New Solutions for Rotating Boson Stars

Understand

It has been shown that scalar fields can form gravitationally bound compact objects called boson stars.

• In this study, we analyze boson star configurations where the scalar fields contain a small amount of angular momentum and find two new classes of solutions.
• In the first case all particles are in the same slowly rotating state and in the second case the majority of particles are in the non-rotating ground state and a small number of particles are in an excited rotating state.
• In both cases, we solve the underlying Gross-Pitaevskii-Poisson equations that describe the profile of these compact objects both numerically as well as analytically through series expansions.