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理论物理研究所 [5]
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期刊论文 [20]
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Water in confinement of epoxy layer and hydroxylated (001) gamma-alumina: An atomistic simulation view
期刊论文
OAI收割
JOURNAL OF MOLECULAR LIQUIDS, 2020, 卷号: 307, 页码: 10
作者:
Soleymanibrojeni, Mohammad
;
Shi, Hongwei
;
Liu, Fuchun
;
Han, En-Hou
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2021/02/02
Water at interface
Subdiffusion behavior
Power spectra
RDF
SDF
Hydrogen bond energy
Water in confinement of epoxy layer and hydroxylated (001) gamma-alumina: An atomistic simulation view
期刊论文
OAI收割
JOURNAL OF MOLECULAR LIQUIDS, 2020, 卷号: 307, 页码: 10
作者:
Soleymanibrojeni, Mohammad
;
Shi, Hongwei
;
Liu, Fuchun
;
Han, En-Hou
  |  
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2021/02/02
Water at interface
Subdiffusion behavior
Power spectra
RDF
SDF
Hydrogen bond energy
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:58/0
  |  
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.
Cross-Species Investigation on Resting State Electroencephalogram
期刊论文
OAI收割
BRAIN TOPOGRAPHY, 2019, 卷号: 32, 期号: 5, 页码: 808-824
作者:
Zhang, Fengrui
;
Wang, Feixue
;
Yue, Lupeng
;
Zhang, Huijuan
;
Peng, Weiwei
  |  
收藏
  |  
浏览/下载:91/0
  |  
提交时间:2019/10/25
Electroencephalogram (EEG)
Resting state
Power spectra
1
f characteristic
Across-species comparison
Identification of Superoxide O-2(-) during Thermal Decomposition of Molten KNO3-NaNO2-NaNO3 Salt by Electron Paramagnetic Resonance and UV-Vis Absorption Spectroscopy
期刊论文
OAI收割
CHINESE JOURNAL OF CHEMICAL PHYSICS, 2017, 卷号: 30, 期号: 4, 页码: 372-378
作者:
Liu, ST
;
Su, T
;
Zhang, P
;
Fei, ZJ
;
Liu, HT
  |  
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2018/08/30
Solar Power-plants
Energy Storage
Potassium-nitrate
Fused-salts
Spectra
Matrix
Chemistry
Oxygen
O2
Molecules
Evolution characteristics of electromagnetic power radiated in lightning discharge processes
期刊论文
iSwitch采集
Spectroscopy and spectral analysis, 2015, 卷号: 35, 期号: 6, 页码: 1474-1478
作者:
Zhao Jin-cui
;
Yuan Ping
;
Cen Jian-yong
;
Li Ya-jun
;
Wang Jie
收藏
  |  
浏览/下载:134/0
  |  
提交时间:2019/09/04
Lightning spectra
Electromagnetic power
Luminance of the channel
Conductivity
Detecting low-dimensional chaos by the "noise titration" technique: Possible problems and remedies
期刊论文
OAI收割
CHAOS SOLITONS & FRACTALS, 2012, 卷号: 45, 期号: 3, 页码: 213-223
作者:
Gao JB(高剑波)
;
Hu J
;
Mao X
;
Tung WW
;
Gao, JB
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/01/18
Nonlinear Time-Series
Direct Dynamical Test
Power-Law Spectra
Stochastic Resonance
Embedding Dimension
Deterministic Chaos
Strange Attractors
Predictability
Multistability
Equations
Constraints on primordial gravitational waves with variable sound speed from current CMB data
期刊论文
OAI收割
PHYSICAL REVIEW D, 2012, 卷号: 86, 期号: 12, 页码: 123512
作者:
Huang, QG
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2014/04/24
PROBE WMAP OBSERVATIONS
OBSERVATIONS COSMOLOGICAL INTERPRETATION
POLARIZATION POWER SPECTRA
INFLATIONARY UNIVERSE
ANISOTROPY
TEMPERATURE
FLATNESS
HORIZON
Spectra of L-band ionospheric scintillation over Nanjing
期刊论文
OAI收割
CHINESE SCIENCE BULLETIN, 2012, 卷号: 57, 期号: 25, 页码: 3375-3380
作者:
Fang HanXian
;
Yang ShengGao
;
Wang SiCheng
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2014/12/15
ionospheric scintillation
scintillation power spectra
electronic density irregularity
spectra index
Testing inflationary consistency relations by the potential CMB observations
期刊论文
OAI收割
CLASSICAL AND QUANTUM GRAVITY, 2011, 卷号: 28, 期号: 23, 页码: 235003
作者:
Huang, QG
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2013/05/17
POLARIZATION POWER SPECTRA
MICROWAVE BACKGROUND POLARIZATION
RELIC GRAVITATIONAL-WAVES
PROBE WMAP OBSERVATIONS
COSMOLOGICAL PERTURBATIONS
EARLY UNIVERSE
GRAVITY-WAVES
K-INFLATION
ANISOTROPY
TEMPERATURE