Results 21 to 30 of about 211,606 (245)

The Morphological Evolution of Field Galaxies [PDF]

open access: yesAstrophysics and Space Science, 1995
I review two observational programs which, together, promise to unravel the detailed astrophysical evolution of normal field galaxies over the last 5-7 Gyr. Systematic ground-based spectroscopy of faint galaxies have revealed an increasing faint end slope for the luminosity function with redshift.
openaire   +7 more sources

Secular Evolution of Galaxy Morphologies [PDF]

open access: yes, 1996
Today we have numerous evidences that spirals evolve dynamically through various secular or episodic processes, such as bar formation and destruction, bulge growth and mergers, sometimes over much shorter periods than the standard galaxy age of 10-15 Gyr.
A Broeils   +45 more
core   +3 more sources

Evolution of galaxies in clusters

open access: yesThe Astrophysical Journal, 1994
33 pages, normal ...
Joseph Silk, Stephane Charlot
openaire   +4 more sources

The Thick Disk in the Galaxy NGC 4244 from S^4G Imaging [PDF]

open access: yes, 2010
If thick disks are ubiquitous and a natural product of disk galaxy formation and/or evolution processes, all undisturbed galaxies that have evolved during a significant fraction of a Hubble time should have a thick disk. The late-type spiral galaxy NGC
Athanassoula, E.   +18 more
core   +5 more sources

Evolution of gas in galaxies [PDF]

open access: yesProceedings of From Planets to Dark Energy: the Modern Radio Universe — PoS(MRU), 2008
5 pages, 2 figures. To appear in 'From Planets to Dark Energy: the Modern Radio Universe' (Manchester, October 2007), eds. R.
openaire   +3 more sources

Tidal Tails and Galaxy Evolution [PDF]

open access: yes, 2000
We review recent results on the tidal structures of spiral galaxies. Topics included are general characteristics of tails; kinematics of tidal structures and dark haloes of host galaxies; frequency of tidal distortions at z~1.Comment: 5 pages ...
Karachentsev I. D.   +5 more
core   +3 more sources

JWST Reveals a Population of Ultrared, Flattened Galaxies at 2 ≲ z ≲ 6 Previously Missed by HST

open access: yesThe Astrophysical Journal Letters, 2023
With just a month of data, JWST is already transforming our view of the universe, revealing and resolving starlight in unprecedented populations of galaxies.
Erica J. Nelson   +25 more
doaj   +1 more source

Evolution of galaxies in clusters [PDF]

open access: yesProceedings of Baryons in Dark Matter Halos — PoS(BDMH2004), 2004
I summarize what is know about the evolution of galaxies in clusters from the observational point of view presenting results at high (z~1), intermediate (z~0.5) and low (z~0) redshifts. I comment on the comparison between observations and predictions of CDM models, highlighting the observational landmarks more relevant for this comparison, such as the ...
openaire   +3 more sources

Galaxy-galaxy(-galaxy) lensing as a sensitive probe of galaxy evolution

open access: yes, 2012
The gravitational lensing effect provides various ways to study the mass environment of galaxies. We investigate how galaxy-galaxy(-galaxy) lensing can be used to test models of galaxy formation and evolution.
Adelman-McCarthy   +46 more
core   +1 more source

Internal Secular Evolution in Disk Galaxies: The Growth of Pseudobulges

open access: yes, 2007
Observational and theoretical evidence that internal, slow ("secular") evolution reshapes galaxy disks is reviewed in Kormendy & Kennicutt (2004, ARAA, 42, 603). This update has three aims.
Athanassoula   +14 more
core   +1 more source

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