Utilizing the Updated Gamma-Ray Bursts and Type Ia Supernovae to Constrain the Cardassian Expansion Model and Dark Energy

Figure 3

(a) The contour confidence levels of in the CDM model from the data for 82 GRBs () (dark cyan dash-dotted lines), 580 SNe Ia (blue dashed lines), and 82 GRBs + 580 SNe Ia (red solid lines), respectively. The contours correspond to 1, 2, and confidence regions. (b) The probability versus the transition redshift derived from the GRB and SNe Ia sample.

(a)

(b)