language: en

Ultra light bosonic dark matter and CMB

Ivan Rodriguez Montoya * and Tonatiuh Matos Chassin *
Departamento de Fsica, Centro de Investigación y de Estudios Avanzados del IPN,
A.P. 14-740, 07000 México D.F., México.

In this work we report the cosmological effects that a species of Ultra Light Bosonic Dark Matter imprints in the Acoustic Peaks of the CMB, and some of its thermic features. We show that the effect of the Bose-Einstein statistics is small albeit perceptible, and is equivalent to an increase of non-relativistic matter. It is also noted the mass-to-temperature ratio necessary for being still a Dark Matter candidate. And it is needed a non-zero optical depth of Reionization.

I. INTRODUCTION