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CAS IR Grid
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金属研究所 [2]
地质与地球物理研究所 [1]
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大连化学物理研究所 [1]
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OAI收割 [10]
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期刊论文 [10]
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1999 [1]
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High plasma cut-off frequency blocks the radio emission from accreting millisecond X-ray pulsar SAX J1808.4-3658
期刊论文
OAI收割
Astrophysics and Space Science, 2020, 卷号: 365, 期号: 3, 页码: 47
作者:
Wang, S. Q.
;
Zhang, C. M.
  |  
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2021/04/12
(Stars:) pulsar: individual: SAX J1808.4-3658
Stars
neutron
X-rays
stars
X-rays
binaries
X-rays: general
neutron-star
magnetic-field
optical counterpart
xmm-newton
binary
evolution
constraints
transient
sax-j1808.4-3658
oscillations
Astronomy & Astrophysics
Propagation properties of foreshock cavitons: Cluster observations
期刊论文
OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2020, 卷号: 63, 期号: 1, 页码: 173-182
作者:
Wang, MengMeng
;
Yao, ShuTao
;
Shi, QuanQi
;
Zhang, Hui
;
Tian, AnMin
  |  
收藏
  |  
浏览/下载:44/0
  |  
提交时间:2020/05/18
foreshock transient phenomena
cavitons
nonlinear evolution of ULF waves
propagation and evolution properties of structures
multipoint spacecraft methods
An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242
期刊论文
OAI收割
Astronomy and Astrophysics, 2020, 卷号: 641, 页码: A101
作者:
HXMT
  |  
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2022/02/08
accretion
accretion disks
black hole physics
X-rays: binaries
time
Astrophysics - High Energy Astrophysical Phenomena
Abstract:
Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature simultaneous changes in the spectral hardness and the power density spectrum (PDS). They occur at a crucial time in the evolution of these systems, when the accretion disc emission starts to dominate over coronal emission. Flip-flops remain a poorly understood phenomenon, so we aim to thoroughly investigate them in a system featuring several such transitions.
Methods: Within the multitude of observations of
Swift J1658.2-4242
during its outburst in early 2018, we detected 15 flip-flops, enabling a detailed analysis of their individual properties and the differences between them. We present observations by XMM-Newton, NuSTAR, Astrosat, Swift, Insight-HXMT, INTEGRAL, and ATCA. We analysed their light curves, searched for periodicities, computed their PDSs, and fitted their X-ray spectra, to investigate the source behaviour during flip-flop transitions and how the interval featuring flip-flops differs from the rest of the outburst.
Results: The flip-flops of Swift J1658.2-4242 are of an extreme variety, exhibiting flux differences of up to 77% within 100 s, which is much larger than what has been seen previously. We observed radical changes in the PDS simultaneous with the sharp flux variations, featuring transitions between the quasi-periodic oscillation types C and A, which have never been observed before. Changes in the PDS are delayed, but more rapid than changes in the light curve. Flip-flops occur in two intervals within the outburst, separated by about two weeks in which these phenomena were not seen. Transitions between the two flip-flop states occurred at random integer multiples of a fundamental period of 2.761 ks in the first interval and 2.61 ks in the second. Spectral analysis reveals the high and low flux flip-flop states to be very similar, but distinct from intervals lacking flip-flops. A change of the inner temperature of the accretion disc is responsible for most of the flux difference in the flip-flops. We also highlight the importance of correcting for the influence of the dust scattering halo on the X-ray spectra.
Control of transient gain absorption via tunneling and incoherent pumping in triple quantum dots
期刊论文
OAI收割
Laser Physics, 2016, 卷号: 27, 期号: 1
作者:
Tian,Si-Cong
;
Zhang,Xiao-Jun
;
Wan,Ren-Gang
;
Wang,Li-Jie
;
Shu,Shi-Li
  |  
收藏
  |  
浏览/下载:50/0
  |  
提交时间:2021/12/06
triple quantum dots
tunneling
transient evolution
Surface damage and structure evolution of recrystallized tungsten exposed to ELM-like transient loads
期刊论文
OAI收割
NUCLEAR FUSION, 2016, 卷号: 56, 期号: 3, 页码: 036021
作者:
Yuan, Y.
;
Du, J.
;
Wirtz, M.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2017/09/05
Tungsten
Surface Damage
Structure Evolution
Transient Heat Loads
Precipitation Behaviors in the Diffusion Affected Zone of TLP Bonded Single Crystal Superalloy Joint
期刊论文
OAI收割
Journal of Materials Science & Technology, 2015, 卷号: 31, 期号: 2, 页码: 129-134
N. C.
;
Liu Sheng, J. D.
;
Jin, T.
;
Sun, X. F.
;
Hu, Z. Q.
收藏
  |  
浏览/下载:140/0
  |  
提交时间:2015/05/08
Single crystal superalloy
Transient liquid phase bonding (TLP)
Microstructure
Micro-hardness
base superalloys
filler alloy
transient
solidification
microstructure
evolution
Phase control of light amplification in steady and transient processes in an inverted-Y atomic system with spontaneously generated coherence
期刊论文
OAI收割
chinese physics b, 2014, 卷号: 23, 期号: 4
作者:
Tian Si-Cong
;
Tong Cun-Zhu
;
Wan Ren-Gang
;
Ning Yong-Qiang
;
Qin Li
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2015/03/26
spontaneously generated coherence
gain without inversion
transient evolution
relative phase
Microstructural Evolution of a Ni-base Alloy DZ468 Joint Bonded with a New Co-base Filler
期刊论文
OAI收割
Journal of Materials Science & Technology, 2014, 卷号: 30, 期号: 5, 页码: 480-486
Y. H. Jing
;
Z. Zheng
;
E. Z. Liu
;
Y. Guo
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2014/07/03
Transient liquid phase (TLP) bonding
Microstructure evolution
Ni-base
alloy
Co-base filler
hot corrosion-resistance
transient liquid-phase
compressive
properties
high-strength
superalloy
gamma
cast
Progress in polymer solar cell
期刊论文
OAI收割
chinese science bulletin, 2007, 卷号: 52, 期号: 2, 页码: 145-158
Li LG
;
Lu GH
;
Yang XN
;
Zhou EL
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2010/07/13
PHOTOINDUCED ELECTRON-TRANSFER
FULLERENE BULK HETEROJUNCTION
OPEN-CIRCUIT VOLTAGE
PHOTOVOLTAIC DEVICES
CONJUGATED POLYMER
TRANSIENT PHOTOCONDUCTIVITY
ELECTROLUMINESCENT POLYMERS
MORPHOLOGY EVOLUTION
CONDUCTING POLYMERS
OPTICAL-PROPERTIES
Photoelectrochemical studies of H-2 evolution in aqueous methanol solution photocatalysed by Q-ZnS particles
期刊论文
OAI收割
journal of photochemistry and photobiology a-chemistry, 1999, 卷号: 125, 期号: 1-3, 页码: 135-138
作者:
Lin, Y
;
Lin, RF
;
Yin, F
;
Xiao, XR
;
Wu, M
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2015/11/10
photocatalysis
H-2 evolution
transient photocurrent
steady state photocurrent