机构

• 力学研究所 [4]
• 高能物理研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [5]

发表日期

• 2021 [1]
• 2011 [1]
• 2009 [2]
• 2008 [1]

学科主题

• Engineerin... [1]

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 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.   Behavior of vortex-induced vibration of a circular cylinder near a deformable wall with two degrees of freedom in steady flow 期刊论文  OAI收割 China Ocean Engineering, 2011, 卷号: 25, 期号: 4, 页码: 549-564 作者:  Yang B;  Ma JL;  Cui JS(崔金声);  Xu WH(徐万海) 收藏  |  浏览/下载：32/0  |  提交时间：2012/04/01 Vortex-Induced Vibration  Two Degrees Of Freedom  Deformable Wall  Circular Cylinder  Steady Flow  Very-Low Mass  Plane Boundary  Pipelines  Dynamics  Currents  Forces  Mode  Pipe   Experimental Study Of Vortex-Induced Vibrations Of A Cylinder Near A Rigid Plane Boundary In Steady Flow 期刊论文  OAI收割 Acta Mechanica Sinica, 2009, 页码: 51-63 作者:  Yang B(杨兵);  Gao FP(高福平);  Jeng DS;  Wu YX(吴应湘);  Yang B 收藏  |  浏览/下载：1025/154  |  提交时间：2009/08/03 Vortex-Induced Vibration  Cylinder Near A Plane Boundary  Steady Flow  Vortex Shedding  Very-Low Mass  Circular-Cylinder  Fluid Forces  Cross-Flow  Dynamics  Model   Physical Modeling And Parametric Study On Two-Degree-Of-Freedom Viv Of A Cylinder Near Rigid Wall 期刊论文  OAI收割 China Ocean Engineering, 2009, 卷号: 23, 期号: 1, 页码: 119-132 作者:  Yang B(杨兵);  Gao FP(高福平);  Li DH(李东晖);  Wu YX(吴应湘);  Yang B 收藏  |  浏览/下载：1035/232  |  提交时间：2009/08/03 Vortex-Induced Vibration  Cylinder Near A Wall  Two Degrees Of Freedom  Steady Flow  Gap-To-Diameter Ratio  Mass Ratio  Vortex-Induced Vibrations  Very-Low Mass  Plane Boundary  Dynamics  Currents  Freedom  Forces   An Approximate Method For Calculation Of Fluid Force And Response Of A Circular Cylinder At Lock-In 期刊论文  OAI收割 China Ocean Engineering, 2008, 页码: 371-384 作者:  Wang Y(王艺) 收藏  |  浏览/下载：562/28  |  提交时间：2009/08/03 Vortex-Induced Virbration  Circular Cyclinder  Lock-In  Phase  Lift  Amplitude  Vortex-Induced Vibrations  Very-Low Mass  Added-Mass  Frequency  Dynamics