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We probe the possible anisotropy of the Universe by using the joint light-curve analysis (JLA) compilation of Type Ia supernovae. We apply the Markov Chain Monte Carlo method to constrain the amplitude and direction of anisotropy in three cosmological models. For the dipole-modulated Λ cold dark matter (ΛCDM) model, the anisotropic amplitude is consistent with zero at 68 per cent cl, and has an upper bound AD wCDM and Chevallier–Polarski–Linder (CPL) models. Thus, the Universe is still well consistent with the isotropy according to the JLA compilation.
Lin et al. (Mon,) studied this question.