Institutional Repository of Radio Astronomy Research Laboratory
| Pulse Jitter and Single-pulse Variability in Millisecond Pulsars | |
Wang, S. Q.1,2,3 ; Wang, N.1,2,3; Wang, J. B.4; Hobbs, G.5; Xu, H.6; Wang, B. J.6; Dai, S.7; Dang, S. J.8; Li, D.6; Feng, Y.9; Zhang, C. M.6
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| 2024-03-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 964Issue:1Pages:6 |
| Contribution Rank | 1 |
| Abstract | Understanding the jitter noise resulting from single-pulse phase and shape variations is important for the detection of gravitational waves using pulsar timing arrays. We present measurements of the jitter noise and single-pulse variability of 12 millisecond pulsars that are part of the International Pulsar Timing Array sample using the Five-hundred-meter Aperture Spherical radio Telescope. We find that the levels of jitter noise can vary dramatically among pulsars. A moderate correlation with a correlation coefficient of 0.57 between jitter noise and pulse width is detected. To mitigate jitter noise, we perform matrix template matching using all four Stokes parameters. Our results reveal a reduction in jitter noise ranging from 6.7% to 39.6%. By performing longitude-resolved fluctuation spectrum analysis, we identify periodic intensity modulations in 10 pulsars. In PSR J0030+0451, we detect single pulses with energies more than 10 times the average pulse energy, suggesting the presence of giant pulses. We also observe a periodic mode-changing phenomenon in PSR J0030+0451. We examine the achievable timing precision by selecting a subset of pulses with a specific range of peak intensity, but no significant improvement in timing precision is achievable. |
| DOI | 10.3847/1538-4357/ad217b |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | YR DATA SET ; FREQUENCY-DEPENDENCE ; DRIFTING SUBPULSES ; PRECISION ; POLARIMETRY ; MODULATION ; SEARCH ; LIMITS |
| Funding Project | the national natural science foundation of China[12288102] ; the national natural science foundation of China[12203092] ; the national natural science foundation of China[12041304] ; National Natural Science Foundation of China[2022A03013-3] ; National Natural Science Foundation of China[2022A03013-2] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2020SKA0120100] ; National SKA Program of China[2022YFC2205202] ; National SKA Program of China[2021YFC2203502] ; National Key Research and Development Program of China[2022D01B71] ; National Key Research and Development Program of China[2022D01D85] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2023TSYCQNTJ0024] ; Tianshan Talent Training Program for Young Elite Scientists ; Special Research Assistant Program of CAS[YSBR-063] ; CAS Project for Young Scientists in Basic Research[2021PE0AC03] ; Key Research Project of Zhejiang Laboratory[LY23A030001] ; Zhejiang Provincial Natural Science Foundation of China ; Chinese Academy of Sciences ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China (MOF) |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001182066600001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | the national natural science foundation of China ; National Natural Science Foundation of China ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; National SKA Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Tianshan Talent Training Program for Young Elite Scientists ; Special Research Assistant Program of CAS ; CAS Project for Young Scientists in Basic Research ; Key Research Project of Zhejiang Laboratory ; Zhejiang Provincial Natural Science Foundation of China ; Chinese Academy of Sciences ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China (MOF) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5915 |
| 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, S. Q. |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Xinjiang, Peoples R China 3.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Xinjiang, Peoples R China 4.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Zhejiang, Peoples R China 5.CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia 6.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 7.Western Sydney Univ, Sch Sci, Locked Bag 1797, Penrith, NSW 2751, Australia 8.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 9.Zhejiang Lab, Hangzhou, Zhejiang, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wang, S. Q.,Wang, N.,Wang, J. B.,et al. Pulse Jitter and Single-pulse Variability in Millisecond Pulsars[J]. ASTROPHYSICAL JOURNAL,2024,964(1):6. |
| APA | Wang, S. Q..,Wang, N..,Wang, J. B..,Hobbs, G..,Xu, H..,...&Zhang, C. M..(2024).Pulse Jitter and Single-pulse Variability in Millisecond Pulsars.ASTROPHYSICAL JOURNAL,964(1),6. |
| MLA | Wang, S. Q.,et al."Pulse Jitter and Single-pulse Variability in Millisecond Pulsars".ASTROPHYSICAL JOURNAL 964.1(2024):6. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Wang-2024-Pulse Jitt（1294KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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