Interpreting the Extremely Diffuse Stellar Distribution of the Nube Galaxy through Fuzzy Dark Matter
arXiv:2412.01307 · doi:10.3847/2041-8213/adb7da
Abstract
Recent observations have uncovered a remarkably flat and extremely diffuse stellar distribution within the almost dark dwarf galaxy Nube, posing a challenge to the standard cold dark matter scenario. In this study, we employ numerical simulations to explore the possibility that this anomalous stellar distribution can be attributed to the dynamical heating effect of fuzzy dark matter (FDM). The relatively isolated location and low baryon fraction of Nube make it an ideal system for investigating this effect. Our findings indicate that by adopting a halo profile consistent with the dynamical mass estimation of Nube and an FDM particle mass on the order of eV, the final 2D stellar distribution derived from simulation closely matches observational data. These results suggest that FDM could provide an explanation for the extremely diffuse stellar distribution of Nube.
9 pages, 3 figures, 1 table, published in ApJL
References in corpus (34)
- Cold and Fuzzy Dark Matter
- Ultralight scalars as cosmological dark matter
- Axions In String Theory
- Dark Matter Self-interactions and Small Scale Structure
- At the heart of the matter: the origin of bulgeless dwarf galaxies and Dark Matter cores
- Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
- Understanding the Core-Halo Relation of Quantum Wave Dark Matter, DM, from 3D Simulations
- Wave Dark Matter
- Fluid Dark Matter
- Galaxy Formation with BECDM: I. Turbulence and relaxation of idealised haloes
- Strong bound on canonical ultra-light axion dark matter from the Lyman-alpha forest
- Formation and structure of ultralight bosonic dark matter halos
- Strong Constraints on Fuzzy Dark Matter from Ultrafaint Dwarf Galaxy Eridanus II
- Gravitational cooling of self-gravitating Bose-Condensates
- Constraints on Dark Matter Microphysics from the Milky Way Satellite Population
- Relaxation in a Fuzzy Dark Matter Halo
- The IAC Stripe 82 Legacy Project: a wide-area survey for faint surface brightness astronomy
- Unbiased constraints on ultralight axion mass from dwarf spheroidal galaxies
- On the mass of ultra-light bosonic dark matter from galactic dynamics
- Observational Properties of Ultra-Diffuse Galaxies in the Field: Field-UDGs are Predominantly Blue and Starforming
- PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics
- Soliton Random Walk and the Cluster-Stripping Problem in Ultralight Dark Matter
- Oscillations and Random Walk of the Soliton Core in a Fuzzy Dark Matter Halo
- Construction of Wave Dark Matter Halos: Numerical Algorithm and Analytical Constraints
- On the Random Motion of Nuclear Objects in a Fuzzy Dark Matter Halo
- Soliton Oscillations and Revised Constraints from Eridanus II of Fuzzy Dark Matter
- Are ultra-diffuse galaxies Milky Way-sized?
- Coherent and incoherent structures in fuzzy dark matter halos
- An almost dark galaxy with the mass of the Small Magellanic Cloud
- Confronting fuzzy dark matter with the rotation curves of nearby dwarf irregular galaxies
- On the Dynamical Heating of Dwarf Galaxies in a Fuzzy Dark Matter Halo
- Exploring the nature of dark matter with the extreme galaxy AGC 114905
- Can ultralight dark matter explain the age-velocity dispersion relation of the Milky Way disc: A revised and improved treatment
- Galactic Rotation Curves of LSB Galaxies using core-halo FDM configurations