Results 1 to 10 of about 146,314 (245)

Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation

open access: yesOpen Astronomy, 2010
We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
doaj   +3 more sources

Models of Late-type Disk Galaxies: 1-D Versus 2-D

open access: yesOpen Astronomy, 2014
We investigate the effects of stochasticity on the observed galaxy parameters by comparing our stochastic star formation two-dimensional (2-D) galaxy evolution models with the commonly used one-dimensional (1-D) models with smooth star formation. The 2-D
Mineikis T., Vansevičius V.
doaj   +3 more sources

Monolithic View of Galaxy Formation and Evolution [PDF]

open access: yesGalaxies, 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
doaj   +4 more sources

Morphologies of Galaxies at z ≳ 9 Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at z ∼ 12

open access: yesThe 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
doaj   +1 more source

LIMFAST. I. A Seminumerical Tool for Line Intensity Mapping

open access: yesThe 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
doaj   +1 more source

LIMFAST. II. Line Intensity Mapping as a Probe of High-redshift Galaxy Formation

open access: yesThe 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
doaj   +1 more source

DESI Survey Validation Data in the COSMOS/Hyper Suprime-Cam Field: Cool Gas Trace Main-sequence Star-forming Galaxies at the Cosmic Noon

open access: yesThe Astrophysical Journal, 2023
We present the first result in exploring the gaseous halo and galaxy correlation using the Dark Energy Spectroscopic Instrument survey validation data in the Cosmic Evolution Survey (COSMOS) and Hyper Suprime-Cam field.
Siwei Zou   +25 more
doaj   +1 more source

Scaling Properties of Galaxy Groups

open access: yesUniverse, 2021
Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the cosmic matter ...
Lorenzo Lovisari   +3 more
doaj   +1 more source

Galaxy formation with radiative and chemical feedback [PDF]

open access: yes, 2015
Here we introduce GAMESH, a novel pipeline which implements self-consistent radiative and chemical feedback in a computational model of galaxy formation. By combining the cosmological chemical-evolution model GAMETE with the radiative transfer code CRASH,
de Bennassuti, M.   +5 more
core   +3 more sources

Galaxy Formation Theory [PDF]

open access: yes, 2010
We review the current theory of how galaxies form within the cosmological framework provided by the cold dark matter paradigm for structure formation. Beginning with the pre-galactic evolution of baryonic material we describe the analytical and numerical
Abadi   +563 more
core   +1 more source

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