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Galaxy Quenching from Cosmic Web Detachment
The Open Journal of Astrophysics, 2019 We propose the Cosmic Web Detachment (CWD) model, a framework to interpret the star-formation history of galaxies in a cosmological context. The CWD model unifies several starvation mechanisms known to disrupt or stop star formation into one single ...
Miguel A. Aragon Calvo +2 more
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Entropy of the Universe and Hierarchical Dark Matter [PDF]
Entropy, 2022 We discuss the relationship between dark matter and the entropy of the universe, with the premise that dark matter exists in the form of primordial black holes (PBHs) in a hierarchy of mass tiers. The lightest tier includes all PBHs with masses below one
Paul H. Frampton
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Primordial alignment of elliptical galaxies in intermediate redshift clusters
Monthly Notices of the Royal Astronomical Society, 2015 We measure primordial alignments for the red galaxies in the sample of eight massive galaxy clusters in the southern sky from the CLASH-VLT Large Programme, at a median redshift of 0.375.
Yu Rong +2 more
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Galaxy Evolution with Manifold Learning [PDF]
EntropyMatter in the early Universe was nearly uniform, and galaxies emerged through the gravitational growth of small primordial density fluctuations. Astrophysics has been trying to unveil the complex physical phenomena that have caused the formation and ...
Tsutomu T. Takeuchi +2 more
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Gas accretion as the origin of chemical abundance gradients in distant galaxies
Nature, 2010 It has recently been suggested that galaxies in the early Universe can grow through the accretion of cold gas, and that this may have been the main driver of star formation and stellar mass growth. Because the cold gas is essentially primordial, it has a
G Cresci, F Mannucci, R Maiolino
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The Interstellar Medium of Dwarf Galaxies
Galaxies, 2022 Dwarf galaxies are by far the most numerous galaxies in the Universe, showing properties that are quite different from those of their larger and more luminous cousins. This review focuses on the physical and chemical properties of the interstellar medium
Christian Henkel +2 more
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The Astrophysical Journal Letters, 2023 The protoclusters in the epoch of reionization, traced by galaxy overdensity regions, are ideal laboratories for studying the process of stellar assembly and cosmic reionization.
T. Hashimoto +22 more
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Dwarf Galaxy Formation with and without Dark Matter–Baryon Streaming Velocities
The Astrophysical Journal, 2023 We study how supersonic streaming velocities of baryons relative to dark matter—a large-scale effect imprinted at recombination and coherent over ∼3 Mpc scales—affect the formation of dwarf galaxies at z ≳ 5.
Anna T. P. Schauer +6 more
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High-redshift JWST Observations and Primordial Non-Gaussianity
The Astrophysical Journal, 2023 Several bright and massive galaxy candidates at high redshifts have been recently observed by the James Webb Space Telescope. Such early massive galaxies seem difficult to reconcile with standard Λ cold dark matter model predictions.
Matteo Biagetti +2 more
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The Origin of the Large Magellanic Cloud Globular Cluster NGC 2005
The Astronomical Journal, 2023 The ancient Large Magellanic Cloud (LMC) globular cluster NGC 2005 has recently been reported to have an ex situ origin, thus, setting precedents that the LMC could have partially formed from smaller merged dwarf galaxies.
Andrés E. Piatti, Yutaka Hirai
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