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State Switching of the X-Ray/Radio Transitional Millisecond Pulsar
Shang, Lun-Hua1,2,3; Zhang, Cheng-Min2,3,4; Li, Di2,3,4; Wan, De-Hua1,5; Wang, Shuang-Qiang3,6; Wang, Pei2,3,4; Pan, Yuan-Yue7; Yang, Yi-Yan8; Zin, Qi-Jun1,5,9
2017-11-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume849Issue:2Pages:6
Corresponding AuthorZhang, Cheng-Min(zhangcm@bao.ac.cn)
AbstractPSR J1023+0038 is a known transitional pulsar, which switches between the accretion-powered X-ray pulsar state and the rotation-powered radio millisecond pulsar (MSP) state. Here, we study the conditions for its state transition by ascribing similar to GHz radio pulse emission to the plasma cutoff oscillation frequency at the magnetosphere, which depends on the plasma density or accretion rate. With the accretion X-ray luminosity declining fromhigh to low state (e.g., similar to 10(35) erg s(-1) to similar to 10(32) erg s(-1)), the magnetosphere boundary expands to the light cylinder, where the plasma density is low enough to permit the emission of radio waves at the several-GHz frequency band. Thus, for a sufficiently low accretion-rate state (similar to 1032 erg s(-1)), the radio emission at the several-GHz band is not blocked by the plasma, and the radio pulsar can be detected in the favored "observational windows," i.e., the L band (1-2 GHz), S band (2-4 GHz), and C band (4-8 GHz). Furthermore, to evaluate the penetration characteristics of the outgoing radio wave of low frequency, we calculate its skin depth, which is found to be a couple of centimeters for the low X-ray luminosity of 10(34)-10(32) erg s(-1), a scale that is much shorter than the light cylinder radius of about 100 km for MSPs.
Keywordbinaries: general pulsars: individual (PSR J1023+0038) stars: neutron stars: rotation X-rays: binaries
DOI10.3847/1538-4357/aa932c
WOS KeywordBINARY XSS J12270-4859 ; SUB-LUMINOUS ACCRETION ; RAY BINARY ; NEUTRON-STAR ; MAGNETIC-FIELD ; RADIO PULSARS ; EMISSION ; QUIESCENCE ; EVOLUTION ; PULSATIONS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000414587300007
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22551
Collection中国科学院紫金山天文台
Corresponding AuthorZhang, Cheng-Min
Affiliation1.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Guizhou, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Beijing 100012, Peoples R China
5.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Guizhou, Peoples R China
6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
7.Xiangtan Univ, Sch Phys, Xiangtan 411105, Peoples R China
8.Beijing Normal Univ, Astron Dept, Beijing 100875, Peoples R China
9.NAOC GZNU, Ctr Astron Res & Educ, Guiyang 550001, Guizhou, Peoples R China
Recommended Citation
GB/T 7714
Shang, Lun-Hua,Zhang, Cheng-Min,Li, Di,et al. State Switching of the X-Ray/Radio Transitional Millisecond Pulsar[J]. ASTROPHYSICAL JOURNAL,2017,849(2):6.
APA Shang, Lun-Hua.,Zhang, Cheng-Min.,Li, Di.,Wan, De-Hua.,Wang, Shuang-Qiang.,...&Zin, Qi-Jun.(2017).State Switching of the X-Ray/Radio Transitional Millisecond Pulsar.ASTROPHYSICAL JOURNAL,849(2),6.
MLA Shang, Lun-Hua,et al."State Switching of the X-Ray/Radio Transitional Millisecond Pulsar".ASTROPHYSICAL JOURNAL 849.2(2017):6.
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