# Constraints on axionic fuzzy dark matter from light bending and Shapiro time delay

@article{Poddar2021ConstraintsOA,
title={Constraints on axionic fuzzy
dark matter from light bending
and Shapiro time delay},
author={Tanmay Kumar Poddar},
journal={Journal of Cosmology and Astroparticle Physics},
year={2021}
}
• Tanmay Kumar Poddar
• Published 20 April 2021
• Physics
• Journal of Cosmology and Astroparticle Physics
Ultralight axion like particles (ALPs) of mass ma ∈ (10−21eV − 10−22eV) with axion decay constant fa ∼ 1017GeV can be candidates for fuzzy dark matter (FDM). If celestial bodies like Earth and Sun are immersed in a low mass axionic FDM potential and if the ALPs have coupling with nucleons then the coherent oscillation of the axionic field results a long range axion hair outside of the celestial bodies. The range of the axion mediated Yukawa type fifth force is determined by the distance between…
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