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紫金山天文台 [18]
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期刊论文 [18]
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2013 [2]
2011 [3]
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2008 [3]
2007 [2]
2006 [2]
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Physics [18]
Engineerin... [2]
Optics [2]
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学科主题:Physics
专题:紫金山天文台
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Imaging coronal magnetic-field reconnection in a solar flare
期刊论文
NATURE PHYSICS, 2013, 卷号: 9, 期号: 8, 页码: 489-493
作者:
Su, Yang
;
Veronig, Astrid M.
;
Holman, Gordon D.
;
Dennis, Brian R.
;
Wang, Tongjiang
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  |  
浏览/下载:33/0
  |  
提交时间:2014/01/08
EVIDENCE FOR A SECOND COMPONENT IN THE HIGH-ENERGY CORE EMISSION FROM CENTAURUS A?
期刊论文
ASTROPHYSICAL JOURNAL LETTERS, 2013, 卷号: 770, 期号: 1, 页码: 0
作者:
Sahakyan, N.
;
Yang, R.
;
Aharonian, F. A.
;
Rieger, F. M.
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  |  
浏览/下载:19/0
  |  
提交时间:2014/01/08
galaxies: active
galaxies: individual (Cen A)
Very old isolated compact objects as dark matter probes
期刊论文
PHYSICAL REVIEW D, 2011, 卷号: 84, 期号: 10, 页码: 1-9
作者:
Fan, Yi-Zhong
;
Yang, Rui-Zhi
;
Chang, Jin
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  |  
浏览/下载:12/0
  |  
提交时间:2012/08/07
INTERACTING MASSIVE PARTICLES
ISOLATED NEUTRON-STARS
GLOBULAR-CLUSTERS
EMISSION
SUN
CANDIDATES
ENERGIES
CAPTURE
DWARFS
Effects of heavy ion temperature on low-frequency kinetic Alfven waves
期刊论文
PHYSICS OF PLASMAS, 2011, 卷号: 18, 期号: 10, 页码: 102101
作者:
Yang, L.
;
Wu, D. J.
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  |  
浏览/下载:21/0
  |  
提交时间:2012/08/07
dispersion (wave)
plasma Alfven waves
plasma light propagation
plasma temperature
Minimal seesaw model with S(4) flavor symmetry
期刊论文
Physics Letters B, 2011, 卷号: 700, 期号: 5, 页码: 316-321
Yang Rui-Zhi
;
Zhang He
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  |  
浏览/下载:10/0
  |  
提交时间:2012/01/17
NEUTRINO MASSES
CP-VIOLATION
PERMUTATION SYMMETRY
LEPTONS
MATRIX
A new method for orbit determination: Unit vector method
期刊论文
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 7, 页码: 1115-1119
作者:
Zhang Jing
;
Lu BenKui
;
Ma JingYuan
;
Xia Yi
;
Zhang Yang
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  |  
浏览/下载:11/0
  |  
提交时间:2011/12/08
orbit determination
unit vector method
perturbation
Solitary kinetic Alfven waves in dusty plasmas
期刊论文
PHYSICS OF PLASMAS, 2008, 卷号: 15, 期号: 8, 页码: 083703
作者:
Li, Yang-fang
;
Wu, D. J.
;
Morfill, G. E.
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浏览/下载:23/0
  |  
提交时间:2011/12/29
Solitary kinetic Alfven waves in dusty plasmas are studied by Considering the dust charge variation. The effect of the dust charge-to-mass ratio on the soliton solution is discussed. The Sagdeev potential is derived analytically with constant dust charge and then calculated numerically by taking the dust charge variation into account. We show that the dust charge-to-mass ratio plays an important role in the soliton properties. The soliton solutions are comprised of two branches. One branch is sub-Alfvenic and the soliton velocity is obviously smaller than the Alfven speed. The other branch is super-Alfvenic and the soliton velocity is very close to or greater than the Alfven speed. Both compressive and rarefactive solitons can exist. For the sub-Alfvenic branch
the rarefactive soliton is bell-shaped and it is much narrower than the compressive one. However
for the super-Alfvenic branch
the compressive soliton is bell-shaped and narrower
and the rarefactive one is broadened. When the charge-to-mass ratio of the dust grains is sufficiently high
the width of the rarefactive soliton
in the super-Alfvenic branch
will broaden extremely and a electron depletion will be observed. It is also shown that the bell-shaped soliton can transition to a cusped structure when the velocity is sufficiently high. (C) 2008 American Institute of Physics.
Low-noise 0.5 THz all-NbN superconductor-insulator-superconductor mixer for submillimeter wave astronomy
期刊论文
APPLIED PHYSICS LETTERS, 2008, 卷号: 92, 期号: 22, 页码: 222504
作者:
Li, Jing
;
Takeda, Masanori
;
Wang, Zhen
;
Shi, Sheng-Cai
;
Yang, Ji
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  |  
浏览/下载:39/0
  |  
提交时间:2011/12/29
JOSEPHSON TUNNEL-JUNCTIONS
SIS MIXERS
TUNING CIRCUIT
MILLIMETER
Electron acceleration by small-amplitude solitary kinetic Alfven wave in a low-beta plasma
期刊论文
CHINESE PHYSICS LETTERS, 2008, 卷号: 25, 期号: 2, 页码: 794-797
作者:
Wang De-Yu
;
Song Qi-Wu
;
Yang Lei
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  |  
浏览/下载:30/0
  |  
提交时间:2011/12/29
AURORA
Small-scale drift-Alfven wave driven zonal flows in plasmas
期刊论文
PHYSICS OF PLASMAS, 2007, 卷号: 14, 期号: 3, 页码: 032305
作者:
Kaladze, T. D.
;
Wu, D. J.
;
Yang, L.
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  |  
浏览/下载:13/0
  |  
提交时间:2012/02/05
CONVECTIVE CELLS
ROSSBY WAVES
GENERATION
TURBULENCE
EXCITATION
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