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Periodic mode changing in PSR J1048-5832
Yan, W. M.1,2; Manchester, R. N.3; Wang, N.1,2,4; Wen, Z. G.2; Yuan, J. P.1,2,4; Lee, K. J.5,6; Chen, J. L.7
2020-02-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume491Issue:4Pages:4634-4641
Corresponding AuthorYan, W. M.(yanwm@xao.ac.cn)
AbstractBy analysing the data acquired from the Parkes 64-m radio telescope at 1369 MHz, we report on the phase-stationary non-drift amplitude modulation observed in PSR J1048-5832. The high-sensitivity observations revealed that the central and trailing components of the pulse profile of this pulsar switch between a strong mode and a weak mode periodically. However, the leading component remains unchanged. Polarization properties of the strong and weak modes are investigated. Considering the similarity to mode changing, we argue that the periodic amplitude modulation in PSR J1048-5832 is periodic mode changing. The fluctuation spectral analysis showed that the modulation period is very short (similar to 2.1 s or 17P(1)), where P-1 is the rotation period of the pulsar. We find that this periodic amplitude modulation is hard to explain by existing models that account for the periodic phenomena in pulsars like sub-pulse drifting.
Keywordstars: neutron pulsars: general pulsars: individual (PSR J1048-5832)
DOI10.1093/mnras/stz3399
WOS KeywordDYNAMIC EMISSION PROPERTIES ; EMPIRICAL-THEORY ; PULSAR EMISSION ; MODULATION PROPERTIES ; RADIO OBSERVATIONS ; POLARIZATION ; NULLS ; RAY ; PSRCHIVE ; GEOMETRY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000512310600004
PublisherOXFORD UNIV PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/36478
Collection中国科学院紫金山天文台
Corresponding AuthorYan, W. M.
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
3.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia
4.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
6.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
7.Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Shanxi, Peoples R China
Recommended Citation
GB/T 7714
Yan, W. M.,Manchester, R. N.,Wang, N.,et al. Periodic mode changing in PSR J1048-5832[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,491(4):4634-4641.
APA Yan, W. M..,Manchester, R. N..,Wang, N..,Wen, Z. G..,Yuan, J. P..,...&Chen, J. L..(2020).Periodic mode changing in PSR J1048-5832.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,491(4),4634-4641.
MLA Yan, W. M.,et al."Periodic mode changing in PSR J1048-5832".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 491.4(2020):4634-4641.
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