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Galaxy Disks [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2011
The formation and evolution of galactic disks is particularly important for understanding how galaxies form and evolve, and the cause of the variety in which they appear to us.
de Jong RS   +8 more
core   +4 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

The Formation of Galaxy Disks

open access: yes, 2008
We present a new set of multi-million particle SPH simulations of the formation of disk dominated galaxies in a cosmological context. Some of these galaxies are higher resolution versions of the models already described in Governato et al (2007).
Brook, C., Governato, F., Mayer, L.
core   +3 more sources

Disk Galaxies and Galaxy Disks [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2000
The conference Galaxy Disks and Disk Galaxies, sponsored by the Vatican Observatory, was held in June 12-16, 2000 at the Pontifical Gregorian University, in Rome (Italy). The meeting hosted about 230 participants coming from 30 countries. The very full program consisted of 29 review papers, 34 invited talks, and more than 180 posters.
J, J. G. Funes S., Corsini, E. M.
  +5 more sources

A Rest-frame Near-IR Study of Clumps in Galaxies at 1 < z < 2 Using JWST/NIRCam: Connection to Galaxy Bulges

open access: yesThe Astrophysical Journal, 2023
A key question in galaxy evolution has been the importance of the apparent “clumpiness” of high-redshift galaxies. Until now, this property has been primarily investigated in rest-frame UV, limiting our understanding of their relevance.
Boris S. Kalita   +6 more
doaj   +1 more source

GALAXY DISKS ARE SUBMAXIMAL [PDF]

open access: yesThe Astrophysical Journal, 2011
We measure the contribution of galaxy disks to the overall gravitational potential of 30 nearly face-on intermediate-to-late-type spirals from the DiskMass Survey. The central vertical velocity dispersion of the disk stars, sigma(z,R=0), is related to the maximum rotation speed (Vmax) as sigma(z,R=0) ~ 0.26 Vmax, consistent with previous measurements ...
Bershady, Matthew A.   +5 more
openaire   +4 more sources

Tilted Dark Halos Are Common and Long-lived, and Can Warp Galactic Disks

open access: yesThe Astrophysical Journal Letters, 2023
In the Lambda cold dark matter paradigm, the dark halo governs the gravitational potential within which a galaxy can form and evolve. In this Letter we show that the present-day inner ( r < 50 kpc) dark halo can be significantly misaligned with the ...
Jiwon Jesse Han   +3 more
doaj   +1 more source

XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk

open access: yesThe Astrophysical Journal Letters, 2023
We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of planet-forming disks in massive star-forming regions.
María Claudia Ramírez-Tannus   +26 more
doaj   +1 more source

Automatic Classification of Galaxy Morphology: A Rotationally-invariant Supervised Machine-learning Method Based on the Unsupervised Machine-learning Data Set

open access: yesThe Astronomical Journal, 2023
Classification of galaxy morphology is a challenging but meaningful task for the enormous amount of data produced by the next-generation telescope.
GuanWen Fang   +10 more
doaj   +1 more source

Properties of isolated disk galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2004
28 pages, 5 figures.
J. VARELA   +5 more
openaire   +3 more sources

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