A stability analysis of the static Einstein‐Klein‐Gordon Boson Stars
Sign Up to like & getrecommendations! Published in 2021 at "Astronomische Nachrichten"
DOI: 10.1002/asna.202113911
Abstract: The stability of the recently proposed static solutions for boson stars is analyzed. These solutions of Einstein‐Klein‐Gordon (EKG) equations are obtained by considering the interaction of a real scalar field with matter. We assume that… read more here.
Keywords: einstein klein; stability; klein gordon; matter ... See more keywords
Large-charge limit of AdS boson stars with mixed boundary conditions
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2021)220
Abstract: It was recently shown that charged AdS boson stars can reproduce the universal structure of the lowest scaling dimension in the subsector of a CFT with fixed large global $U(1)$ charge $Q$. Using the model… read more here.
Keywords: large charge; boundary conditions; mixed boundary; ads boson ... See more keywords
Gravitational waves from dark boson star binary mergers
Sign Up to like & getrecommendations! Published in 2018 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aae87c
Abstract: Gravitational wave astronomy might allow us to detect the coalescence of low-brightness astrophysical compact objects which are extremely difficult to be observed with current electromagnetic telescopes. Besides classical sources like black holes and neutron stars,… read more here.
Keywords: gravitational waves; dark boson; waves dark; boson stars ... See more keywords
Boson stars in Palatini f(R) gravity
Sign Up to like & getrecommendations! Published in 2021 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac1fd0
Abstract: We explore equilibrium solutions of spherically symmetric boson stars in the Palatini formulation of f(R) gravity. We account for the modifications introduced in the gravitational sector by using a recently established correspondence between modified gravity… read more here.
Keywords: palatini gravity; boson stars; general relativity; gravity ... See more keywords
Extreme $\ell$-boson stars
Sign Up to like & getrecommendations! Published in 2022 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac5fc2
Abstract: A new class of complex scalar field objects, which generalize the well known boson stars, was recently found as solutions to the Einstein-Klein-Gordon system. The generalization consists in incorporating some of the effects of angular… read more here.
Keywords: parameter; boson stars; extreme ell; ell boson ... See more keywords
Probing dynamics of boson stars by fast radio bursts and gravitational wave detection
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/10/043
Abstract: Boson stars may consist of a new type of light singlet scalar particles with nontrivial self-interactions, and may compose a fraction of the dark matter in the Universe. In this work, we study the dynamics… read more here.
Keywords: gravitational wave; boson stars; wave detection; fast radio ... See more keywords
Stability of rotating scalar boson stars with nonlinear interactions
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.103.044022
Abstract: We study the stability of rotating scalar boson stars, comparing those made from a simple massive complex scalar (referred to as mini boson stars), to those with several different types of nonlinear interactions. To that… read more here.
Keywords: nonlinear interactions; stability; boson; boson star ... See more keywords
Fermion–charged-boson stars
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.043001
Abstract: Fermion-boson stars are starlike systems composed of the ordinary nuclear matter of a neutron star and bosonic dark matter. The bosonic dark matter has typically been taken to be a complex scalar field. A natural… read more here.
Keywords: fermion charged; boson; scalar field; boson stars ... See more keywords
New insights into the formation and growth of boson stars in dark matter halos
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.083022
Abstract: This work studies the formation and growth of boson stars and their surrounding miniclusters by gravitational condensation using non-linear dynamical numerical methods. Fully dynamical attractive and repulsive self-interactions are also considered for the first time.… read more here.
Keywords: formation growth; growth boson; self interactions; boson ... See more keywords
Magnetized thick disks around boson stars
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review D"
DOI: 10.1103/physrevd.107.103043
Abstract: The effects of magnetic fields on accretion disks around compact objects are of high importance in the study of their general properties and dynamics. Here we analyze the influence of magnetic fields on thick accretion… read more here.
Keywords: thick disks; disks around; magnetized thick; boson stars ... See more keywords
Light rings and light points of boson stars
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.084011
Abstract: This work is devoted to the study of photon trajectories around rotating boson stars. The basic properties of boson star models are given with a particular emphasis on the high compactness those objects can have.… read more here.
Keywords: light rings; boson stars; light points; points boson ... See more keywords