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| Periodic and Phase-locked Modulation in PSR B1929+10 Observed with FAST | |
Kou, F. F.1,2 ; Yan, W. M.2,3; Peng, B.1; Lu, J. G.1; Liu, K.1,4; Zhang, C. M.1; Strom, R. G.5,6; Wang, L.1,7,8; Yuan, J. P.2,9; Yuen, Rai2,3; Yu, Y. Z.10; Yao, J. M.1,2; Liu, B.1; Yan, J.1; Jiang, P.1; Jin, C. J.1; Li, D.1,11; Qian, L.1; Yue, Y. L.1; Zhu, Y.1
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| 2021-03-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 909Issue:2Pages:170 |
| Contribution Rank | 2 |
| Abstract | We present a detailed single-pulse analysis for PSR B1929+10 based on observations with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The main pulse (MP) and interpulse (IP) are found to be modulated with a periodicity of similar to 12 times the pulsar's rotational period (P). The similar to 12P modulation is confirmed as a periodic amplitude modulation instead of systematic drifting. The periodic amplitude modulation in the IP is found to be anti-correlated with that in the weak preceding component of the MP (MP_i), but correlated with that in the first two components of the MP (MP_ii), which implies that the modulation patterns in the IP and the MP are phase-locked. What is more interesting is that the modulation in MP_ii is delayed from that in the IP by about 1P. Furthermore, high-sensitivity observations by FAST reveal that weak emission exists between the MP and the IP. In addition, we confirm that the separation between the IP and the MP is independent of radio frequency. The above results are a conundrum for pulsar theories and cannot be satisfactorily explained by the current pulsar models. Therefore, our results observed with FAST provide an opportunity to probe the structure of pulsar emission and the neutron star's magnetosphere. |
| Correspondent Email | koufeifei@nao.cas.cn ; pb@nao.cas.cn |
| Keyword | Pulsars Radio pulsars Neutron stars Magnetospheric radio emissions Observational astronomy |
| DOI | 10.3847/1538-4357/abd545 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RADIO-EMISSION ; PULSAR EMISSION ; POLARIZATION ; PSRCHIVE ; GEOMETRY ; PSRFITS ; POLES |
| Funding Project | West Light Foundation of the Chinese Academy of Sciences[2018-XBQNXZ-B-023] ; West Light Foundation of the Chinese Academy of Sciences[2016-QNXZ-B-24] ; National Key R&D Program of China[2018YFA0404703] ; National Key R&D Program of China[2017YFA0402600] ; Open Project Program of the Key Laboratory of FAST, NAOC, Chinese Academy of Sciences ; China Postdoctoral Science Foundation[2019M650847] ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; 2021 open program of the Key Laboratory of Xinjiang Uygur Autonomous Region ; NSFC[U1831102] ; NSFC[U1731238] ; NSFC[U1838109] ; NSFC[U11873080] ; CAS Light of West China Program[2017-XBQNXZ-B022] ; Guizhou Education Department[KY[2019]214] ; CAS Strategic Priority Research Program[XDB23000000] ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000629151600001 |
| Publisher | IOP PUBLISHING LTD |
| Funding Organization | West Light Foundation of the Chinese Academy of Sciences ; National Key R&D Program of China ; Open Project Program of the Key Laboratory of FAST, NAOC, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; 2021 open program of the Key Laboratory of Xinjiang Uygur Autonomous Region ; NSFC ; CAS Light of West China Program ; Guizhou Education Department ; CAS Strategic Priority Research Program ; Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3890 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | Kou, F. F.; Peng, B. |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210023, Peoples R China 4.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 5.ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands 6.Univ Amsterdam, Astron Inst, Amsterdam, Netherlands 7.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England 8.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 9.China West Normal Univ, Dept Astron, Nanchong 637009, Peoples R China 10.Qiannan Normal Univ Nationalities, Duyun 558000, Peoples R China 11.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa |
| 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 | Kou, F. F.,Yan, W. M.,Peng, B.,et al. Periodic and Phase-locked Modulation in PSR B1929+10 Observed with FAST[J]. ASTROPHYSICAL JOURNAL,2021,909(2):170. |
| APA | Kou, F. F..,Yan, W. M..,Peng, B..,Lu, J. G..,Liu, K..,...&Zhu, Y..(2021).Periodic and Phase-locked Modulation in PSR B1929+10 Observed with FAST.ASTROPHYSICAL JOURNAL,909(2),170. |
| MLA | Kou, F. F.,et al."Periodic and Phase-locked Modulation in PSR B1929+10 Observed with FAST".ASTROPHYSICAL JOURNAL 909.2(2021):170. |
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| Kou-2021-Periodic an（1315KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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