Constraints on cosmological models and reconstructing the acceleration history of the Universe with gamma-ray burst distance indicators

摘要: Gamma-ray bursts (GRBs) have been regarded as standard candles at very high redshift for cosmology research. We proposed a new method to calibrate GRB distance indicators with Type Ia supernova (SNe Ia) data in completely cosmology-independent way avoid the circularity problem that had limited direct use of GRBs probe [N. Liang, W.K. Xiao, Y. Liu, and S.N. Zhang, Astrophys. J. 685, 354 (2008).]. In this paper, simple is provided combine into joint observational analysis constrain cosmological models; those SNe points used calibrating are not any correlation between them. find Lambda CDM model consistent 1-sigma confidence region, using calibrated interpolating method, Constitution set Ia, cosmic microwave background radiation from Wilkinson Microwave Anisotropy Probe five year observation, baryonic acoustic oscillation spectroscopic Sloan Digital Sky Survey Data Release 7 galaxy sample, x-ray baryon mass fraction clusters galaxies, Hubble parameter versus data. Comparing constraints without GRBs, we contribution slight shift regions parameters better enclose model. Finally, reconstruct acceleration history Universe up z > 6 moduli some features deviate seem favor oscillatory however, further investigations needed understand situation.