Spatially Offset Active Galactic Nuclei. III. Discovery of Late-stage Galaxy Mergers with the Hubble Space Telescope [PDF]
Astrophysical Journal, 2018 Galaxy pairs with separations of only a few kiloparsecs represent important stages in the merger-driven growth of supermassive black holes (SMBHs). However, such mergers are difficult to identify observationally due to the correspondingly small angular ...
R. Barrows +2 more
semanticscholar +3 more sources
Deep learning for galaxy mergers in the galaxy main sequence [PDF]
Proceedings of the International Astronomical Union, 2019 AbstractStarburst galaxies are often found to be the result of galaxy mergers. As a result, galaxy mergers are often believed to lie above the galaxy main sequence: the tight correlation between stellar mass and star formation rate. Here, we aim to test this claim.Deep learning techniques are applied to images from the Sloan Digital Sky Survey to ...
Floris van der Tak +7 more
openaire +10 more sources
A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies. I. Galaxy Mergers and Quasar Activity [PDF]
, 2007 We develop a model for the cosmological role of mergers in the evolution of starbursts, quasars, and spheroidal galaxies. By combining theoretically well-constrained halo and subhalo mass functions as a function of redshift and environment with empirical
P. Hopkins +3 more
semanticscholar +3 more sources
Starbursts in Multiple Galaxy Mergers [PDF]
The Astrophysical Journal, 2001 23 pages 16 figures,2000,ApJ,545 in press.
Athanassoula E. +9 more
openaire +5 more sources
Merger relics of cluster galaxies [PDF]
Astronomy & Astrophysics, 2013 Context. Sheen and collaborators recently found that a surprisingly large portion (38%) of massive early-type galaxies in heavy clusters show strong merger-related disturbed features. This contradicts the general understanding that massive clusters are hostile environments for galaxy mergers. Considering the significance of mergers in galaxy evolution,
Yi, S. K. +4 more
openaire +6 more sources
Dancing to CHANGA: a self-consistent prediction for close SMBH pair formation time-scales following galaxy mergers [PDF]
, 2017 We present the first self-consistent prediction for the distribution of formation timescales for close Supermassive Black Hole (SMBH) pairs following galaxy mergers.
M. Tremmel +4 more
semanticscholar +6 more sources
Identifying Galaxy Mergers in Simulated CEERS NIRCam Images Using Random Forests [PDF]
Astrophysical 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
Origin and Evolution of Dust-obscured Galaxies in Galaxy Mergers [PDF]
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 ...
Naomichi Yutani +3 more
semanticscholar +1 more source
Radialization of Satellite Orbits in Galaxy Mergers [PDF]
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, N. Evans
semanticscholar +1 more source
Statistics of galaxy mergers: bridging the gap between theory and observation [PDF]
, 2021 We present a study of galaxy mergers up to z = 10 using the Planck Millennium cosmological dark matter simulation and the GALFORM semi-analytical model of galaxy formation. Utilising the full (800 Mpc)3 volume of the simulation, we studied the statistics
F. Huvsko, C. Lacey, C. Baugh
semanticscholar +1 more source