The topic today: problems in the Standard Cosmological Model (LCDM), inflation and scalar fields! STANDARD COSMOLOGICAL MODEL: ISSUES Despite the success of the Standard Cosmological model (or LCDM), today it is widely accepted that it is not complete, even if … Continue reading
Recombination When the Universe cooled up to , the neutrinos decoupled from the primordial plasma (soup). Protons, electrons and photons remained tighly coupled by 2 main types of scattering processes: 1) Compton scattering: 2) Coulomb scattering: Then, there were little … Continue reading
Today, a new post in this fascinating Cosmology thread… The Big Bang Nucleosynthesis in a nutshell When the Universe was young, about , the following events happen 1st. Some particles remained in thermodynamical equilibrium with the primordial plasma (photons, positrons … Continue reading