Redshift evolution of the dark matter haloes shapes
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DOI: 10.1093/mnras/stad1601
Abstract: In this work, we aim at investigating the morphology evolution of Milky Way mass-like dark matter haloes selected from the cielo and IllustrisTNG Projects. The connection between halo shapes and their environment has been studied… read more here.
Keywords: redshift evolution; dark matter; evolution dark; matter haloes ... See more keywords
Environmental screening of dark matter haloes in f(R) gravity
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DOI: 10.1093/mnras/stx865
Abstract: In certain theories of modified gravity, solar system constraints on deviations from general relativity (GR) are satisfied by virtue of a so-called screening mechanism, which enables the theory to revert to GR in regions where… read more here.
Keywords: environmental screening; matter; dark matter; matter haloes ... See more keywords
A constant characteristic volume density of dark matter haloes from SPARC rotation curve fits
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DOI: 10.1093/mnras/sty2968
Abstract: We study the scaling relations between dark matter (DM) haloes and galaxy discs using 175 galaxies from the SPARC database. We explore two cosmologically motivated DM halo profiles: the Einasto profile from DM-only simulations and… read more here.
Keywords: dark matter; volume density; density; matter haloes ... See more keywords
Shape of dark matter haloes in the Illustris simulation: effects of baryons
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DOI: 10.1093/mnras/sty3531
Abstract: We study the effect of baryonic processes on the shapes of dark matter (DM) haloes from Illustris, a suite of hydrodynamical (Illustris) and DM-only (Illustris-Dark) cosmological simulations performed with the moving-mesh code {\sc arepo}. DM… read more here.
Keywords: haloes illustris; shape; dark matter; matter haloes ... See more keywords
Fluorescent rings in star-free dark matter haloes
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DOI: 10.1093/mnras/stz1234
Abstract: Photoheating of the gas in low-mass dark matter (DM) haloes prevents baryons from cooling, leaving the haloes free of stars. Gas in these ‘dark’ haloes remains exposed to the ultraviolet background (UVB), and so is… read more here.
Keywords: rings star; dark matter; dark; matter haloes ... See more keywords
A model for core formation in dark matter haloes and ultra-diffuse galaxies by outflow episodes
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DOI: 10.1093/mnras/stz3306
Abstract: We present a simple model for the response of a dissipationless spherical system to an instantaneous mass change at its center, describing the formation of flat cores in dark matter haloes and ultra-diffuse galaxies (UDGs)… read more here.
Keywords: haloes ultra; matter; dark matter; formation ... See more keywords
Impact of filaments on galaxy formation in their residing dark matter haloes
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DOI: 10.1093/mnras/stz441
Abstract: We use a high-resolution zoom-in hydrodynamical simulation to investigate the impact of filaments on galaxy formation in their residing dark matter haloes. A method based on the density field and the Hoshen–Kopelman algorithm is developed… read more here.
Keywords: formation residing; matter; dark matter; matter haloes ... See more keywords
Sensitivity of dark matter haloes to their accretion histories
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DOI: 10.1093/mnras/stz552
Abstract: We apply our recently proposed "quadratic genetic modification" approach to generating and testing the effects of alternative mass accretion histories for a single $\Lambda$CDM halo. The goal of the technique is to construct different formation… read more here.
Keywords: accretion; dark matter; mass; accretion histories ... See more keywords