Cosmologically probing ultra-light particle dark matter using 21 cm signals
arXiv:1312.1898 · doi:10.1088/1475-7516/2014/06/011
Abstract
There can arise ubiquitous ultra-light scalar fields in the Universe, such as the pseudo-Goldstone bosons from the spontaneous breaking of an approximate symmetry, which can make a partial contribution to the dark matter and affect the large scale structure of the Universe. While the properties of those ultra-light dark matter are heavily model dependent and can vary in a wide range, we develop a model-independent analysis to forecast the constraints on their mass and abundance using futuristic but realistic 21 cm observables as well as CMB fluctuations, including CMB lensing measurements. Avoiding the highly nonlinear regime, the 21 cm emission line spectra are most sensitive to the ultra-light dark matter with mass m ~10^{-26} eV for which the precision attainable on mass and abundance bounds can be of order of a few percent.
14 pages, 6 figures, More discussion on free streaming and references are added. Typos corrected
References in corpus (14)
- Cosmology at Low Frequencies: The 21 cm Transition and the High-Redshift Universe
- Bose-Einstein Condensation of Dark Matter Axions
- Nonlinear Evolution of Baryon Acoustic Oscillations
- How accurately can 21 cm tomography constrain cosmology?
- Evidence for massive neutrinos from CMB and lensing observations
- An M Theory Solution to the Strong CP Problem and Constraints on the Axiverse
- Ultra-Light Scalar Fields and the Growth of Structure in the Universe
- Evidence for dark energy from the cosmic microwave background alone using the Atacama Cosmology Telescope lensing measurements
- The Fast Fourier Transform Telescope
- Impact of massive neutrinos on nonlinear matter power spectrum
- Constraints on primordial magnetic fields from CMB distortions in the axiverse
- Observational constraints on cosmic neutrinos and dark energy revisited
- Will Nonlinear Peculiar Velocity and Inhomogeneous Reionization Spoil 21cm Cosmology from the Epoch of Reionization?
- Ultralight Particle Dark Matter
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- Short Review of the main achievements of the Scalar Field, Fuzzy, Ultralight, Wave, BEC Dark Matter model
- Constraints on nature of ultra light dark matter particles with 21cm forest
- CMB probes on the correlated axion isocurvature perturbation
- 21cm forest probes on the axion dark matter in the post-inflationary Peccei-Quinn symmetry breaking scenarios
- Probing axion dark matter with 21cm fluctuations from minihalos
- Axion Like Particles and the Inverse Seesaw Mechanism
- Probing Ultra-light Axion Dark Matter from 21cm Tomography using Convolutional Neural Networks