Results 11 to 20 of about 370,836 (359)

A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity [PDF]

open access: yes, 2007
(Abridged) We develop a model for the cosmological role of mergers in the evolution of starbursts, quasars, and spheroidal galaxies. Combining halo mass functions (MFs) with empirical halo occupation models, we calculate where major galaxy-galaxy mergers
Athanassoula E.   +21 more
core   +2 more sources

Simulations of galaxy mergers [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 1982
J. V. Villumsen
openalex   +3 more sources

A library of galaxy mergers

open access: green, 2003
2 pages, 2 figures, contribution in Scientific Highlights, SF2A-2003, to be published by EDP ...
F. Combes, A. L. Melchior
openalex   +4 more sources

Galaxy Mergers in a Cosmological Context

open access: yes, 2014
When the vast distances to galaxies were understood in the 20th century, galaxies were considered to be forming and evolving in isolation[1]. However, irregulars were discovered that did not fit anywhere on the Hubble “tuning fork” [2].
Kalcheva Ivayla
semanticscholar   +3 more sources

Jet Interaction with Galaxy Cluster Mergers

open access: yesThe Astrophysical Journal
Active galactic nucleus (AGN) bubbles in cool-core galaxy clusters are believed to facilitate the transport of cosmic-ray electrons (CRe) throughout the cluster.
P. Domínguez-Fernández   +6 more
doaj   +3 more sources

Identifying Galaxy Mergers in Simulated CEERS NIRCam Images Using Random Forests [PDF]

open access: yesAstrophysical Journal, 2022
Identifying merging galaxies is an important—but difficult—step in galaxy evolution studies. We present random forest (RF) classifications of galaxy mergers from simulated JWST images based on various standard morphological parameters.
Caitlin Rose   +25 more
semanticscholar   +1 more source

Galaxy mergers can rapidly shut down star formation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2022
Galaxy mergers trigger both star formation and accretion on to the central supermassive black hole. As a result of subsequent energetic feedback processes, it has long been proposed that star formation may be promptly extinguished in galaxy merger ...
S. Ellison   +8 more
semanticscholar   +1 more source

Origin and Evolution of Dust-obscured Galaxies in Galaxy Mergers [PDF]

open access: yesAstrophysical Journal, 2022
Dust-obscured galaxies (DOGs), which are observationally characterized as faint in the optical and bright in the infrared, are the final stage of galaxy mergers and are essential objects in the evolution of galaxies and active galactic nuclei (AGNs ...
Naomichi Yutani   +3 more
semanticscholar   +1 more source

Radialization of Satellite Orbits in Galaxy Mergers [PDF]

open access: yesAstrophysical Journal, 2021
We consider the orbital evolution of satellites in galaxy mergers, focusing on the evolution of eccentricity. Using a large suite of N-body simulations, we study the phenomenon of satellite orbital radialization—a profound increase in the eccentricity of
E. Vasiliev, V. Belokurov, N. Evans
semanticscholar   +1 more source

Galaxy mergers in eagle do not induce a significant amount of black hole growth yet do increase the rate of luminous AGN [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We investigate the connection between galaxy–galaxy mergers and enhanced black hole (BH) growth using the cosmological hydrodynamical eagle simulation.
S. McAlpine   +6 more
semanticscholar   +1 more source

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