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Timing and Single-pulse Study of Pulsar J1909+0122 Discovered by CRAFTS

文献类型：期刊论文

作者Chen, Yutong9,10; Wang, Pei8,10; Li, Di7,9,10; Guegercinoglu, Erbil10; Zhao, Rushuang6,10; Meng, Lingqi9,10; Yuan, Jianping5; Niu, Jiarui9,10; Zhu, Weiwei8,10; Feng, Yi7
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2023-08-01
卷号23期号:8页码:13
关键词(stars:) pulsars: general (stars:) pulsars: individual (PSR J1909+0122) stars: neutron
ISSN号1674-4527
DOI10.1088/1674-4527/acd89d
通讯作者Wang, Pei(wangpei@nao.cas.cn)
英文摘要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.
WOS关键词PERIODIC NULLS ; EMISSION ; INTENSITY ; MODES ; PHASE
资助项目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研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001026320800001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构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
源URL[http://ir.xao.ac.cn/handle/45760611-7/5358]  
专题研究单元未命名
通讯作者Wang, Pei
作者单位1.Tencent Youtu Lab, Shanghai 200233, Peoples R China
2.Qilu Normal Univ, Jinan 250200, Shandong, Peoples R China
3.Fudan Univ, Shanghai 200443, Peoples R China
4.Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China
5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
6.Guizhou Normal Univ, Guiyang 550001, Peoples R China
7.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China
8.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China
9.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
10.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式
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):13.
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),13.
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):13.

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