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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2404.16263 |
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| _version_ | 1866917649945985024 |
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| author | Zheng, Shijie Han, Dawei Xu, Heng Lee, Kejia Yuan, Jianping Wang, Haoxi Ge, Mingyu Zhang, Liang Li, Yongye Yin, Yitao Ma, Xiang Chen, Yong Zhang, Shuangnan |
| author_facet | Zheng, Shijie Han, Dawei Xu, Heng Lee, Kejia Yuan, Jianping Wang, Haoxi Ge, Mingyu Zhang, Liang Li, Yongye Yin, Yitao Ma, Xiang Chen, Yong Zhang, Shuangnan |
| contents | Millisecond pulsars (MSPs) are known for their long-term stability. Using six years of observations from the Neutron Star Interior Composition Explorer (NICER), we have conducted an in-depth analysis of the X-ray timing results for six MSPs: PSRs B1937+21, B1821$-$24, J0437$-$4715, J0030+0451, J0218+4232, and J2124$-$3358. The timing stability parameter $σ_z$ has been calculated, revealing remarkable timing precision on the order of $10^{-14}$ for PSRs B1937+21 and J0437$-$4715, and $10^{-13}$ for PSRs B1821$-$24, J0218+4232, and J0030+0451 over a timescale of 1000 days. These findings underscore the feasibility of autonomous in-orbit timekeeping using X-ray observations of MSPs. In addition, the consistency of long-term spin-down noise in the X-ray and radio bands has been investigated by comparison with IPTA radio data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_16263 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | New Timing Results of MSPs from NICER Observations Zheng, Shijie Han, Dawei Xu, Heng Lee, Kejia Yuan, Jianping Wang, Haoxi Ge, Mingyu Zhang, Liang Li, Yongye Yin, Yitao Ma, Xiang Chen, Yong Zhang, Shuangnan High Energy Astrophysical Phenomena Millisecond pulsars (MSPs) are known for their long-term stability. Using six years of observations from the Neutron Star Interior Composition Explorer (NICER), we have conducted an in-depth analysis of the X-ray timing results for six MSPs: PSRs B1937+21, B1821$-$24, J0437$-$4715, J0030+0451, J0218+4232, and J2124$-$3358. The timing stability parameter $σ_z$ has been calculated, revealing remarkable timing precision on the order of $10^{-14}$ for PSRs B1937+21 and J0437$-$4715, and $10^{-13}$ for PSRs B1821$-$24, J0218+4232, and J0030+0451 over a timescale of 1000 days. These findings underscore the feasibility of autonomous in-orbit timekeeping using X-ray observations of MSPs. In addition, the consistency of long-term spin-down noise in the X-ray and radio bands has been investigated by comparison with IPTA radio data. |
| title | New Timing Results of MSPs from NICER Observations |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2404.16263 |