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We explore the effect of a supermassive black hole (SMBH) on the density profile of a fuzzy dark matter (FDM) soliton core at the centre of a dark matter halo. We numerically solve the Schr\"odinger-Poisson equations, treating the black…

Astrophysics of Galaxies · Physics 2020-03-11 Elliot Yarnell Davies , Philip Mocz

Ultra-light dark matter (ULDM) refers to a class of theories, including ultra-light axions, in which particles with mass $m_{\psi} < 10^{-20}\, \rm{eV}$ comprise a significant fraction of the dark matter. A galactic scale de Broglie…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-28 Alexander Laroche , Daniel Gilman , Xinyu Li , Jo Bovy , Xiaolong Du

An ultra-light bosonic particle of mass around $10^{-22}\,\mathrm{eV}/c^2$ is of special interest as a dark matter candidate, as it both has particle physics motivations, and may give rise to notable differences in the structures on highly…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-18 Simon May , Volker Springel

Fuzzy Dark Matter (FDM) has recently emerged as an interesting alternative model to the standard Cold Dark Matter (CDM). In this model, dark matter consists of very light bosonic particles with quantum mechanical effects on galactic scales.…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-08 Sana Elgamal , Matteo Nori , Andrea V. Macciò , Marco Baldi , Stefan Waterval

In recent astronomical observations, an almost dark galaxy, designated as Nube, has unveiled an intriguing anomaly in its stellar distribution. Specifically, Nube exhibits an exceptionally low central brightness, with the 2D half-light…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-12 Yu-Ming Yang , Xiao-Jun Bi , Peng-Fei Yin

The fuzzy dark matter model (FDM, also known as quantum wave dark matter model) argues that light bosons with a mass of $\sim10^{-22}{\;{\rm eV}}$ are a possible candidate for dark matter in the Universe. One of the most important…

Astrophysics of Galaxies · Physics 2020-02-12 Zhi Li , Juntai Shen , Hsi-Yu Schive

Whereas cold dark matter (CDM) simulations predict central dark matter cusps with densities that diverge as $\rho$(r)$\sim$ 1/r observations often indicate constant density cores with finite central densities $\rho_0$ and a flat density…

Astrophysics of Galaxies · Physics 2020-12-09 Andreas Burkert

If a significant fraction of the dark matter in the Universe is made of an ultra-light scalar field, named fuzzy dark matter (FDM) with a mass $m_a$ of the order of $10^{-22}-10^{-21}$ eV, then its de Broglie wavelength is large enough to…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-22 Eric Armengaud , Nathalie Palanque-Delabrouille , Christophe Yèche , David J. E. Marsh , Julien Baur

We present a novel method to constrain the mass of ultra-light bosons as the dark matter using stellar streams formed by disrupting Globular Clusters in the Milky Way. The turbulent density field of Fuzzy Dark Matter (FDM) haloes results in…

Astrophysics of Galaxies · Physics 2018-08-03 Nicola C. Amorisco , A. Loeb

We present an in-depth exploration of the phenomenon of dynamical friction in a universe where the dark matter is composed entirely of so-called Fuzzy Dark Matter (FDM), ultralight bosons of mass $m\sim\mathcal{O}(10^{-22})\,$eV. We review…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-15 Lachlan Lancaster , Cara Giovanetti , Philip Mocz , Yonatan Kahn , Mariangela Lisanti , David N. Spergel

Fuzzy Dark Matter (FDM), consisting of ultralight bosons ($m_{\rm b} \sim 10^{-22}\ \rm eV$), is an intriguing alternative to Cold Dark Matter. Numerical simulations that solve the Schr\"odinger-Poisson (SP) equation show that FDM halos…

Fuzzy dark matter (FDM) is a well motivated candidate for dark matter (DM) as its tiny mass and large de-Broglie wavelength suppress small-scale matter fluctuations, thereby solving some of the small-scale discrepancies in $\Lambda$CDM.…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-21 Jordan Flitter , Ely D. Kovetz

Acting as powerful gravitational lenses, the strong lensing galaxy clusters of the deep Hubble Frontier Fields (HFF) program permit access to lower-luminosity galaxies lying at higher redshifts than hitherto possible. We analyzed the HFF to…

Astrophysics of Galaxies · Physics 2018-08-08 Enoch Leung , Tom Broadhurst , Jeremy Lim , Jose M. Diego , Tzihong Chiueh , Hsi-Yu Schive , Rogier Windhorst

Fuzzy (wave) dark matter (FDM), the dynamical model underlying an ultralight bosonic dark matter species, produces a rich set of non-gravitational signatures that distinguishes it markedly from the phenomenologically related warm (particle)…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-22 Tim Zimmermann , David J. E. Marsh , Keir K. Rogers , Hans A. Winther , Sijing Shen

We calculate the abundance of UV-bright galaxies in the presence of ultralight axion (ULA) dark matter (DM), finding that axions suppress their formation with a non-trivial dependence on redshift and luminosity. We set limits on axion DM…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-21 Harrison Winch , Keir K. Rogers , Renée Hložek , David J. E. Marsh

We explore the imprints of fuzzy dark matter (FDM) on the redshifted 21~cm signal from the Cosmic Dawn and the Epoch of Reionization by employing the wavelet scattering transform (WST). FDM, composed of ultralight scalar particles with…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-02 Hayato Shimabukuro , Shihang Liu , Bohua Li

The newly established luminosity functions of high-z galaxies at $4 \lesssim z \lesssim 10$ can provide a stringent check on dark matter models that aim to explain the core properties of dwarf galaxies. The cores of dwarf spheroidal…

Astrophysics of Galaxies · Physics 2016-02-17 Hsi-Yu Schive , Tzihong Chiueh , Tom Broadhurst , Kuan-Wei Huang

Scalar Field Dark Matter (SFDM) comprised of ultralight ($\gtrsim 10^{-22}$ eV) bosons is an alternative to standard, collisionless Cold Dark Matter (CDM) that is CDM-like on large scales but inhibits small-scale structure formation. As a…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-04 Paul R. Shapiro , Taha Dawoodbhoy , Tanja Rindler-Daller

We use state-of-art measurements of the galaxy luminosity function (LF) at z=6, 7 and 8 to derive constraints on warm dark matter (WDM), late-forming dark matter (LFDM) and ultra-light axion dark matter (ULADM) models alternative to the…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-17 P. S. Corasaniti , S. Agarwal , D. J. E. Marsh , S. Das

Abundance matching between galaxies and halos has proven to be an informative technique, less dependent on detailed physical approximations than some other methods. We extend the discussion to the dwarf galaxies realm and to the study of…

Astrophysics of Galaxies · Physics 2018-11-14 Pierre Cristofari , Jeremiah P. Ostriker