Synthetic high mass X-ray binary populations in a cosmological frame

ARTALE, M. C.; PELLIZZA, L. J.; TISSERA, P. B.

Buenos Aires

Workshop; Second Workshop on Numerical and Observational Astrophysics From the First Structures to the Universe Today; 2011

High mass X-ray binaries are systems constituted by a massive star and a compact object. Understanding the evolution of these systems is very important to comprehend the origin and evolution of compact objects.In the last years, different authors investigated the properties of these sources, using population synthesis codes that include binary evolutionand metallicity effects. Considering their results we propose a model for HMXBs populations in nearby galaxies grafted onto hydrodynamical cosmological simulations. The simulations include star formation and chemical evolution in galaxies which let us obtain a self-consistent description of the HMXB populations in galaxies. We investigate the properties of HMXB populations in our models, the relation with their host galaxies and compare them with observations.