The Possibility of Spontaneous Gravitational Contraction of a Gas Cloud in Outer Space with Simultaneous Cooling of the Cloud

Gas clouds in outer space always lose energy due to electromagnetic radiation, i.e., are non-isolated thermodynamic systems. Under certain conditions, the energy loss of the gas cloud can lead to replacement of the process of dispersion by the process of spontaneous gravitational compression. Under these conditions of the initiation process of spontaneous compression, the gravitational energy released by the compression of the cloud will correspond to losses due to electromagnetic radiation it experiences. Furthermore, the cloud will shrink with a decrease in internal energy with constant enthalpy. As a result, the process of spontaneous gravitational compression of a gas cloud in outer space will be accompanied by a decrease in the temperature of the cloud. This mechanism of compression of a gas cloud with simultaneous cooling could, at a certain stage of the evolution of the universe, govern one of the possible processes of formation of a hidden mass of galaxies.