Rotating Boson Star Under Weak Gravity Potential

摘要

190.1 Introduction Boson stars are hypothetical and astronomical objects formed of self gravitating field of bosonic particles. These particles may be detected by the gravitational radiation emitted by a pair of co-orbiting boson stars. Boson stars may have been formed through gravitational collapse during the primordial stages of the big bang process. According to the earliest theory, a super massive boson star could exist at the core of a galaxy, which might explain many of the observed properties of active galactic cores. Bosonic objects were first studied by considering second quantized scalar field satisfying Klein-Gordon equation [1, 2] in non interacting systems. In this equation the semi-classical Einstein equation had been solved and gravitationally bound state of field was obtained. The maximum mass for boson stars was found to be of the same order as that of neutron star given by M_(max) ≈ 0.633M~2_p/m, where M_P= 1.2 x 10~(19)GeV is the Planck mass and m is the mass of the individual bosons. Phenomenological changes in these system were investigated by [3] while study under weak gravity limit [4].