Inside Stars

We announce a new theory of the internal constitution of stars, and the sources of stellar energy according to General Relativity. This is an alternative to the conventional theory of stars which was introduced in the 1920's on the basis of classical mechanics and thermodynamics. The conventional theory came to the model of gaseous stars, wherein hydrogen of the extremely hot and dense central region is entrained in energy release due to thermonuclear fusion. In contrast, the common consideration of a star and its field according to General Relativity comes to the model of liquid stars. Such a star is mostly homogeneous inside, while energy is released along all its volume (not only in the central region) due to the conversion of the liquid substance into energy according to Einstein's relation. A new classification of stars is introduced according to the space breaking of their fields. Regular stars (including the Sun), the super-giants, white dwarfs, Wolf-Rayet stars, and neutron stars are considered. The introduced liquid model matches new observational evidences for the state of condensed matter inside stars; in particular, that the Sun consists of the high temperature liquid metallic hydrogen. Our book of the same title is user preparation.