2017/10/31 by Alfaro, Jorge, González, Pablo
#FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc)
paper · doi:10.48550/arxiv.1711.00361
δ Gravity is a gravitational field model, where the geometry is governed by two symmetric tensors, gμν and gμν, and new matter fields (δ Matter fields) are added to the original matter fields. These new components appear motivated by a new symmetry, called δ symmetry. In previous works, the model is used to explain the expansion of the Universe without Dark Energy. This result and the additional contribution to the mass by δ Matter are motivations to study the Dark Matter effect with δ Gravity. In this work, we will derive the Non-Relativistic limit to obtain a correction to the rotation velocity in a galaxy, then we will analyze the most common galaxy density profiles to describe Dark Matter.