中国科学院机构知识库网格系统: 检索

Insight-HXMT observations of jet-like corona in a black hole X-ray binary MAXI J1820+070 期刊论文 OAI收割
Nature Communications, 2021, 卷号: 12, 页码: 1025
作者: You, Bei; Tuo, Yuoli; Li, Chengzhe; Wang, Wei; Zhang, Shuang-Nan

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收藏 | 浏览/下载：103/0 | 提交时间：2021/11/18

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

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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.

Low-energy Spectra of Gamma-Ray Bursts from Cooling Electrons 期刊论文 OAI收割
The Astrophysical Journal Supplement Series, 2018, 卷号: 234, 期号: 1, 页码: 3
作者: Huang, Yong-Feng; Geng, Jin-Jun; Zong, Hong-Shi ; Zhang, Bing; Wu, Xue-Feng

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收藏 | 浏览/下载：14/0 | 提交时间：2019/07/11

gamma-ray burst: general methods: numerical radiation mechanisms: non-thermal relativistic processes

Inefficient Cosmic-Ray Diffusion around Vela X: Constraints from HESS Observations of Very High-energy Electrons 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2018, 卷号: 866, 期号: 2, 页码: 143
作者: Kun, Fang; Ruo-Yu, Liu; Xiang-Yu, Wang; Fang K(方堃); Zhi-Qiu, Huang

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收藏 | 浏览/下载：20/0 | 提交时间：2019/10/11

cosmic rays

Probing Magnetic Fields of GRB X-Ray Flares with Polarization Observations 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2018, 卷号: 862, 期号: 2, 页码: 115
作者: Zong, HS; Song, LM; Wu, XF; Huang, YF; Geng, JJ

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收藏 | 浏览/下载：25/0 | 提交时间：2019/09/24

gamma-ray burst: general polarization radiation mechanisms: non-thermal relativistic processes

A Fallback Accretion Model for the Unusual Type II-P Supernova iPTF14hls 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2018, 卷号: 865, 期号: 2, 页码: 95
作者: Li B(李兵); Song LM(宋黎明)

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收藏 | 浏览/下载：49/0 | 提交时间：2019/09/24

stars: massive supernovae: general supernovae: individual (iPTF14hls) X-rays: bursts

Cosmic ray electron spectrum due to the dispersion of injection spectrum 期刊论文 OAI收割
CHINESE PHYSICS C, 2018, 卷号: 42, 期号: 7, 页码: 75001
作者: Liu W(刘伟); Chen, TL; Danzengluobu; Li, HJ; Liu, MY

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收藏 | 浏览/下载：85/0 | 提交时间：2019/09/24

electron spectrum cosmic rays source DAMPE

A model of fast radio bursts: collisions between episodic magnetic blobs 期刊论文 OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2018, 卷号: 18, 期号: 6, 页码: 61
作者: Li, LB; Li, B; Li B(李兵); Geng, JJ; Huang, YF

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收藏 | 浏览/下载：9/0 | 提交时间：2019/09/24

accretion accretion disks magnetic reconnection radio continuum: general

Modeling the most luminous supernova associated with a gamma-ray burst, sn 2011kl 期刊论文 iSwitch采集
The astrophysical journal, 2017, 卷号: 850, 期号: 2
作者: Wang,Shan-Qin; Cano,Zach; Wang,Ling-Jun; Zheng,WeiKang; Dai,Zi-Gao

收藏 | 浏览/下载：36/0 | 提交时间：2019/04/23

Stars: magnetars Supernovae: general Supernovae: individual (sn 2011kl)

Modeling The Most Luminous Supernova Associated with a Gamma-Ray Burst, SN 2011kl 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2017, 卷号: 850, 期号: 2, 页码: 148
作者: Z. WeiKang

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收藏 | 浏览/下载：31/0 | 提交时间：2019/08/27

stars: magnetars supernovae: general supernovae: individual (SN 2011kl)