Results 1 to 10 of about 345,418 (264)
Powerful Radio-loud Quasars Are Triggered by Galaxy Mergers in the Cosmic Bright Ages [PDF]
The Astrophysical Journal, 2023 While supermassive black holes are ubiquitous features of galactic nuclei, only a small minority are observed during episodes of luminous accretion. The physical mechanism(s) driving the onset of fueling and ignition in these active galactic nuclei (AGN)
Peter Breiding +17 more
doaj +2 more sources
Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers [PDF]
The Astrophysical Journal, 2023 Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić +3 more
doaj +2 more sources
Origin and Evolution of Dust-obscured Galaxies in Galaxy Mergers [PDF]
The Astrophysical 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 ...
N. Yutani, Y. Toba, S. Baba, K. Wada
semanticscholar +3 more sources
Galaxy mergers can rapidly shut down star formation [PDF]
Monthly 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 ...
Stephen Gwyn +2 more
exaly +2 more sources
The Astrophysical JournalTo facilitate new studies of galaxy-merger-driven fueling of active galactic nuclei (AGNs), we present a catalog of 387 AGNs that we have identified in the final population of over 10,000 z < 0.15 galaxies observed by the Sloan Digital Sky Survey-IV ...
Julia M. Comerford +9 more
doaj +2 more sources
Radialization of Satellite Orbits in Galaxy Mergers [PDF]
The Astrophysical 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, W. Evans
semanticscholar +4 more sources
On the dependence of galaxy morphologies on galaxy mergers [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 The distribution of galaxy morphological types is a key test for models of galaxy formation and evolution, providing strong constraints on the relative contribution of different physical processes responsible for the growth of the spheroidal components ...
F. Fontanot +6 more
semanticscholar +6 more sources
Galaxy mergers in a fractal cosmology
European Physical Journal C: Particles and FieldsThis work discusses the influence of galaxy mergers in the evolution of a parabolic Lemaître–Tolman–Bondi (LTB) cosmology with simultaneous big bang endowed with two consecutive single fractal galaxy distributions systems possessing fractal dimension D ...
Bruno J. Souza +2 more
doaj +3 more sources
Galaxy Zoo: Major Galaxy Mergers Are Not a Significant Quenching Pathway [PDF]
The Astrophysical Journal, 2017 We use stellar mass functions to study the properties and the significance of quenching through major galaxy mergers. In addition to SDSS DR7 and Galaxy Zoo 1 data, we use samples of visually selected major galaxy mergers and post-merger galaxies.
Anna K. Weigel +11 more
semanticscholar +7 more sources
LATE-STAGE GALAXY MERGERS IN COSMOS TO z ∼ 1 [PDF]
Astronomical Journal, 2014 The role of major mergers in galaxy and black hole formation is not well-constrained. To help address this, we develop an automated method to identify late-stage galaxy mergers before coalescence of the galactic cores.
Mara Salvato +2 more
exaly +2 more sources