Can I read Two Boson Stars in Equilibrium on EtoBox?

Two Boson Stars in Equilibrium by Cunha, P.; Herdeiro, C.; Radu, E.; Shnir, Ya. is a scholarly article available to read on EtoBox.

What is Two Boson Stars in Equilibrium about?

We construct and explore the solution space of two non-spinning, mini-boson stars in equilibrium, in fully non-linear General Relativity (GR), minimally coupled to a free, massive, complex scalar field. The equilibrium is due to the balance between the (long range) gravitational attraction and the (short-range) scalar mediated repulsion, the latter enabled by a $\pi$ relative phase. Gravity is \textit{mandatory}; it is shown no similar solutions exist in flat spacetime, replacing gravity by non-linear scalar interactions. We study the variation of the proper distance between the stars with their mass (or oscillation frequency), showing it can be qualitatively captured by a simple analytic model that features the two competing interactions. Finally, we discuss some physical properties of the solutions, including their gravitational lensing.

Author

Cunha, P.; Herdeiro, C.; Radu, E.; Shnir, Ya.

Published

2022

Language

EN