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Gemini and Keck Put New Spin on Galaxy Formation
Gemini Keck New Spin Galaxy Formation
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2015/12/22
A team of Australian researchers used two Maunakea-based observatories – Gemini North and W. M. Keck Observatory – to discover why some galaxies are clumpy rather than spiral in shape and it appears t...
第十届中德星系和宇宙学研讨会(The 10th Sino-German Workshop on Galaxy and Cosmology)
第十届 中德星系和宇宙学 研讨会
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2013/11/1
Recent years have witnessed the establishment of the concordance cosmology. Under the Cold Dark Matter scenario, cosmic structures are characteristic of dark matter haloes embedded in the cosmic web....
Lensing Magnification and QSO-Galaxy Cross-Correlations: Observations, Theory and Simulations
Lensing Magnification QSO-Galaxy Cross-Correlations Theory
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2010/10/18
We review observations and gravitational lensing theory related to the magnification of background QSOs by intervening overdensities, and the induced cross-correlation between sources and foreground g...
Light on Dark Matter: Gravitational Lensing by Galaxy Clusters
Dark Matter Gravitational Lensing Galaxy Clusters
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2010/10/18
I discuss the use the weak gravitational lensing effect to study the mass distribution and dynamical state of a sample of 24 X-ray luminous clusters of galaxies. By comparing the mass and light distri...