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浏览/检索结果: 共95条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Profile Variation in PSR B0355+54 over a Narrow Frequency Range 期刊论文  OAI收割 UNIVERSE, 2024, 卷号: 10, 期号: 11 作者:  Jiang, Shibo;  Li, Lin;  Yuen, Rai;  Yuan, Jianping;  Yao, Jumei   |  收藏  |  浏览/下载：22/0  |  提交时间：2024/12/11 pulsars  general-stars  neutron-radiation mechanisms  non-thermal  multi-frequency  PSR B0355+54 (PSR J0358+5413)   Evolution of Spin Period and Magnetic Field of the Crab Pulsar: Decay of the Braking Index by the Particle Wind Flow Torque 期刊论文  OAI收割 UNIVERSE, 2022, 卷号: 8, 期号: 12, 页码: 20 作者:  Zhang, Cheng-Min;  Cui, Xiang-Han;  Li, Di;  Wang, De-Hua;  Wang, Shuang-Qiang   |  收藏  |  浏览/下载：52/0  |  提交时间：2023/03/01 pulsars  general pulsars  individual  PSR B0531 + 21 (the Crab pulsar)  stars  neutron  supernovae   Investigation of Mode Changing, Pulse Nulling and Subpulse Drifting Properties in the Asymmetric Conal Triple Radio Pulsar B2319+60 期刊论文  OAI收割 RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2022, 卷号: 22, 期号: 11, 页码: 14 作者:  Chen, Jian-Ling;  Wen, Zhi-Gang;  Wang, Hong-Guang;  Wang, Na;  Yuen, Rai   |  收藏  |  浏览/下载：29/0  |  提交时间：2023/03/01 (stars:) pulsars: general  (stars:) pulsars: individual (PSR B2319+60)  stars: neutron   Timing and evolution of PSR B0950+08 期刊论文  OAI收割 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 卷号: 512, 期号: 4, 页码: 4689-4696 作者:  Huang, Hai-tao;  Zhou, Xia;  Yuan, Jian-ping;  Zheng, Xiao-Ping   |  收藏  |  浏览/下载：29/0  |  提交时间：2022/07/28 stars: evolution  stars: magnetic field  stars: neutron  pulsars: individual: PSR B0950+08   The low emission mode in PSR B0329+54 期刊论文  OAI收割 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 卷号: 512, 期号: 2, 页码: 1906-1915 作者:  Tu, Z. Y.   |  收藏  |  浏览/下载：41/0  |  提交时间：2022/06/07 stars: neutron  pulsars: general  pulsars: individual: PSR B0329+54   Asteroseismic Analyses of Slowly Pulsating B Star KIC 8324482: Ultraweak Element Mixing beyond the Central Convective Core 期刊论文  OAI收割 ASTROPHYSICAL JOURNAL, 2020, 卷号: 899, 期号: 1, 页码: 17 作者:  Wu T(吴涛);  Li Y(李焱);  Deng, Zhen-min;  Lin GF(林桂芳);  Song, Han-feng   |  收藏  |  浏览/下载：31/0  |  提交时间：2020/09/28 Asteroseismology  Stellar interiors  Stellar oscillations  Stellar structures  Fundamental parameters of stars  Stellar rotation  Stellar properties  B stars   Neon Abundances of B Stars in the Solar Neighborhood 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 896, 期号: 1 作者:  Alexeeva,Sofya;  Chen,Tianxiang;  Ryabchikova,Tatyana;  Shi,Weibin;  Sadakane,Kozo   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/12/06 B stars  Early-type stars  Solar neighborhood  Stellar abundances  Chemical abundances  Solar abundances   The correlation between glitch activity and pulse profile changes for the Crab pulsar 期刊论文  OAI收割 ASTROPHYSICS AND SPACE SCIENCE, 2020, 卷号: 365, 期号: 4, 页码: 70 作者:  Shang, L. H.;  Zhi, Q. J.;  Dang, S. J.;  Wang, Q. S.   |  收藏  |  浏览/下载：36/0  |  提交时间：2020/06/28 Pulsars  individual (PSR B0531+21)  Stars  neutron stars  X-rays  stars   Second Braking Index of Intermittent Pulsar and Nulling Pulsar 期刊论文  OAI收割 Publications of the Astronomical Society of the Pacific, 2020, 卷号: 132, 期号: 1009, 页码: 34201 作者:  Rusul, A.;  Zheng, X. P.;  Esamdin, A.;  Guo, L.   |  收藏  |  浏览/下载：14/0  |  提交时间：2021/06/25 pulsars: general-pulsars  individual (PSR B1931+24)-stars  neutron  Astronomy & Astrophysics   The braking index of PSR B0540-69 and the associated pulsar wind nebula emission after spin-down rate transition 期刊论文  OAI收割 Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 494, 页码: 1865-1870 作者:  HXMT   |  收藏  |  浏览/下载：54/0  |  提交时间：2022/02/08 stars: magnetic field  stars: neutron  pulsars: general  Astrophysics  - High Energy Astrophysical Phenomena  Abstract: In 2011 December, PSR B054-69 experienced a spin-down rate transition (SRT), after which the spin-down power of the pulsar increased by $\sim 36{{\ \rm per\ cent}}$. About 1000 d after the SRT, the X-ray luminosity of the associated pulsar wind nebula (PWN) was found to brighten by $32\pm 8{{\ \rm per\ cent}}$. After the SRT, the braking index n of PSR B0540-69 changes from n = 2.12 to 0.03 and then keeps this value for about five years before rising to n = 0.9 in the following years. We find that most of the current models have difficulties in explaining the measured braking index. One exceptive model of the braking index evolution is the increasing dipole magnetic field of PSR B0540-69. We suggest that the field increase may result from some instabilities within the pulsar core that enhance the poloidal component at the price of toroidal component of the magnetic field. The increasing dipole magnetic field will result in the X-ray brightening of the PWN. We fit the PWN X-ray light curve by two models: one assumes a constant magnetic field within the PWN during the brightening and the other assumes an enhanced magnetic field proportional to the energy density of the PWN. It appears that the two models fit the data well, though the later model seems to fit the data a bit better. This provides marginal observational evidence that magnetic field in the PWN is generated by the termination shock. Future high-quality and high-cadence data are required to draw a solid conclusion.