Results 1 to 10 of about 5,087 (165)
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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Galaxy Formation and Chemical Evolution
International Journal of Astronomy and Astrophysics, 2014 14 pages, 5 ...
S Sahijpal
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The formation and evolution of massive galaxies [PDF]
Research in Astronomy and Astrophysics, 2021 Abstract The discovery of massive galaxies at high redshifts, especially the passive ones, poses a big challenge for the current standard galaxy formation models. Here we use the semi-analytic galaxy formation model developed by Henriques et al.
Jing, Ying-Jie +4 more
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Cosmological evolution and hierarchical galaxy formation [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We provide a new multi-waveband compilation of the data describing the cosmological evolution of quasars, and discuss a model that attributes the evolution to variation in the rate of merging between dark halos in a hierarchical universe. We present a new Press-Schechter calculation of the expected merger rate and show that this can reproduce the ...
Percival, W, Miller, L
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The Astrophysical Journal, 2023 We present morphologies of galaxies at z ≳ 9 resolved by JWST/NIRCam 2–5 μ m imaging. Our sample consists of 22 galaxy candidates identified by stringent dropout and photo- z criteria in GLASS, CEERS, SMACS J0723, and Stephan’s Quintet flanking fields ...
Yoshiaki Ono +10 more
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GAIA: Composition, formation and evolution of the Galaxy [PDF]
Astronomy & Astrophysics, 2001 Accepted by A&A: 25 pages, 8 ...
Perryman, M.A.C. +9 more
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LIMFAST. I. A Seminumerical Tool for Line Intensity Mapping
The Astrophysical Journal, 2023 We present LIMFAST, a seminumerical code for simulating high-redshift galaxy formation and cosmic reionization as revealed by multitracer line intensity mapping (LIM) signals.
Lluís Mas-Ribas +4 more
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Monolithic View of Galaxy Formation and Evolution
Galaxies, 2014 We review and critically discuss the current understanding of galaxy formation and evolution limited to Early Type Galaxies (ETGs) as inferred from the observational data and briefly contrast the hierarchical and quasi-monolithic paradigms of formation ...
Cesare Chiosi +3 more
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LIMFAST. II. Line Intensity Mapping as a Probe of High-redshift Galaxy Formation
The Astrophysical Journal, 2023 The epoch of reionization (EoR) offers a unique window into the dawn of galaxy formation, through which high-redshift galaxies can be studied by observations of both themselves and their impact on the intergalactic medium.
Guochao Sun +7 more
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Formation and Evolution of Disk Galaxies [PDF]
Proceedings of the International Astronomical Union, 2003 AbstractGlobal star formation is the key to understanding galaxy disk formation. This in turn depends on gravitational instability of disks and continuing gas accretion as well as minor merging. A key component is feedback from supernovae. Primary observational constraints on disk galaxy formation and evolution include the Schmidt-Kennicutt law, the ...
openaire +4 more sources