Cosmological Model-independent Gamma-ray Bursts Calibration and its Cosmological Constraint to Dark Energy
arXiv:1005.5055 · doi:10.1088/1475-7516/2012/04/025
Abstract
As so far, the redshift of Gamma-ray bursts (GRBs) can extend to which makes it as a complementary probe of dark energy to supernova Ia (SN Ia). However, the calibration of GRBs is still a big challenge when they are used to constrain cosmological models. Though, the absolute magnitude of GRBs is still unknown, the slopes of GRBs correlations can be used as a useful constraint to dark energy in a completely cosmological model independent way. In this paper, we follow Wang's model-independent distance measurement method and calculate their values by using 109 GRBs events via the so-called Amati relation. Then, we use the obtained model-independent distances to constrain CDM model as an example.
16 pages, 5 figures
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