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浏览/检索结果: 共8条，第1-8条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Explaining high braking indices of magnetars SGR 0501+4516 and 1E 2259+586 using the double magnetic-dipole model 期刊论文  OAI收割 ASTRONOMISCHE NACHRICHTEN, 2021, 卷号: 342, 期号: 1-2, 页码: 7 作者:  Yan, Fang-Zhou;  Gao, Zhi-Fu;  Yang, Wen-Shen;  Dong, Ai-Jun   |  收藏  |  浏览/下载：25/0  |  提交时间：2021/04/01 1E 2259+586  double magnetic-dipole model  magnetar braking index  SGR 0501+4516   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：66/0  |  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.   Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP 期刊论文  OAI收割 PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2013, 卷号: 532, 期号: 4, 页码: 119-244 作者:  ALEPH Collaboration;  DELPHI Collaboration;  OPAL Collaboration;  LEP Electroweak Working Grp 收藏  |  浏览/下载：23/0  |  提交时间：2015/12/02 OF-MASS ENERGIES  TOP-QUARK MASS  CARLO EVENT GENERATOR  HADRONIC Z-DECAYS  INVARIANT YFS EXPONENTIATION  ANOMALOUS MAGNETIC-MOMENT  (UN)STABLE W+W-PRODUCTION  FERMION-LOOP SCHEME  COLOR DIPOLE MODEL  LEADING ORDER QCD   Microwave absorption properties of Ni/(C, silicides) nanocapsules 期刊论文  OAI收割 Nanoscale Research Letters, 2012, 卷号: 7, 页码: 41281 J. J. Jiang; H. Wang; H. H. Guo; T. Yang; W. S. Tang; D. Li; S. Ma; D. Y. Geng; W. Liu; Z. D. Zhang 收藏  |  浏览/下载：30/0  |  提交时间：2013/02/05 Microwave absorption properties  Magnetic nanocapsules  Complex  permittivity  Electric dipole model  carbon nanotubes  x-band  permittivity   A Practicable Method for Ferromagnetic Object Moving Direction Identification 期刊论文  OAI收割 IEEE TRANSACTIONS ON MAGNETICS, 2012, 卷号: 48, 期号: 8, 页码: 2340-2345 Zhou, QW; Tong, GJ; Li, BQ; Yuan, XB 收藏  |  浏览/下载：62/0  |  提交时间：2013/04/25 Cross relation  direction identification  ferromagnetic objects  magnetic anomaly signal  magnetic dipole model  target tracking  wireless sensor network  2-axis magnetic sensor   The gyrosynchrotron radiation spectrum in a nonuniform source 期刊论文  OAI收割 CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS  , 2006, 卷号: 6, 期号: 2, 页码: 260-264 Zhou AH 收藏  |  浏览/下载：29/0  |  提交时间：2012/02/07 ANISOTROPIC ELECTRON DISTRIBUTIONS  GYRO-SYNCHROTRON EMISSION  SOLAR MICROWAVE-BURSTS  MAGNETIC DIPOLE FIELD  X-RAY-BURSTS  SELF-ABSORPTION  ENERGY  MODEL  LOOP   Effects of gyroresonance absorption and self absorption on the gyrosynchrotron radiation spectrum 期刊论文  OAI收割 CHINESE PHYSICS LETTERS, 2004, 卷号: 21, 期号: 10, 页码: 2067-2070 作者:  Zhou, AH;  Su, YN;  Huang, GL 收藏  |  浏览/下载：20/0  |  提交时间：2012/12/22 GYRO-SYNCHROTRON EMISSION  MAGNETIC DIPOLE FIELD  X-RAY-BURSTS  MICROWAVE  EXPRESSIONS  MODEL   Non-universal gaugino masses in supersymmetric SO(10) 期刊论文  OAI收割 NUCLEAR PHYSICS B, 2002, 卷号: 624, 期号: 40910, 页码: 81-94 作者:  Chamoun, N;  Huang, CS;  Liu, C;  Wu, XH;  Wu, XH , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.   |  收藏  |  浏览/下载：19/0  |  提交时间：2012/08/29 Cp-violating Phases  Anomalous Magnetic-moment  Grand Unified Model  Supergravity Models  Standard Model  Electroweak Breaking  Coupling-constants  Symmetry-breaking  Dipole-moment  Brane Models