Institutional Repository of Radio Astronomy Research Laboratory
| Fast radio burst detection in the presence of coloured noise | |
Zhang, C. F.1,2; Xu, J. W.1,2; Men, Y. P.1,2,3; Deng, X. H.4; Xu, Heng1,2; Jiang, J. C.1,2; Wang, B. J.1,2; Lee, K. J.1; Li, J.5 ; Yuan, J. P.5; Liu, Z. Y.5; Huang, Y. X.6; Xu, Y. H.6; Li, Z. X.6; Hao, L. F.6; Luo, J. T.7; Dai, S.7; Luo, R.8; Zakie, Hassan9; Ma, Z. Y.4
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| 2021-06-01 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| ISSN | 0035-8711 |
| Volume | 503Issue:4Pages:5223-5231 |
| Contribution Rank | 5 |
| Abstract | In this paper, we investigate the impact of correlated noise on fast radio burst (FRB) searching. We found that (1) the correlated noise significantly increases the false alarm probability; (2) the signal-to-noise ratios (S/N) of the false positives become higher; (3) the correlated noise also affects the pulse width distribution of false positives, and there will be more false positives with wider pulse width. We use 55-h observation for M82 galaxy carried out at Nanshan 26m radio telescope to demonstrate the application of the correlated noise modelling. The number of candidates and parameter distribution of the false positives can be reproduced with the modelling of correlated noise. We will also discuss a low S/N candidate detected in the observation, for which we demonstrate the method to evaluate the false alarm probability in the presence of correlated noise. Possible origins of the candidate are discussed, where two possible pictures, an M82-harboured giant pulse and a cosmological FRB, are both compatible with the observation. |
| Keyword | methods: data analysis radio continuum: transients |
| DOI | 10.1093/mnras/stab823 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PULSAR |
| Funding Project | CAS[XDB23010200] ; Max-Planck Partner Group ; National SKA program of China[2020SKA0120100] ; NSFC[11690024] ; CAS Cultivation Project for FAST Scientific |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000649001600037 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | CAS ; Max-Planck Partner Group ; National SKA program of China ; NSFC ; CAS Cultivation Project for FAST Scientific |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4186 |
| Collection | 射电天文研究室_数字技术实验室 射电天文研究室_脉冲星研究团组 射电天文研究室_天线技术实验室 科研仪器设备产出_利用南山26米射电望远镜（NSRT）观测数据的文章 |
| Corresponding Author | Lee, K. J. |
| Affiliation | 1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Max Planck Inst Radioastron, D-53121 Bonn, Germany 4.Bayesian Data Technol Wuhan Co Ltd, Wuhan 430079, Hubei, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, Natl Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 6.Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China 7.Chinese Acad Sci, Natl Time Serv Ctr NTSC, Xian 710600, Shaanxi, Peoples R China 8.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Box 76, Epping, NSW 1710, Australia 9.Univ Malaya, Dept Phys, Radio Cosmol Lab, Kuala Lumpur 50603, Malaysia |
| Recommended Citation GB/T 7714 | Zhang, C. F.,Xu, J. W.,Men, Y. P.,et al. Fast radio burst detection in the presence of coloured noise[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,503(4):5223-5231. |
| APA | Zhang, C. F..,Xu, J. W..,Men, Y. P..,Deng, X. H..,Xu, Heng.,...&Ma, Z. Y..(2021).Fast radio burst detection in the presence of coloured noise.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,503(4),5223-5231. |
| MLA | Zhang, C. F.,et al."Fast radio burst detection in the presence of coloured noise".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 503.4(2021):5223-5231. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhang-2021-Fast radi（4547KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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