21 citations · 44 across the 10 of their papers we have counts for
11 papers
Dark Matter and Baryon Asymmetry from Monopole-Axion Interactions
Raymond T. Co, Keisuke Harigaya, Isaac R. Wang +1
We introduce a novel mechanism where the kinetic energy of a rotating axion can be dissipated by the interactions with dark magnetic monopoles. This mechanism leads to a framework…
Radio Killed the Axion Star: Constraining Axion Properties with Radio Telescopes
Patrick J. Fox, Neal Weiner, Huangyu Xiao
Axion dark matter or any ultralight bosonic dark matter can go through Bose-Einstein condensation due to the large phase density, leading to the formation of axion stars or soliton…
Universal lower bound on the axion decay constant from free streaming effects
Keisuke Harigaya, Wayne Hu, Rayne Liu +1
We show that enhancement of the axion relic abundance compared to the standard misalignment contribution generically leads to the production of nonzero momentum axion modes, result…
Probing Fundamental Constant Oscillation in the Galactic Center with S-Star Spectroscopy
Zhaoyu Bai, Vitor Cardoso, Yifan Chen +4
Astrophysical spectroscopy provides a powerful probe of spacetime variations of fundamental constants, as atomic and ionic emission and absorption lines depend sensitively on the f…
Probing Primordial Power Spectrum and Non-Gaussianities With Fast Radio Bursts
Zhiyao Lu, Lian-Tao Wang, Huangyu Xiao
We use the precision measurements of the arrival time differences of the same fast radio burst (FRB) source along multiple sightlines to measure the primordial power spectrum and N…
Interference with Gravitational Instability: Hot and Fuzzy Dark Matter
Rayne Liu, Wayne Hu, Huangyu Xiao
Wave or fuzzy dark matter produced with high momenta behaves in many ways like hot particle dark matter while also possessing seemingly different phenomenology due to wave interfer…
Monopole Catalyzed Baryogenesis with a angle
T. Daniel Brennan, Lian-Tao Wang, Huangyu Xiao
Monopoles are generally expected in Grand Unified Theories (GUTs) where they can catalyze baryon decay at an unsuppressed rate by the Callan-Rubakov effect. For the first time, we…
A New Probe of Hz Gravitational Waves with FRB Timing
Zhiyao Lu, Lian-Tao Wang, Huangyu Xiao
We propose Fast Radio Burst (FRB) timing, which uses the precision measurements of the arrival time differences of repeated FRB signals along multiple sightlines, as a new probe of…
Warm and Fuzzy Dark Matter: Free Streaming of Wave Dark Matter
Rayne Liu, Wayne Hu, Huangyu Xiao
Wave or fuzzy dark matter that is produced with relativistic wavenumbers exhibits free streaming effects analogous to warm or hot particle dark matter with relativistic momenta. Ax…
Axion Stars: Mass Functions and Constraints
Jae Hyeok Chang, Patrick J. Fox, Huangyu Xiao
The QCD axion and axion-like particles, as leading dark matter candidates, can also have interesting implications for dark matter substructures if the Peccei-Quinn symmetry is brok…
Detecting Axion Dark Matter with Black Hole Polarimetry
Xucheng Gan, Lian-Tao Wang, Huangyu Xiao
The axion, as a leading dark matter candidate, is the target of many ongoing and proposed experimental searches based on its coupling to photons. Ultralight axions that couple to p…