Results 11 to 20 of about 2,793,104 (349)
The Formation and Evolution of Galaxies
, 1998 Galaxies represent the visible fabric of the Universe and there has been considerable progress recently in both observational and theoretical studies. The underlying goal is to understand the present-day diversity of galaxy forms, masses and luminosities.
Richard S. Ellis
openalex +4 more sources
Models for the Formation and Evolution of Spherical Galaxies [PDF]
Symposium - International Astronomical Union, 1974 Detailed dynamical model calculations based on a conventional collapse picture of galaxy formation, and conventional assumptions concerning star formation and stellar evolution, are found to be able to reproduce satisfactorily the basic structural and photometric properties of elliptical galaxies.
Richard B. Larson
openalex +3 more sources
Galaxy Formation and Evolution: Low Surface Brightness Galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We investigatein detail the hypothesisthat low surfacebrightnessgalaxies(LSB) differfrom ordinary galaxies simply because they form in halos with large spin parameters.We compute star formation rates using the Schmidt law, assuming the same gas ...
R. Jimenez +3 more
semanticscholar +5 more sources
The formation and evolution of low-surface-brightness galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Our statistical understanding of galaxy evolution is fundamentally driven by objects that lie above the surface-brightness limits of current wide-area surveys (μ ∼ 23 mag arcsec−2).
G. Martin +8 more
semanticscholar +8 more sources
The role of black holes in galaxy formation and evolution [PDF]
Nature, 2009 Virtually all massive galaxies, including our own, host central black holes ranging in mass from millions to billions of solar masses. The growth of these black holes releases vast amounts of energy that powers quasars and other weaker active galactic ...
A. Cattaneo +16 more
semanticscholar +5 more sources
The Formation and Evolution of Star Clusters and Galaxies [PDF]
Highlights of Astronomy, 2005 AbstractThis paper addresses the questions of what we have learned about how and when dense star clusters form, and what studies of star clusters have revealed about galaxy formation and evolution. One important observation is that globular clusters are observed to form in galaxy mergers and starbursts in the local universe, which both provides ...
Stephen E. Zepf
openalex +4 more sources
A self-similar model of galaxy formation and dark halo relaxation [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 We develop a spherical self-similar model for the formation of a galaxy through gas collapsing in an isolated self-gravitating dark matter halo. As is well known, the self-similarity assumption makes the problem eminently tractable by reducing it to a ...
Premvijay Velmani, A. Paranjape
semanticscholar +1 more source
CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST [PDF]
Astrophysical Journal Letters, 2022 We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z ∼ 0.5 to >10 using several imaging and ...
S. Finkelstein +66 more
semanticscholar +1 more source
Galaxy formation and evolution
Theoretical and Natural Science, 2023 Galaxies as the most important structures in the universe and Galaxy formation is a sequential redistribution process.The basic picture of galaxy formation was first proposed by White and Rees.The physical processes involved in galaxy formation are very ...
Zeyue Xu
semanticscholar +1 more source
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
doaj +1 more source