机构

• 新疆天文台 [3]
• 高能物理研究所 [1]
• 合肥物质科学研究院 [1]
• 紫金山天文台 [1]

采集方式

• OAI收割 [6]

内容类型

• 期刊论文 [6]

发表日期

• 2022 [1]
• 2021 [1]
• 2020 [1]
• 2019 [3]

学科主题

筛选

浏览/检索结果: 共6条，第1-6条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 Design and Development of Turn Insulation Automatic Wrapping System for CRAFT TF 期刊论文  OAI收割 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2022, 卷号: 32 作者:  He, Jian;  Wu, Jiefeng;  Wen, Wei;  Yan, Zhaohui;  Wu, Yu   |  收藏  |  浏览/下载：27/0  |  提交时间：2022/12/23 Wrapping  Conductors  Insulation  Fixtures  Windings  Rails  Magnetic heads  Comprehensive Research Facility for Fusion Technology (CRAFT)  Denavit-Hartenberg (D-H) method  motion control  toroidal field coil  turn insulation wrapping   The dissipation of toroidal magnetic fields and spin-down evolution of young and strongly magnetized pulsars 期刊论文  OAI收割 ASTRONOMISCHE NACHRICHTEN, 2021, 卷号: 342, 期号: 1-2, 页码: 369-376 作者:  Gao, Zhi Fu;  Shan, Hao;  Wang, Hui   |  收藏  |  浏览/下载：11/0  |  提交时间：2021/04/01 braking index  toroidal magnetic field  magnetars   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：40/0  |  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.   The Ohmic decay of dipolar toroidal magnetic fields of magnetars 期刊论文  OAI收割 ASTRONOMISCHE NACHRICHTEN, 2019, 卷号: 340, 页码: 1030-1034 作者:  Gao, Zhi-Fu;  Omar, Nurimangul;  Shi, Xiao-Chun;  Wang, Na   |  收藏  |  浏览/下载：11/0  |  提交时间：2020/03/12 magnetars  toroidal magnetic field  Ohmic decay   The Ohmic decay of dipolar toroidal magnetic fields of magnetars 期刊论文  OAI收割 ASTRONOMISCHE NACHRICHTEN, 2019, 页码: 5 作者:  Gao, Zhi-Fu;  Omar, Nurimangul;  Shi, Xiao-Chun;  Wang, Na   |  收藏  |  浏览/下载：22/0  |  提交时间：2020/03/19 magnetars  toroidal magnetic field  Ohmic decay   The evolution of magnetic field and spin-down of young pulsars 期刊论文  OAI收割 ASTRONOMISCHE NACHRICHTEN, 2019, 卷号: 340, 期号: 9-10, 页码: 1023-1029 作者:  Gao, Zhi-Fu;  Peng, Fang-Kun;  Wang, Na   |  收藏  |  浏览/下载：9/0  |  提交时间：2020/06/28 PSR J1640-4631  toroidal magnetic field  TPW heating