Probing noncommutativity with astrophysical data

It is well known that noncommutativity is commonly used in theories of grand unifications like strings or loops, however its consequences in standard astrophysics it is not well understood. For those reasons, this paper is devoted to study the astrophysical consequences of noncommutativity, focusing in stellar dynamics and rotational curves of galaxies. We start exploring stars with incompressible and polytropic fluids respectively, with the addition of a noncommutative matter. In both cases, we propose an appropriate constriction based in the difference between a traditional and an anomalous behavior. As a complement, we explore the rotation curves of galaxies assuming that the dark matter halo is a noncommutative fluid, obtaining a value of the free parameter through the analysis of twelve LSB galaxies; in this sense our results are compared with traditional models like Pseudoisothermal, Navarro-Frenk-White and Burkert.