Results 101 to 110 of about 612 (190)
Analysis of Galaxies at the Extremes: Failed Galaxy Progenitors in the MAGNETICUM Simulations
The Open Journal of AstrophysicsThere is increasing observational evidence for a “failed galaxy” formation pathway for ultra-diffuse galaxies (UDGs) at low redshift however they currently lack simulated counterparts.
Jonah S. Gannon +7 more
doaj +1 more source
Globular Cluster Distributions as a Dynamical Probe of Dark Matter
The Astrophysical JournalGlobular clusters (GCs) act as massive probe particles traversing the dark matter halos of their host galaxies. Gravitational dynamical friction due to halo particles causes GC orbits to contract over time, providing a beyond-mean field test of the cold ...
Nativ Ben-Yeda, Kfir Blum, Inbar Havilio
doaj +1 more source
Tidal Suppression of Fuzzy Dark Matter Heating in Milky Way Satellite Galaxies
The Astrophysical Journal LettersMany previous studies have imposed stringent constraints on the particle mass of fuzzy dark matter (FDM) by analyzing observations of Galactic satellite galaxies, which show no significant evidence of the heating effect predicted by FDM.
Yu-Ming Yang +3 more
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Leaving No Branches Behind: Predicting Baryonic Properties of Galaxies from Merger Trees
The Astrophysical JournalGalaxies play a key role in our endeavor to understand how structure formation proceeds in the Universe. For any precision study of cosmology or galaxy formation, there is a strong demand for huge sets of realistic mock galaxy catalogs, spanning ...
Chen-Yu Chuang +4 more
doaj +1 more source
Accelerating Massive Galaxy Formation with Primordial Black Hole Seed Nuclei
The Astronomical JournalIf massive primordial black holes (PBHs) exist and constitute a fraction of the dark matter, they can dramatically catalyze galaxy formation. By acting as pre-existing, high-density seeds, they can shorten the galaxy assembly time to as little as 100 Myr
Jeremy Mould
doaj +1 more source
Quantifying microbiota impact on plant traits for the guidance of breeding programs
New Phytologist, Volume 250, Issue 6, Page 3524-3533, June 2026.
Manuel Blouin +5 more
wiley +1 more source
The Astrophysical JournalWe describe a new Python-based stand-alone halo finding algorithm, Haskap Pie , that combines several methods of halo finding and tracking into a single calculation. Our halo-finder flexibly solves halos for simulations produced by eight simulation codes
Kirk S. S. Barrow +2 more
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Hydro-Gravitational Dynamics of Planets and Dark Energy
Journal of Applied Fluid Mechanics, 2009 Self gravitational fluid mechanical methods termed hydro-gravitational-dynamics (HGD) predict plasma fragmentation 0.03 Myr after the turbulent big bang to form protosuperclustervoids, turbulent protosuperclusters, and protogalaxies at the 0.3 Myr ...
Carl H. Gibson, R.E, Schild
doaj
Chameleon gravity as an alternative to dark matter
European Physical Journal C: Particles and FieldsBy studying the chameleon gravity on galaxy scales, we investigate the effects of the chameleon dark matter. To perform this task, we consider the dynamics of the chameleon scalar field in the region of galactic halos in static spherically symmetric ...
Raziyeh Zaregonbadi +2 more
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Astronomy & AstrophysicsWarm and self-interactive dark matter cosmologies have been proposed as nonbaryonic solutions to the tensions between the Λ cold dark matter model and observations at the kiloparsec scale.
Romanello M. +5 more
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