/AC33AB
[3]  
Barsdell B. R., 2012, PhD thesis
[4]  
Cordes J. M., 2002, ARXIV
[5]   The Parkes southern pulsar survey - III. Timing of long-period pulsars [J].
D'Amico, N ;
Stappers, BW ;
Bailes, M ;
Martin, CE ;
Bell, JE ;
Lyne, AG ;
Manchester, RN .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 297 (01) :28-40
[6]   Search for Fast Radio Bursts in the Direction of the Galaxies M31 and M33 [J].
Fedorova, V. A. ;
Rodin, A. E. .
ASTRONOMY REPORTS, 2019, 63 (11) :877-890
[7]   The z-DM distribution of fast radio bursts [J].
James, C. W. ;
Prochaska, J. X. ;
Macquart, J. -P. ;
North-Hickey, F. O. ;
Bannister, K. W. ;
Dunning, A. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 509 (04) :4775-4802
[8]  
Kaplan D, 2022, PULSAR SURVEY SCRAPE, DOI DOI 10.5281/ZENODO.6390905
[9]   Fast radio bursts: search sensitivities and completeness [J].
Keane, E. F. ;
Petroff, E. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 447 (03) :2852-2856
[10]   SCATTER BROADENING MEASUREMENTS OF 124 PULSARS AT 327 MHZ [J].
Krishnakumar, M. A. ;
Mitra, D. ;
Naidu, A. ;
Joshi, B. C. ;
Manoharan, P. K. .
ASTROPHYSICAL JOURNAL, 2015, 804 (01)