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Related papers: No Catch-22 for Fuzzy Dark Matter: testing substru…

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The era of precision cosmology allows us to test the composition of the dark matter. Mixed ultralight or fuzzy dark matter (FDM) is a cosmological model with dark matter composed of a combination of particles of mass $m\leq…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-11 Alex Laguë , Bodo Schwabe , Renée Hložek , David J. E. Marsh , Keir K. Rogers

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) represents an alternative and intriguing description of the standard Cold Dark Matter (CDM) fluid, able to explain the lack of direct detection of dark matter particles in the GeV sector and to alleviate small scales…

Cosmology and Nongalactic Astrophysics · Physics 2018-11-30 Matteo Nori , Riccardo Murgia , Vid Iršič , Marco Baldi , Matteo Viel

Fuzzy dark matter (FDM) is a dark matter candidate consisting of ultra-light scalar particles with masses around $10^{-22} \mathrm{eV}/c^2$, a regime where cold bosonic matter behaves as a collective wave rather than individual particles.…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-19 Simon May , Volker Springel

Fuzzy dark matter (FDM) made of ultra-light bosonic particles is a viable alternative to cold dark matter (CDM) with clearly distinguishable small-scale features in collapsed structures. On large scales, it behaves gravitationally like CDM…

Cosmology and Nongalactic Astrophysics · Physics 2022-05-11 Bodo Schwabe , Jens C. Niemeyer

Gravitational weak lensing by dark matter halos leads to a measurable imprint in the shear correlation function of galaxies. Fuzzy dark matter (FDM), composed of ultralight axion-like particles of mass $m\sim 10^{-22}\text{ eV}$, suppresses…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-29 Mona Dentler , David J. E. Marsh , Renée Hložek , Alex Laguë , Keir K. Rogers , Daniel Grin

Fuzzy dark matter (FDM), a scalar particle coupled to the gravitational field without self-interaction whose mass range is $m \sim 10^{-24} - 10^{-20}\ \rm{eV}$, is one of the promising alternative dark matter candidates to cold dark…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-02 Hiroki Kawai , Masamune Oguri , Alfred Amruth , Tom Broadhurst , Jeremy Lim

We present a new module of the parallel N-Body code P-GADGET3 for cosmological simulations of light bosonic non-thermal dark matter, often referred as Fuzzy Dark Matter (FDM). The dynamics of the FDM features a highly non-linear Quantum…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-06 M. Nori , M. Baldi

We present the first set of high-resolution, hydrodynamical cosmological simulations of galaxy formation in a Fuzzy Dark Matter (FDM) framework. These simulations were performed with a new version of the GASOLINE2 code, known as…

Astrophysics of Galaxies · Physics 2024-11-18 Matteo Nori , Shubhan Bhatia , Andrea V. Macciò

Fuzzy Dark Matter (FDM) has recently gained attention as a motivated candidate for the dark matter (DM) content of the Universe, as opposed to the commonly assumed cold DM (CDM), since the soliton profile intrinsic to FDM models was found…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-01 Tatyana Shevchuk , Ely D. Kovetz , Adi Zitrin

Dark matter models involving a very light bosonic particle, generally known as Fuzzy Dark Matter (FDM), have been recently attracting great interest in the cosmology community, as their wave-like phenomenology would simultaneously explain…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-23 Matteo Nori , Marco Baldi

The nature of dark matter remains a central question in cosmology, with fuzzy dark matter (FDM) models offering a compelling alternative to the cold dark matter (CDM) paradigm. We explore FDM scenarios by performing 21-cm simulations across…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-03 Bahareh Soleimanpour Salmasi , S. Mobina Hosseini

The fuzzy dark matter (FDM) scenario has received increased attention in recent years due to the small-scale challenges of the vanilla Lambda cold dark matter ($\Lambda$CDM) cosmological model and the lack of any experimental evidence for…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-20 Tibor Dome , Anastasia Fialkov , Philip Mocz , Björn Malte Schäfer , Michael Boylan-Kolchin , Mark Vogelsberger

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

Fuzzy Dark Matter (FDM) is one of the recent models for dark matter. According to this model, dark matter is made of very light scalar particles with considerable quantum mechanical effects on the galactic scale, which solves many problems…

Astrophysics of Galaxies · Physics 2020-05-13 Alireza Maleki , Shant Baghram , Sohrab Rahvar

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

Fuzzy dark matter (FDM), composed of ultralight bosons, exhibits intricate wave phenomena on galactic scales. Compared to cold dark matter, FDM simulations are significantly more computationally demanding due to the need to resolve the de…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-07 Hsi-Yu Schive

Fuzzy Dark Matter (FDM), motivated by string theory, has recently become a hot candidate for dark matter. The rest mass of FDM is believed to be $\sim 10^{-22}$eV and the corresponding de-Broglie wave length is $\sim 1$kpc. Therefore, the…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-08 Jiajun Zhang , Hantao Liu , Ming-Chung Chu

Ultra-light scalar fields and their non-interacting class, the so-called fuzzy dark matter (FDM), are candidates for dark matter, introduced to solve the small-scale problems of the standard cold dark matter. In this paper, we address…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-24 Hamed Manouchehri Kousha , Sina Hooshangi , Aliakbar Abolhasani

The JWST early release data show unexpected high stellar mass densities of massive galaxies at $7<z<11$, a high star formation efficiency is probably needed to explain this. However, such a high star formation efficiency would greatly…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-26 Yan Gong , Bin Yue , Ye Cao , Xuelei Chen
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