scholarly journals Evolution of linear wave dark matter perturbations in the radiation-dominated era

2017 ◽  
Vol 96 (2) ◽  
Author(s):  
Ui-Han Zhang ◽  
Tzihong Chiueh
Keyword(s):  
Dark Matter ◽  
Linear Wave ◽  
Wave Dark Matter

scholarly journals Jeans analysis for dwarf spheroidal galaxies in wave dark matter

2017 ◽  
Vol 468 (2) ◽  
pp. 1338-1348 ◽  
Author(s):  
Shu-Rong Chen ◽  
Hsi-Yu Schive ◽  
Tzihong Chiueh
Keyword(s):  
Dark Matter ◽  
Dwarf Spheroidal Galaxies ◽  
Wave Dark Matter ◽  
Spheroidal Galaxies

scholarly journals On wave dark matter in spiral and barred galaxies

2015 ◽  
Vol 2015 (12) ◽  
pp. 025-025 ◽  
Author(s):  
Luis A. Martinez-Medina ◽  
Hubert L. Bray ◽  
Tonatiuh Matos
Keyword(s):  
Dark Matter ◽  
Barred Galaxies ◽  
Wave Dark Matter

scholarly journals Black Hole Window intop-Wave Dark Matter Annihilation

2015 ◽  
Vol 115 (23) ◽  
Author(s):  
Jessie Shelton ◽  
Stuart L. Shapiro ◽  
Brian D. Fields
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Dark Matter Annihilation ◽  
Wave Dark Matter

scholarly journals Wave Dark Matter

2021 ◽  
Vol 59 (1) ◽  
pp. 247-289
Author(s):  
Lam Hui
Keyword(s):  
Dark Matter ◽  
Gravitational Lensing ◽  
Particle Physics ◽  
Density Fluctuations ◽  
Dark Matter Candidate ◽  
Order Unity ◽  
Wave Interference ◽  
Wave Nature ◽  
Tidal Streams ◽  
Wave Dark Matter

We review the physics and phenomenology of wave dark matter: a bosonic dark matter candidate lighter than about 30 eV. Such particles have a de Broglie wavelength exceeding the average interparticle separation in a galaxy like the Milky Way and are, thus, well described as a set of classical waves. We outline the particle physics motivations for such particles, including the quantum chromodynamics axion as well as ultralight axion-like particles such as fuzzy dark matter. The wave nature of the dark matter implies a rich phenomenology: ▪  Wave interference gives rise to order unity density fluctuations on de Broglie scale in halos. One manifestation is vortices where the density vanishes and around which the velocity circulates. There is one vortex ring per de Broglie volume on average. ▪  For sufficiently low masses, soliton condensation occurs at centers of halos. The soliton oscillates and undergoes random walks, which is another manifestation of wave interference. The halo and subhalo abundance is expected to be suppressed at small masses, but the precise prediction from numerical wave simulations remains to be determined. ▪  For ultralight ∼10−22 eV dark matter, the wave interference substructures can be probed by tidal streams or gravitational lensing. The signal can be distinguished from that due to subhalos by the dependence on stream orbital radius or image separation. ▪  Axion detection experiments are sensitive to interference substructures for wave dark matter that is moderately light. The stochastic nature of the waves affects the interpretation of experimental constraints and motivates the measurement of correlation functions. Current constraints and open questions, covering detection experiments and cosmological, galactic, and black hole observations, are discussed.

scholarly journals Understanding the Core-Halo Relation of Quantum Wave Dark Matter from 3D Simulations

2014 ◽  
Vol 113 (26) ◽  
Author(s):  
Hsi-Yu Schive ◽  
Ming-Hsuan Liao ◽  
Tak-Pong Woo ◽  
Shing-Kwong Wong ◽  
Tzihong Chiueh ◽  
...  
Keyword(s):  
Dark Matter ◽  
3D Simulations ◽  
The Core ◽  
Quantum Wave ◽  
Wave Dark Matter

scholarly journals Self-consistent construction of virialized wave dark matter halos

2018 ◽  
Vol 97 (10) ◽  
Author(s):  
Shan-Chang Lin ◽  
Hsi-Yu Schive ◽  
Shing-Kwong Wong ◽  
Tzihong Chiueh
Keyword(s):  
Dark Matter ◽  
Dark Matter Halos ◽  
Self Consistent ◽  
Wave Dark Matter

scholarly journals Multiple ultralight axionic wave dark matter and astronomical structures

2020 ◽  
Vol 30 ◽  
pp. 100636 ◽  
Author(s):  
Hoang Nhan Luu ◽  
S.-H. Henry Tye ◽  
Tom Broadhurst
Keyword(s):  
Dark Matter ◽  
Wave Dark Matter

Einstein’s General Theory of Relativity and the Development of Modified Theories of Gravitation

2020 ◽  
Vol 29 (11) ◽  
pp. 2-9
Author(s):  
Bogeun GWAK, ◽  
Bum-Hoon LEE ◽  
Wonwoo LEE
Keyword(s):  
General Relativity ◽  
Dark Matter ◽  
Dark Energy ◽  
General Theory ◽  
Quantum Gravity ◽  
Theory Of Relativity ◽  
General Theory Of Relativity ◽  
Theory Of Gravitation ◽  
Wave Dark Matter ◽  
Theories Of Gravitation

We briefly review both Einstein’s general theory of relativity and the development of modified theories of gravitation with theoretical and observational motivations. For this, we discuss the theoretical properties and weaknesses of general relativity. We also mention attempts that have been made to develop the theory of quantum gravity. The recent detections of a gravitational wave, dark matter, and dark energy have opened new windows into astrophysics, as well as cosmology, through which tests to determine the theory of gravitation that best describes our Universe would be interesting. Most of all, note that we cannot clearly describe our Universe, including dark matter and dark energy, with standard particle models and the general theory of relativity. In these respects, we must be open-minded and study all possible aspects.

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