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Galaxy-galaxy lensing uses the weak distortion of background sources to measure the mean excess surface density profile, ΔΣ(r), around a sample of foreground lensing galaxies. We develop a method for ...
Lookback time and Chandra constrains on cosmological parameters
Cosmological parameters WMAP measurements lookback time dark energy Monte Carlo Markov Chains
2011/10/19
In this paper we combine the WMAP7 with lookback time and Chandra gas fraction data to constrain the main cosmological parameters and the equation of state for the dark energy. We find that the lookba...
Probing Cosmological Parameters with H II Galaxies and the new generation telescopes
Cosmological Parameters telescopes H II Galaxies
2009/6/12
Probing Cosmological Parameters with H II Galaxies and the new generation telescopes。
Probing cosmological parameters with H II galaxies。
A Note on Cosmological Parameters and the Topology of the Universe
Cosmological Parameters the Topology of the Universe
2010/10/15
Given the wealth of increasingly accurate cosmological observations, especially the recent results from the WMAP, and the development of methods and strategies in the search for cosmic topology, it is...