CELEBI: The CRAFT Effortless Localisation and Enhanced Burst Inspection pipeline

被引：16

作者：

Scott, D. R. ^{[1
]}

Cho, H. ^{[2
]}

Day, C. K. ^{[3
]}

Deller, A. T. ^{[4
]}

Glowacki, M. ^{[1
]}

Gourdji, K. ^{[4
]}

Bannister, K. W. ^{[5
]}

Bera, A. ^{[1
]}

Bhandari, S. ^{[5
,6
,7
,8
]}

James, C. W. ^{[1
]}

Shannon, R. M. ^{[4
]}

机构：

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

[2] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

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

[4] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

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

[6] Netherlands Inst Radio Astron, ASTRON, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands

[7] Joint Inst VLBI ERIC, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands

[8] Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands

来源：

ASTRONOMY AND COMPUTING | 2023年 / 44卷

基金：

澳大利亚研究理事会; 荷兰研究理事会;

关键词：

Fast radio bursts; Radio interferometry; Astronomy software; RADIO-BURST; BRIGHT;

D O I：

10.1016/j.ascom.2023.100724

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Fast radio bursts (FRBs) are being detected with increasing regularity. However, their spontaneous and often once-off nature makes high-precision burst position and frequency-time structure measurements difficult without specialised real-time detection techniques and instrumentation. The Australian Square Kilometre Array Pathfinder (ASKAP) has been enabled by the Commensal Real-time ASKAP Fast Transients Collaboration (CRAFT) to detect FRBs in real-time and save raw antenna voltages containing FRB detections. We present the CRAFT Effortless Localisation and Enhanced Burst Inspection pipeline (CELEBI), an automated offline software pipeline that extends CRAFT's existing software to process ASKAP voltages in order to produce sub-arcsecond precision localisations and polarimetric data at time resolutions as fine as 3 ns of FRB events. We use Nextflow to link together Bash and Python code that performs software correlation, interferometric imaging, and beamforming, making use of common astronomical software packages.& COPY; 2023 Published by Elsevier B.V.

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