Characterizing the continuous gravitational-wave signal from boson clouds around Galactic isolated black holes

@article{Zhu2020CharacterizingTC,
  title={Characterizing the continuous gravitational-wave signal from boson clouds around Galactic isolated black holes},
  author={Sylvia Jiechen Zhu and Masha Baryakhtar and Maria Alessandra Papa and Daichi Tsuna and Norita Kawanaka and Heinz-Bernd Eggenstein},
  journal={Physical Review D},
  year={2020},
  volume={102}
}
Ultralight bosons can form large clouds around stellar-mass black holes via the superradiance instability. Through processes such as annihilation, these bosons can source continuous gravitational wave signals with frequencies within the range of LIGO and Virgo. If boson annihilation occurs, then the Galactic black hole population will give rise to many gravitational signals; we refer to this as the ensemble signal. We characterize the ensemble signal as observed by the gravitational-wave… 
Quenching mechanisms of photon superradiance
Rapidly rotating black holes are known to develop instabilities in the presence of a sufficiently light boson, a process which becomes efficient when the boson's Compton wavelength is roughly the
Detection of Gravitational Waves using Parametric Resonance in Bose-Einstein Condensates
An interesting proposal for detecting gravitational waves involves quantum metrology of Bose-Einstein condensates (BECs). We consider a forced modulation of the speed of sound of a BEC, whose
Results from high-frequency all-sky search for continuous gravitational waves from small-ellipticity sources
We present the results of an all-sky search for continuous gravitational wave signals with frequencies in the 1700-2000 Hz range from neutron stars with ellipticity of 1e-8. The search employs the
Search for continuous gravitational waves from small-ellipticity sources at low frequencies
We present the results of an all-sky search for continuous gravitational wave signals with frequencies in the 20-500 Hz range from neutron stars with ellipticity of ≈ 10−8. This frequency region is
Adapting a semi-coherent method to directly detect dark photon dark matter interacting with gravitational-wave interferometers
We adapt a method, originally developed for continuous gravitational-wave searches, to directly detect dark photon dark matter. The method involves optimally choosing the analysis coherence time as a
Imprints of axion superradiance in the CMB
Light axions ($m_a \lesssim 10^{-10}$ eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and
Einstein@Home All-sky Search for Continuous Gravitational Waves in LIGO O2 Public Data
We conduct an all-sky search for continuous gravitational waves in the LIGO O2 data from the Hanford and Livingston detectors. We search for nearly monochromatic signals with frequency 20.0 Hz ≤ f ≤
Challenges and opportunities of gravitational-wave searches at MHz to GHz frequencies
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges and gains expected
Results from the First All-Sky Search for Continuous Gravitational Waves from Small-Ellipticity Sources.
TLDR
The search for continuous gravitational-wave signals with frequencies in the 500-1700 Hz range targeting neutron stars with ellipticity of 10^{-8} is presented, with double the sensitivity over any other result on the same data.
Recent Progress in the Physics of Axions and Axion-Like Particles
The axion is a light pseudoscalar particle postulated to solve issues with the Standard Model, including the strong CP problem and the origin of dark matter. In recent years, there has been
...
...

References

SHOWING 1-10 OF 182 REFERENCES
Gravitational wave signatures of ultralight vector bosons from black hole superradiance
In the presence of an ultralight bosonic field, spinning black holes are unstable to superradiance. The rotational energy of the black hole is converted into a nonaxisymmetric, oscillating boson
Black Hole Superradiant Instability from Ultralight Spin-2 Fields.
TLDR
This work takes an important step forward in the black hole superradiance program by computing, analytically, the instability timescale, direct GW emission, and stochastic background, in the case of massive tensor (i.e., spin-2) fields.
Probing ultralight bosons with binary black holes
We study the gravitational-wave (GW) signatures of clouds of ultralight bosons around black holes (BHs) in binary inspirals. These clouds, which are formed via superradiance instabilities for rapidly
Black holes as particle detectors: evolution of superradiant instabilities
Superradiant instabilities of spinning black holes can be used to impose strong constraints on ultralight bosons, thus turning black holes into effective particle detectors. However, very little is
Discovering the QCD Axion with Black Holes and Gravitational Waves
Advanced LIGO may be the first experiment to detect gravitational waves. Through superradiance of stellar black holes, it may also be the first experiment to discover the QCD axion with decay
Stochastic and Resolvable Gravitational Waves from Ultralight Bosons.
TLDR
Numerical solutions of the perturbed field equations and astrophysical models of massive and stellar-mass black hole populations are used to compute, for the first time, the stochastic gravitational-wave background from these sources.
Direct Constraints on the Ultralight Boson Mass from Searches of Continuous Gravitational Waves.
TLDR
This Letter presents full band upper limits for a generic all-sky search for periodic gravitational waves in LIGO O2 data, and uses them to derive-for the first time-direct constraints on the ultralight scalar boson field mass.
Directed searches for gravitational waves from ultralight bosons
Gravitational-wave detectors can be used to search for yet-undiscovered ultralight bosons, including those conjectured to solve problems in particle physics, high-energy theory, and cosmology. In
The first gravitational-wave source from the isolated evolution of two stars in the 40–100 solar mass range
TLDR
High-precision numerical simulations of the formation of binary black holes via the evolution of isolated binary stars are reported, providing a framework within which to interpret the first gravitational-wave source, GW150914, and to predict the properties of subsequent binary-black-hole gravitational- wave events.
Constraining the mass of dark photons and axion-like particles through black-hole superradiance
Ultralight bosons and axion-like particles appear naturally in different scenarios and could solve some long-standing puzzles. Their detection is challenging, and all direct methods hinge on unknown
...
...