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Using Dark Matter Haloes to Learn about Cosmic Acceleration: A New Proposal for a Universal Mass Function
Dark Matter Haloes Cosmic Acceleration
2011/1/11
Structure formation provides a strong test of any cosmic acceleration model because a successful dark energy model must not inhibit {\black or overpredict} the development of observed large-scale stru...
Examining the cosmic acceleration with the latest Union2 supernova data
latest Union2 supernova data
2010/11/16
In this Letter, by reconstructing the Om diagnostic and the deceleration parameter q from
the latest Union2 Type Ia supernova sample with and without the systematic error along with
the baryon acous...
Cosmic acceleration and the challenge of modifying gravity
Cosmic acceleration challenge of modifying gravity
2010/11/10
I briefly discuss the challenges presented by attempting to modify general relativity to obtain an explanation for the observed accelerated expansion of the universe. Foremost among these are the ques...
The observed late-time acceleration of the cosmic expansion constitutes a fundamental problem in modern theoretical physics and cosmology. In an attempt to weight the validity of a large number of dar...