Results 11 to 20 of about 211,606 (245)
Secular evolution in galaxies [PDF]
Symposium - International Astronomical Union, 1985 We have adapted the N-body code of Van Albada (1982) to study the secular evolution of a hot collisionless stellar component (E galaxy or galactic bulge) due to slow changes in another component of the same galaxy. Our equilibrium starting model is a non-rotating triaxial ellipsoid with axial ratios 1.3:1.4:2.0; the effects of the “other component” are
A. May, Colin Norman, T. S. van Albada
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Galaxy harassment and the evolution of clusters of galaxies [PDF]
Nature, 1996 Disturbed spiral galaxies with high rates of star formation pervaded clusters of galaxies just a few billion years ago, but nearby clusters exclude spirals in favor of ellipticals. ``Galaxy harassment" (frequent high speed galaxy encounters) drives the morphological transformation of galaxies in clusters, provides fuel for quasars in subluminous hosts ...
Alan Dressler +4 more
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Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation
Open 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.
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The clustering evolution of the galaxy distribution [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 18 pages, 9 figures. Submitted to MNRAS. High-resolution copies of the colour figures can be found at http://www.astro.caltech.edu/~abenson/Mocks/mocks ...
Benson, A.J. +4 more
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An analysis of the evolving comoving number density of galaxies in hydrodynamical simulations [PDF]
, 2015 The cumulative comoving number-density of galaxies as a function of stellar mass or central velocity dispersion is commonly used to link galaxy populations across different epochs.
Griffen, Brendan F. +12 more
core +3 more sources
Tertiary mirror location diversity on very large etendue telescope architectures [PDF]
EPJ Web of ConferencesTwo distinct reflective telescope designs utilizing a variation of three-mirror anastigmat configuration were investigated. We demonstrate how the strategic placement of the tertiary mirror significantly influences the telescope's form factor, enabling ...
Kim Daewook, Cho Hyejeon
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Evolution of galaxy clustering [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 Four pages, 1 figure.
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Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies
The Astrophysical Journal Letters, 2023 Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu +8 more
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Non-parametric analysis of the rest-frame UV sizes and morphological
disturbance amongst L* galaxies at 4
, 2016 We present the results of a study investigating the sizes and morphologies of redshift 4 < z < 8 galaxies in the CANDELS GOODS-S, HUDF and HUDF parallel fields.
Curtis-Lake, E. +14 more
core +5 more sources
The Morphological Evolution of Galaxies
Science, 2001 Many galaxies have taken on their familiar appearance relatively recently. In the distant Universe, galaxy morphology deviates significantly (and systematically) from that of nearby galaxies at redshifts (z) as low as 0.3. This corresponds to a time ∼3.5 × 109years in the past, which is only ∼25% of the present age of the Universe.
Roberto Abraham, Sidney van den Bergh
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