中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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  |  浏览/下载:52/0  |  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.  
A simplified physically based coupled rainfall threshold model for triggering landslides SCI/SSCI论文  OAI收割
2015
作者:  
Wu Y. M.;  Lan, H. X.;  Gao, X.;  Li, L. P.;  Yang, Z. H.
收藏  |  浏览/下载:73/0  |  提交时间:2015/12/09
Modeling Soil Solute Release into Runoff and Transport with Runoff on a Loess Slope 期刊论文  OAI收割
JOURNAL OF HYDROLOGIC ENGINEERING, 2013, 卷号: 18, 期号: 5, 页码: 527-535
作者:  
Dong, Wencai;  Wang, Quanjiu
收藏  |  浏览/下载:19/0  |  提交时间:2016/01/06
physically based simulation of thin-shell objects burning 会议论文  OAI收割
Computer Graphics International Conference 2009, Victoria, CANADA, MAY 26-29,
Liu Shiguang; Liu Qiguang; An Tai; Sun Jizhou; Peng Qunsheng
  |  收藏  |  浏览/下载:31/0  |  提交时间:2011/03/20
实时交互的植物虚拟舞蹈动画 学位论文  OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2005
陈翀
收藏  |  浏览/下载:70/0  |  提交时间:2015/09/02
三维植物动画:从随风摇曳到翩翩起舞 学位论文  OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2004
李昌智
收藏  |  浏览/下载:57/0  |  提交时间:2015/09/02