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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.…

宇宙学与河外天体物理 · 物理学 2023-11-08 Sana Elgamal , Matteo Nori , Andrea V. Macciò , Marco Baldi , Stefan Waterval

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…

星系天体物理 · 物理学 2024-11-18 Matteo Nori , Shubhan Bhatia , Andrea V. Macciò

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…

宇宙学与河外天体物理 · 物理学 2024-06-18 Simon May , Volker Springel

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.…

宇宙学与河外天体物理 · 物理学 2023-07-19 Simon May , Volker Springel

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…

宇宙学与河外天体物理 · 物理学 2023-12-11 Alex Laguë , Bodo Schwabe , Renée Hložek , David J. E. Marsh , Keir K. Rogers

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…

宇宙学与河外天体物理 · 物理学 2023-01-20 Tibor Dome , Anastasia Fialkov , Philip Mocz , Björn Malte Schäfer , Michael Boylan-Kolchin , Mark Vogelsberger

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…

宇宙学与河外天体物理 · 物理学 2022-05-11 Bodo Schwabe , Jens C. Niemeyer

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…

宇宙学与河外天体物理 · 物理学 2018-07-06 M. Nori , M. Baldi

Fuzzy Dark Matter (FDM), particularly in the $10^{-22}$ eV mass regime is frequently used to characterize wave-like interference effects. It exhibits macroscopic wave properties, which drive distinct baryonic dynamics within collapsed…

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…

宇宙学与河外天体物理 · 物理学 2017-08-22 Eric Armengaud , Nathalie Palanque-Delabrouille , Christophe Yèche , David J. E. Marsh , Julien Baur

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…

宇宙学与河外天体物理 · 物理学 2020-12-23 Matteo Nori , Marco Baldi

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…

宇宙学与河外天体物理 · 物理学 2022-08-29 Mona Dentler , David J. E. Marsh , Renée Hložek , Alex Laguë , Keir K. Rogers , Daniel Grin

We investigate Lyman-alpha forest flux statistics in mixed fuzzy dark matter (FDM) and cold dark matter (CDM) cosmologies using the Fluctuating Gunn-Peterson Approximation (FGPA) applied to hybrid Schr\"odinger-Poisson and N-body…

宇宙学与河外天体物理 · 物理学 2026-04-08 Yourong Frank Wang

The 21-cm signals from Cosmic Dawn and the Epoch of Reionization contain valuable information on cosmological structure formation dominated by dark matter. Measurements of the 21-cm power spectrum can thus probe certain dark matter…

宇宙学与河外天体物理 · 物理学 2025-08-15 Shihang Liu , Yilin Liu , Bowen Peng , Mengzhou Xie , Zelong Liu , Bohua Li , Yi Mao

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…

宇宙学与河外天体物理 · 物理学 2026-03-03 Bahareh Soleimanpour Salmasi , S. Mobina Hosseini

Fuzzy dark matter (FDM) is a compelling candidate for dark matter, offering a natural explanation for the structure of diffuse low-mass haloes. However, the canonical FDM model with a mass of $10^{-22}~{\rm eV}$ encounters challenges in…

Fuzzy dark matter (FDM) is a promising candidate for dark matter, characterized by its ultra-light mass, which gives rise to wave effects at astrophysical scales. These effects offer potential solutions to the small-scale issues encountered…

宇宙学与河外天体物理 · 物理学 2024-07-30 Hamed Manouchehri Kousha , Mohammad Ansarifard , Aliakbar Abolhasani

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…

宇宙学与河外天体物理 · 物理学 2026-04-07 Hsi-Yu Schive

We review the current state of the theory of large scale structure in a warm dark matter (WDM) cosmological model. In particular, we focus on the non-linear modelling of the matter power spectrum and on the mass function of dark matter…

宇宙学与河外天体物理 · 物理学 2014-02-18 Katarina Markovič , Matteo Viel

On large cosmological scales, anisotropic gravitational collapse is manifest in the dark cosmic web. Its statistical properties are little known for alternative dark matter models such as fuzzy dark matter (FDM). In this work, we assess for…

宇宙学与河外天体物理 · 物理学 2023-08-17 Tibor Dome , Anastasia Fialkov , Nina Sartorio , Philip Mocz
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