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A central theme in cosmology is the perplexing fact that the Universe is undergoing an accelerating expansion. The latter, one of the most important and challenging current problems in cosmology, rep...
Cosmic acceleration and the challenge of modifying gravity
Cosmic acceleration modifying gravity
2010/12/24
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 quest...
A central theme in cosmology is the perplexing fact that the Universe is undergoing
an accelerating expansion. The latter, one of the most important and challenging current
problems in cosmology, re...
Examining the cosmic acceleration with the latest Union2 supernova data
cosmic acceleration latest Union2 supernova data
2010/12/20
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...