arXiv:2004.13648astro-ph.CO
Testing Modified Gravity theory (MOG) with Type Ia Supernovae, Cosmic Chronometers and Baryon Acoustic Oscillations
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Abstract
We analyse the MOdified Gravity (MOG) theory, proposed by Moffat, in a cosmological context. We use data from Type Ia Supernovae (SNe Ia), Baryon Acoustic Oscillations (BAO) and Cosmic Chronometers (CC) to test MOG predictions. For this, we perform $χ^2$ tests considering fixed values of $H_0$ and $V_G$, the self-interaction potential of one of the scalar fields in the theory. Our results show that the MOG theory is in agreement with all data sets for some particular values of $H_0$ and $V_G$, being the BAO data set the most powerful tool to test MOG predictions, due to its constraining power.
[part 2/2] The result discussed at the link above comes from study of a the X-ray luminous and large MACS J1149.5+2223 from the MAssive Cluster Survey (MACS, <https://iopscience.iop.org/article/10.1086/320958>), redshift ~ 0.544 (around 5 billion light-years distance). As with…
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