Periodic mode changing in PSR J1048-5832

doi:10.1093/mnras/stz3399

CORC > 国家天文台 > 中国科学院国家天文台

	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
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2020-02-01
卷号	491 期号:4 页码:4634-4641
关键词	stars: neutron pulsars: general pulsars: individual (PSR J1048-5832)
ISSN号	0035-8711
DOI	10.1093/mnras/stz3399
英文摘要	By 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.
资助项目	National Basic Research Program of China (973 Program)[2015CB857100] ; National Natural Science Foundation of China[U1831102] ; National Natural Science Foundation of China[U1731238] ; National Natural Science Foundation of China[U1631106] ; National Natural Science Foundation of China[11873080] ; National Natural Science Foundation of China[U1838109] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB23010200] ; National Key Research and Development Program of China[2016YFA0400800] ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; CAS 'Light of West China' Program[2018-XBQNXZ-B-023] ; CAS 'Light of West China' Program[2016-QNXZ-B-24] ; CAS 'Light of West China' Program[2017-XBQNXZ-B-022] ; Commonwealth of Australia
WOS关键词	DYNAMIC EMISSION PROPERTIES ; EMPIRICAL-THEORY ; PULSAR EMISSION ; MODULATION PROPERTIES ; RADIO OBSERVATIONS ; POLARIZATION ; NULLS ; RAY ; PSRCHIVE ; GEOMETRY
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000512310600004
资助机构	National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; CAS 'Light of West China' Program ; CAS 'Light of West China' Program ; Commonwealth of Australia ; Commonwealth of Australia ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; CAS 'Light of West China' Program ; CAS 'Light of West China' Program ; Commonwealth of Australia ; Commonwealth of Australia ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; CAS 'Light of West China' Program ; CAS 'Light of West China' Program ; Commonwealth of Australia ; Commonwealth of Australia ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 2016 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; CAS 'Light of West China' Program ; CAS 'Light of West China' Program ; Commonwealth of Australia ; Commonwealth of Australia
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/54262]
专题	中国科学院国家天文台
通讯作者	Yan, W. M.
作者单位	1.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
推荐引用方式 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.