Regular Article - Theoretical Physics
Are Type Ia supernova powerful tool to detect anisotropic expansion of the Universe?
Department of Physics, Lorestan University, Khorramabad, Iran
2 Western Sydney University, Locked Bag 1791, Penrith, NSW, 2751, Australia
3 Department of Physics, University of Guilan, Rasht, Iran
* e-mail: firstname.lastname@example.org
Accepted: 22 July 2020
Published online: 18 August 2020
In this paper, we present a detailed analysis of the dark energy dipole using Union2, Pantheon and GRB dataset in Chameleon and Teleparallel dark energy models, in comparison with CDM. Both models are extensively studied in recent years and our result shows that with Union2 and Pantheon data, the preferred direction of the anisotropy in both models are very close to each other as well as with those obtained in some studies for CDM. However, when the models fitted with a combination of Union 2 and GRB, the statistical analysis slightly favors the Chameleon cosmology over Teleparallel gravity, with the maximum anisotropic direction of , in galactic coordinate system, comparable with -dipole result in Keck-VLT data and LCDM.
© The Author(s), 2020