Institutional Repository of Radio Astronomy Research Laboratory
| The FAST Galactic Plane Pulsar Snapshot Survey. II. Discovery of 76 Galactic Rotating Radio Transients and the Enigma of RRATs | |
Zhou, D. J.1,2; Han, J. L.1,2; Xu, Jun1; Wang, Chen1; Wang, P. F.1; Wang, Tao1,2; Jing, Wei-Cong1,2; Chen, Xue1,2; Yan, Yi1,2; Su, Wei-Qi.1,2; Gan, Heng-Qian1,2; Jiang, Peng1,2; Sun, Jing-Hai1,2; Wang, Hong-Guang3,4; Wang, Na5,6 ; Wang, Shuang-Qiang5; Xu, Ren-Xin7; You, Xiao-Peng8
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| 2023-10-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 23Issue:10Pages:104001 |
| Contribution Rank | 5 |
| Abstract | We have carried out the Galactic Plane Pulsar Snapshot (GPPS) survey by using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), the most sensitive systematic pulsar survey in the Galactic plane. In addition to more than 500 pulsars already discovered through normal periodical search, we report here the discovery of 76 new transient radio sources with sporadic strong pulses, detected by using the newly developed module for a sensitive single-pulse search. Their small DM values suggest that they all are Galactic rotating radio transients (RRATs). They show different properties in the follow-up observations. More radio pulses have been detected from 26 transient radio sources but no periods can be found due to a limited small number of pulses from all FAST observations. The follow-up observations show that 16 transient sources are newly identified as being the prototypes of RRATs with a period already determined from more detected sporadic pulses, and 10 sources are extremely nulling pulsars, and 24 sources are weak pulsars with sparse strong pulses. On the other hand, 48 previously known RRATs have been detected by the FAST, either during verification observations for the GPPS survey or through targeted observations of applied normal FAST projects. Except for one RRAT with four pulses detected in a session of 5-minute observation and four RRATs with only one pulse detected in a session, sensitive FAST observations reveal that 43 RRATs are just generally weak pulsars with sporadic strong pulses or simply very nulling pulsars, so that the previously known RRATs always have an extreme emission state together with a normal hardly detectable weak emission state. This is echoed by the two normal pulsars J1938+2213 and J1946+1449 with occasional brightening pulses. Though strong pulses of RRATs are very outstanding in the energy distribution, their polarization angle variations follow the polarization angle curve of the averaged normal pulse profile, suggesting that the predominant sparse pulses of RRATs are emitted in the same region with the same geometry as normal weak pulsars. |
| Keyword | (stars:) pulsars: general surveys methods: data analysis |
| DOI | 10.1088/1674-4527/accc76 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | I. SURVEY DESCRIPTION ; GREEN BANK ; GLITCH ACTIVITY ; REAL-TIME ; BURSTS ; POLARIZATION ; SEARCHES ; EMISSION ; INTERSTELLAR ; CLASSIFIER |
| Funding Project | Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC)[11988101] ; National Natural Science Foundation of China (NSFC)[11833009] ; Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-SLH021] ; Cultivation Project for the FAST scientific Payoff and Research Achievement of CAMS-CAS ; NSFC[U2031115] ; National SKA program of China[2020SKA0120200] ; Guangzhou Science and Technology Project[202102010466] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001122280500001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; Key Research Program of the Chinese Academy of Sciences ; Cultivation Project for the FAST scientific Payoff and Research Achievement of CAMS-CAS ; NSFC ; National SKA program of China ; Guangzhou Science and Technology Project |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5647 |
| Collection | 射电天文研究室_脉冲星研究团组 科研仪器设备产出_我台利用FAST观测数据文章 |
| Corresponding Author | Han, J. L. |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron, Beijing 100049, Peoples R China 3.Guangzhou Univ, Sch Phys & Mat Sci, Dept Astron, Guangzhou 510006, Peoples R China 4.Natl Astron Data Ctr, Great Bay Area, Guangzhou 510006, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 6.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 7.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 8.Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou, D. J.,Han, J. L.,Xu, Jun,et al. The FAST Galactic Plane Pulsar Snapshot Survey. II. Discovery of 76 Galactic Rotating Radio Transients and the Enigma of RRATs[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(10):104001. |
| APA | Zhou, D. J..,Han, J. L..,Xu, Jun.,Wang, Chen.,Wang, P. F..,...&You, Xiao-Peng.(2023).The FAST Galactic Plane Pulsar Snapshot Survey. II. Discovery of 76 Galactic Rotating Radio Transients and the Enigma of RRATs.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(10),104001. |
| MLA | Zhou, D. J.,et al."The FAST Galactic Plane Pulsar Snapshot Survey. II. Discovery of 76 Galactic Rotating Radio Transients and the Enigma of RRATs".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.10(2023):104001. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhou-2023-The FAST G（18829KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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