Multifaceted Emission Properties of PSR J2129+4119 Observed with FAST
文献类型：期刊论文
| 作者 | Tedila, H. M.9,10; Li, D.7,8,10; Wang, P.6,7,10; Yuen, R.4,5; Wu, Z. W.10; Dang, S. J.3; Yuan, J. P.4,5; Wang, N.4,5; Cruces, M.1,2; Zhang, J. S.10,12 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-01-20 |
| 卷号 | 997期号:1页码:24 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae230d |
| 产权排序 | 6 |
| 英文摘要 | We present a detailed single-pulse study of the long-period pulsar PSR J2129+4119 using high-sensitivity Five-hundred-meter Aperture Spherical Radio Telescope (FAST) observations. Despite locating well below the traditional death line, the pulsar exhibits sustained and multimodal emission behavior, including nulls, weak pulses, regular emission, and occasional bright pulses. The nulling fraction is measured to be 8.13% +/- 0.51%, with null durations typically under four pulse periods. Fluctuation spectral analysis reveals both phase-modulated subpulse drifting and intermittent beatlike modulation. At the same time, polarization profiles show high linear polarization and stable polarization position angle swings consistent with a near-tangential sight line geometry. Quasiperiodic microstructures are detected in 11.54% of regular pulses, with a mean periodicity and width of 4.57 and 4.30 ms, respectively. A well-defined scintillation arc in the secondary spectrum confirms the presence of a localized scattering screen. These results indicate that PSR J2129+4119 remains magnetospherically active and coherently emitting despite its low energy loss rate, offering key insights into pulsar emission physics near the death line. |
| WOS关键词 | PULSAR RADIO-EMISSION ; DRIFTING SUBPULSES ; EMPIRICAL-THEORY ; INTERSTELLAR SCINTILLATION ; FREQUENCY-DEPENDENCE ; PARABOLIC ARCS ; PERIODIC NULLS ; MODEL ; POLARIZATION ; MODULATION |
| 资助项目 | Alliance of International Science Organizations ((sic)(sic))[ANSO-VF-2024-01] ; MOST divided by National Natural Science Foundation of China (NSFC)[12588202] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001659777000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Alliance of International Science Organizations ((sic)(sic)) ; MOST divided by National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8462]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Tedila, H. M.; Li, D.; Wang, P. |
| 作者单位 | 1.Pontificia Univ Catolica Chile, Dept Elect Engn, Ave Vicuna Mackenna 4860, Santiago, Chile 2.Pontificia Univ Catolica Chile, Ctr Astroengn, Ave Vicuna Mackenna 4860, Santiago, Chile 3.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 4.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 6.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China 7.State Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China 8.Tsinghua Univ, Dept Astron, New Cornerstone Sci Lab, Beijing, Peoples R China 9.Arba Minch Univ, Arba Minch 21, Ethiopia 10.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tedila, H. M.,Li, D.,Wang, P.,et al. Multifaceted Emission Properties of PSR J2129+4119 Observed with FAST[J]. ASTROPHYSICAL JOURNAL,2026,997(1):24. |
| APA | Tedila, H. M..,Li, D..,Wang, P..,Yuen, R..,Wu, Z. W..,...&FASTCollaboration.(2026).Multifaceted Emission Properties of PSR J2129+4119 Observed with FAST.ASTROPHYSICAL JOURNAL,997(1),24. |
| MLA | Tedila, H. M.,et al."Multifaceted Emission Properties of PSR J2129+4119 Observed with FAST".ASTROPHYSICAL JOURNAL 997.1(2026):24. |
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