Modelling gamma-ray light curves of phase-aligned millisecond pulsars
Modelling gamma-ray light curves of phase-aligned millisecond pulsars
复制标题
相位对准毫秒脉冲星的伽马射线光变曲线建模
DOI:
10.1093/mnras/stx3322
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发表时间:
2018-04
影响因子:
4.8
通讯作者:
Jiang Zejun
中科院分区:
文献类型:
--
作者:
Chang Shan;Zhang Li;Li Xiang;Jiang Zejun
Three gamma-ray millisecond pulsars (MSPs), PSR J1939+2134, PSR J1959+2048, and PSR J0034-0534, have been confirmed to have a common feature of phase-aligned in radio and gamma-ray bands. With a geometric (two-pole caustic) model and a physical outer gap model (revised 3D outer gap model) in a three dimensional (3D) retarded magnetic dipole with a perturbation magnetic field, the observed features of these MSPs are studied. In order to obtained the best-fitting model parameters, the Markov chain Monte Carlo technique is used and reasonable GeV band light curves for three MSPs are given. Our calculations indicate that MSPs emit high energy photons with smaller inclination angles (α ≈ 10°–50°), larger view angles (ζ ≈ 65°–100°), and smaller perturbation factor (ε ≈ −0.15–0.1). Note that the factor ε, describing the strength of the perturbed magnetic field, is all less than zero in these two models, so the magnetic field caused by current-induced play a leading role in the pulsed location of MSPs.
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影响因子:
4.9
作者:
Li, X.;Jiang, Z. J.;Zhang, L.
通讯作者:
Zhang, L.
影响因子:
64.8
作者:
D. Backer;S. Kulkarni;C. Heiles;Michael M. Davis;W. Goss
通讯作者:
D. Backer;S. Kulkarni;C. Heiles;Michael M. Davis;W. Goss
影响因子:
4.9
作者:
Li, X.;Zhang, L.
通讯作者:
Zhang, L.
DOI:
10.1086/527029
发表时间:
2007-11
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Tang;J. Takata;J. Jia;K. Cheng
通讯作者:
A. Tang;J. Takata;J. Jia;K. Cheng
DOI:
10.1088/0004-637x/793/2/79
发表时间:
2014-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Denis A. Leahy;M. H. Abdallah
通讯作者:
Denis A. Leahy;M. H. Abdallah