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| Timing and Single-pulse Study of Pulsar J1909+0122 Discovered by CRAFTS | |
Chen, Yutong1,2; Wang, Pei1,3; Li, Di1,2,4; Guegercinoglu, Erbil1; Zhao, Rushuang1,5; Meng, Lingqi1,2; Yuan, Jianping6 ; Niu, Jiarui1,2; Zhu, Weiwei1,3; Feng, Yi4; Miao, Chenchen1,2; Niu, Chenhui1,7; Wu, Qingdong6; Wang, Na6; Wang, Shen8; Xie, Xiaoyao5; Xue, Mengyao1; Yao, Jumei6; Yuan, Mao1,2; You, Shanping5; Yu, Xuhong5; Yue, Youling1; Zhang, Jie9; Zhang, Junshuo1,2; Zhang, Lei1; Wang, Yabiao10; Gan, Zhenye10; Li, Yuxi10; Sun, Zhongyi10; Wang, Chengjie10
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| 2023-08-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 23Issue:8Pages:085022 |
| Contribution Rank | 6 |
| Abstract | report the discovery of PSR J1909+0122 by the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) as part of the Commensal Radio Astronomy FAST Survey. PSR J1909+0122 has a spin period of 1.257 s and a dispersion measure of 186.2 pc cm-3. The averaged pulse profile shows two distinct components. We performed a single-pulse study based on a one-hour observation at 1.25 GHz on 2021 August 23. We used a threshold of 5sep to measure the nulling fraction (NF) as 63% +/- 1.5%. The longitude-resolved fluctuation spectra and fast Fourier transform spectra of the binary sequences revealed the quasi-periodicity of nulling with a period of 30 rotation periods. We examined the reliability of the periodicity by comparing it to random noise injection. The NF,. E, and modulation periodicity PM of PSR J1909+0122 were compared with other periodic nulling pulsars, showing that the source of J1909+0122 has the second largest NF in the population. Long-term timing observations over six months were used to derive the phase-connected ephemeris of this pulsar. The measured P and. P values disfavor dipolar geometry for polar gap models, and the prediction for a space-charge-limited flow model in the case of inverse Compton scattering is only just above the death line. In this work, PSR J1909+0122 has revealed possible correlations between nulling behavior and pulsar properties, which will help to shed light on the pulsar emission mechanism and its temporal evolution in future observations. |
| Keyword | (stars:) pulsars: general (stars:) pulsars: individual (PSR J1909+0122) stars: neutron |
| DOI | 10.1088/1674-4527/acd89d |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PERIODIC NULLS ; EMISSION ; INTENSITY ; MODES ; PHASE |
| Funding Project | National Astronomical Observatories of Chinese Academy of Sciences (NAOC) ; National Natural Science Foundation of China (NSFC)[11988101] ; National Natural Science Foundation of China (NSFC)[12203045] ; National Natural Science Foundation of China (NSFC)[12203070] ; National Natural Science Foundation of China (NSFC)[12103013] ; National Natural Science Foundation of China (NSFC)[T2241020] ; National Natural Science Foundation of China (NSFC)[2020SKA0120200] ; National SKA Program of China[2022SKA0130100] ; National SKA Program of China[2022SKA0130104] ; National SKA Program of China[(2021)023] ; Foundation of Science and Technology of Guizhou Province[(2021)303] ; Foundation of Guizhou Provincial Education Department[(2020)003] ; Foundation of Guizhou Provincial Education Department[U2031117] ; National Natural Science Foundation of China[2021055] ; Youth Innovation Promotion Association CAS[YSBR-006] ; CAS Project for Young Scientists in Basic Research[11725313 12041303] ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; [12041304] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001026320800001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | National Astronomical Observatories of Chinese Academy of Sciences (NAOC) ; National Natural Science Foundation of China (NSFC) ; National SKA Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; CAS Project for Young Scientists in Basic Research ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5359 |
| 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 | Wang, Pei |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China 4.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China 5.Guizhou Normal Univ, Guiyang 550001, Peoples R China 6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 7.Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China 8.Fudan Univ, Shanghai 200443, Peoples R China 9.Qilu Normal Univ, Jinan 250200, Shandong, Peoples R China 10.Tencent Youtu Lab, Shanghai 200233, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Yutong,Wang, Pei,Li, Di,et al. Timing and Single-pulse Study of Pulsar J1909+0122 Discovered by CRAFTS[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(8):085022. |
| APA | Chen, Yutong.,Wang, Pei.,Li, Di.,Guegercinoglu, Erbil.,Zhao, Rushuang.,...&Wang, Chengjie.(2023).Timing and Single-pulse Study of Pulsar J1909+0122 Discovered by CRAFTS.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(8),085022. |
| MLA | Chen, Yutong,et al."Timing and Single-pulse Study of Pulsar J1909+0122 Discovered by CRAFTS".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.8(2023):085022. |
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| Chen-2023-Timing and（1713KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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