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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
高能物理研究所 [3]
生物物理研究所 [1]
新疆生态与地理研究所 [1]
烟台海岸带研究所 [1]
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OAI收割 [6]
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期刊论文 [4]
会议论文 [2]
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2021 [1]
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2012 [1]
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Immunology [1]
Physics [1]
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Synchronous X-ray/Optical QPOs from the Black Hole LMXB MAXI J1820+070
期刊论文
OAI收割
Monthly Notices of the Royal Astronomical Society, 2021
作者:
HXMT
  |  
收藏
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浏览/下载:52/0
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提交时间:2022/02/08
black hole physics
Low Mass X-ray Binaries
accretion
accretion
discs
stars: individual (MAXI J1820+070)
Astrophysics - High Energy
Astrophysical Phenomena
Abstract: We present high-speed optical photometry from SAAO and SALT on the black hole LMXB MAXI J1820+070 (ASSASN-18ey), some of it simultaneous with NICER, Swift and Insight-HXMT X-ray coverage. We detect optical Quasi-Periodic Oscillations (QPOs) that move to higher frequencies as the outburst progresses, tracking both the frequency and evolution of similar X-ray QPOs previously reported. Correlated X-ray/optical data reveal a complex pattern of lags, including an anti-correlation and a sub-second lag that evolve over the first few weeks of outburst. They also show correlated components separated by a lag equal to the QPO period roughly centered on zero lag, implying that the inter-band variability is strongly and consistently affected by these QPOs at a constant phase lag of roughly ±Ю The synchronisation of X-ray and optical QPOs indicates that they must be produced in regions physically very close to each other
we thus propose that they can be explained by a precessing jet model, based on analogies with V404 Cyg and MAXI J1348-630.
The Temporal Phenomena of Black Hole Transient XTE J1650-500 in Its 2001-2002 Outburst
期刊论文
OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2018, 卷号: 42, 期号: 1, 页码: 48-68
作者:
Chen Li
;
Lu Yu
;
Yan Lin-li
;
Li Zi-jian
;
Qu JL(屈进禄)
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收藏
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浏览/下载:20/0
  |  
提交时间:2019/09/24
X-rays
binaries
accretion
accretion
disks
quasi-periodic
oscillations
time
lags
Spatial discretization of distributed hydrological response units for SWAT
会议论文
OAI收割
Remote Sensing and Modeling of Ecosystems for Sustainability XI, San Diego, CA, United states, August 18, 2014 - August 20, 2014
作者:
Gao, Zhiqiang
收藏
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浏览/下载:37/0
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提交时间:2015/08/10
Land use
Hydrological properties
Hydrological response unit
Runoff lags
Semi distributed hydrological models
Soil and water assessment tool
Spatial discretizations
SWAT
Taihu Lake basin
A time lag insensitive approach for estimating HIV-1 transmission direction
期刊论文
OAI收割
AIDS, 2012, 卷号: 26, 期号: 8, 页码: 921-928
Yang, Jing
;
Ge, Meng
;
Pan, XianMing
;
潘宪明
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2013/12/24
criminal cases
HIV epidemics
HIV transmission direction
patterns
sampling time lags
transmission pairs
Hard X-ray lags of Cygnus X-1 on short timescales
期刊论文
OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2010, 卷号: 53, 期号: 1, 页码: #REF!
作者:
Jin, J
;
Lu Y(卢宇)
;
Qu JL(屈进禄)
;
Li TB(李惕碚)
;
Lu, Y
收藏
  |  
浏览/下载:16/0
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提交时间:2016/04/12
spectral lags
Cygnus X-1
data analysis
Using GM (1,1) models to predict groundwater level in the lower reaches of Tarim River: A demonstration at Yingsu section
会议论文
OAI收割
5th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD, Jinan, Shandong, China, 2008
Xu
;
Jianhua1
;
Chen
;
Yaning2
;
Li
;
Weihong2
收藏
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浏览/下载:28/0
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提交时间:2011/08/23
Cybernetics - Forecasting - Fuzzy logic - Fuzzy systems - Granular materials - Groundwater - Rivers - System theory - Underground reservoirs - Accuracy tests - Complex systems - Grey forecasting - Grey system theories - Grey systems - Groundwater levels - Monitoring wells - Tarim rivers - Time lags - White colors