ℓ-boson stars
By M. Alcubierre, J. Barranco, A. Bernal, J. C. Degollado, A. Diez-Tejedor, M. Megevand, D. Núñez, O. Sarbach. Classical and quantum gravity, 2018
177 citations recorded by the source corpus.
We present new, fully nonlinear numerical solutions to the static, spherically symmetric Einstein–Klein–Gordon system for a collection of an arbitrary odd number N of complex scalar fields with an internal symmetry and no self-interactions. These solutions, which we dub -boson stars, are parametrized by an angular momentum number , an excitation number n, and a continuous parameter representing the amplitude of the fields. They are regular at every point and possess a finite total mass. For the standard spherically symmetric boson stars are recovered. We determine their generalizations for , and show that they give rise to a large class of new static configurations which might have a much larger compactness ratio than stars.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/03e040702ffd9ed259c5eb05232bc228bcbf97b0
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In Astronomy and Astrophysics
- Diego Rubiera-García
- Aneta Wojnar
- Eran Palti
- Farvah Mahmoudi
- A. Arbey
- G. Olmo
- Valerio Faraoni
- Tiberiu Harko
In Nuclear and High Energy Physics
- Diego Rubiera-García
- Aneta Wojnar
- A. Arbey
- Eran Palti
- Farvah Mahmoudi
- G. Olmo
- Valerio Faraoni
- Tiberiu Harko
Citations in the corpus
- The Swampland: Introduction and Review (2019, background): “These were based on the result that the binding energy for N non-relativistic charged particles interacting under gravitational and electromagnetic Coulomb forces behaves as N3 ( m2 − 2g2q2 )5 [63].”
- Dark matter and the early Universe: A review (2021, background): “The particles have therefore wave functions spread over a large distance, and they can condense into Bose-Einstein condensates [82, 83], whose size and mass are determined by the scalar field density and mass.”
- Stellar structure models in modified theories of gravity: Lessons and challenges (2019, background): “Moreover, along the decades other stellar objects have appeared in the literature, such as hyperon stars [11], quark/hybrid stars [12, 13], strange stars [14], and even more exotic objects such as boson stars [15].”