## 127 Citations

### Global view of QCD axion stars

- PhysicsPhysical Review D
- 2019

Taking a comprehensive view, including a full range of boundary conditions, we reexamine QCD axion star solutions based on the relativistic Klein-Gordon equation (using the Ruffini-Bonazzola…

### Rotating axion boson stars

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

We construct and study rotating axion boson stars (RABSs). These are the spinning generalisations of the spherical gravitating solitons recently introduced in [1]. RABSs are asymptotically flat,…

### Axion boson stars

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2019

We study novel solitonic solutions to Einstein-Klein-Gordon theory in the presence of a periodic scalar potential arising in models of axion-like particles. The potential depends on two parameters:…

### Axion configurations around pulsars

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2018

Axion-like particles lead to a plethora of new phenomena relating to compact astrophysical objects including stellar and black hole superradiance, axion stars and axion clusters. In this work, we…

### Diluted axion star collisions with neutron stars

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

Diluted axion star, a self-gravitating object with the quantum pressure balancing gravity, has been predicted in many models with a QCD axion or axion-like particle. It can be formed in the early…

### Parametric-resonance based phenomenology of gravitating axion configurations

- Physics
- 2019

One of the most compelling candidates for Dark Matter (DM) are light pseudo-scalar particles (axions), motivated by the strong CP problem and axiverse scenario in string theory. Depending on their…

### Parametric-resonance based phenomenology of gravitating axion configurations

- Physics
- 2019

One of the most compelling candidates for Dark Matter (DM) are light pseudo-scalar particles (axions), motivated by the strong CP problem and axiverse scenario in string theory. Depending on their…

### Large-misalignment mechanism for the formation of compact axion structures: Signatures from the QCD axion to fuzzy dark matter

- PhysicsPhysical Review D
- 2020

Axions are some of the best motivated particles beyond the Standard Model. We show how the attractive self-interactions of dark matter (DM) axions over a broad range of masses, from $10^{-22}$ eV to…

### Early seeds of axion miniclusters

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2019

We study the small scale structure of axion dark matter in the post-inflationary scenario, which predicts the formation of low-mass, high density clumps of gravitationally bound axions called axion…

### Kerr black holes with synchronized axionic hair

- Physics
- 2020

We construct and analyse Kerr black holes (BHs) with synchronised axionic hair. These are the BH generalisations of the recently constructed rotating axion boson stars arXiv:2005.05982. Such BHs are…

## References

SHOWING 1-10 OF 140 REFERENCES

### Dense Axion Stars.

- PhysicsPhysical review letters
- 2016

A new branch of dense axion stars is found in which gravity is balanced by the mean-field pressure of the axion Bose-Einstein condensate, and this branch could produce a bosenova, leaving a dense axions star as the remnant.

### Collapse of axion stars

- Physics
- 2016

A bstractAxion stars, gravitationally bound states of low-energy axion particles, have a maximum mass allowed by gravitational stability. Weakly bound states obtaining this maximum mass have…

### Nonlinear axion dynamics and the formation of cosmological pseudosolitons.

- PhysicsPhysical review. D, Particles and fields
- 1994

It is found that axion perturbations on scales corresponding to causally disconnected regions at [ital T][similar to]1 GeV can lead to very dense pseudosoliton configurations the authors call axitons, which evolve to axion miniclusters with a present density high enough to lead to Bose-Einstein relaxation in the gravitationally bound clumps of axions, forming Bose stars.

### Rotating drops of axion dark matter

- Physics
- 2016

We consider how QCD axions produced by the misalignment mechanism could form galactic dark matter halos. We recall that stationary, gravitationally stable axion field configurations have the size of…

### Dark matter axions revisited

- Physics
- 2009

We study for what specific values of the theoretical parameters the axion can form the totality of cold dark matter. We examine the allowed axion parameter region in the light of recent data…

### Searching for axions and ALPs from string theory

- Physics
- 2014

We review searches for closed string axions and axion–like particles (ALPs) in IIB string flux compactifications. For natural values of the background fluxes and TeV scale gravitino mass, the moduli…

### Axion dark matter, solitons and the cusp–core problem

- Physics
- 2015

Self-gravitating bosonic fields can support stable and localised field configurations. For real fields, these solutions oscillate in time and are known as oscillatons. The density profile is static,…

### Calculation of the axion mass based on high-temperature lattice quantum chromodynamics

- PhysicsNature
- 2016

This work determines the axion mass using lattice QCD, assuming that these particles are the dominant component of dark matter, and determines the universal axionic angle that corresponds to the initial condition of the authors' Universe.

### Hydrogen axion star: metallic hydrogen bound to a QCD axion BEC

- Physics
- 2016

A bstractAs a cold dark matter candidate, the QCD axion may form Bose-Einstein condensates, called axion stars, with masses around 10−11M⊙. In this paper, we point out that a brand new astrophysical…

### The QCD axion, precisely

- Physics
- 2015

A bstractWe show how several properties of the QCD axion can be extracted at high precision using only first principle QCD computations. By combining NLO results obtained in chiral perturbation…