What Do We See: Signs Of Quantum Gravity Or Dark Energy?

Abstract

Cosmological observations of remote objects may be interpreted in the model of low-energy quantum gravity by the author without dark energy. The theoretical Hubble diagram of the model fits observations very well. Additionally, this diagram should be the multivalued function of the redshift for soft and hard radiations; perhaps, this feature may be seen for the GRBs data set with the Yonetoku calibration. In the model, the ratio H(z)/(1+z) should be equal to the Hubble constant; the constancy of this ratio is verified up to z<2 with high probability using compilations of H(z) observations.