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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
2021-03-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume909Issue:2Pages:170
Contribution Rank2
AbstractWe 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 Emailkoufeifei@nao.cas.cn ; pb@nao.cas.cn
KeywordPulsars Radio pulsars Neutron stars Magnetospheric radio emissions Observational astronomy
DOI10.3847/1538-4357/abd545
URL查看原文
Indexed BySCI
Language英语
WOS KeywordRADIO-EMISSION ; PULSAR EMISSION ; POLARIZATION ; PSRCHIVE ; GEOMETRY ; PSRFITS ; POLES
Funding ProjectWest 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 AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000629151600001
PublisherIOP PUBLISHING LTD
Funding OrganizationWest 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)
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Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3890
Collection射电天文研究室_脉冲星研究团组
Corresponding AuthorKou, F. F.; Peng, B.
Affiliation1.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 AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang 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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