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Pulse profiles and timing of PSR J1757-2421
Yuan, J. P.1,2; Manchester, R. N.3; Wang, N.1,2; Wang, J. B.1; Zhou, X.1; Yan, W. M.1; Liu, Z. Y.1
2017-04-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume466Issue:1Pages:1234-1241
Corresponding AuthorYuan, J. P.(yuanjp@xao.ac.cn) ; Manchester, R. N.(dick.manchester@csiro.au) ; Wang, N.(na.wang@xao.ac.cn)
AbstractPulse arrival time measurements over 14 yr with the Nanshan 25-m and Parkes 64-m radio telescopes have been used to determine the average profile and timing properties for PSR J1757-2421 (B1754-24). Analysis of the radio profile data shows a large variation of spectral index across the profile and an unusual increase in component separation with increasing frequency. The timing observations show that PSR B1754-24 underwent a large glitch with a fractional increase in spin frequency of Delta v(g)/v similar to 7.8 x 10(-6) in 2011 May. At the time of the glitch, there was a large permanent jump in the rotational frequency accompanied by two exponential recovery terms with time-scales of 15(6) and 97(15) d, respectively.
Keywordstars: neutron pulsars: general pulsars: individual: PSR J1757-2421, PSR B1754-24
DOI10.1093/mnras/stw3203
WOS KeywordNEUTRON-STARS ; VORTEX CREEP ; VELA PULSAR ; SUPERFLUID TURBULENCE ; FREQUENCY-DEPENDENCE ; INTERNAL TEMPERATURE ; GLITCHES ; NOISE ; MODEL ; ROTATION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000398112400086
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23160
Collection中国科学院紫金山天文台
Corresponding AuthorYuan, J. P.; Manchester, R. N.; Wang, N.
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
Recommended Citation
GB/T 7714
Yuan, J. P.,Manchester, R. N.,Wang, N.,et al. Pulse profiles and timing of PSR J1757-2421[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,466(1):1234-1241.
APA Yuan, J. P..,Manchester, R. N..,Wang, N..,Wang, J. B..,Zhou, X..,...&Liu, Z. Y..(2017).Pulse profiles and timing of PSR J1757-2421.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,466(1),1234-1241.
MLA Yuan, J. P.,et al."Pulse profiles and timing of PSR J1757-2421".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 466.1(2017):1234-1241.
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