Lambda cold dark matter
A cosmological model consisting of the Cosmological constant Λ and the CDM.
Model of big-bang cosmology
The ΛCDM or Lambda-CDM model is a parametrization of the Big Bang cosmological model in which the universe contains three major components: first, a cosmological constant denoted by Lambda and associated with dark energy; second, the postulated cold dark matter ; and third, ordinary matter. It is frequently referred to as the standard model of Big Bang cosmology because it is the simplest model that provides a reasonably good account of the following properties of the cosmos:the existence and structure of the cosmic microwave background the large-scale structure in the distribution of galaxies the observed abundances of hydrogen, helium, and lithium the accelerating expansion of the universe observed in the light from distant galaxies and supernovaeRead on Wikipedia License Image-Source