Results 141 to 150 of about 373,689 (248)

Galaxy evolution in the post-merger regime. III -- The triggering of active galactic nuclei peaks immediately after coalescence

open access: yesThe Open Journal of Astrophysics
Galaxy mergers have been shown to trigger AGN in the nearby universe, but the timescale over which this process happens remains unconstrained. The Multi-Model Merger Identifier (MUMMI) machine vision pipeline has been demonstrated to provide reliable ...
Sara Ellison   +8 more
doaj   +1 more source

Anisotropic Velocity Fluctuations in Galaxy Mergers: A Probe of the Magnetic Field

open access: yesThe Astrophysical Journal
Magnetic fields and turbulence are fundamental to the evolutions of galaxies, yet their precise measurement and analysis present significant challenges.
Yue Hu   +5 more
doaj   +1 more source

A Physically Motivated Framework to Compare the Merger Timescales of Isolated Low- and High-mass Galaxy Pairs Across Cosmic Time

open access: yesThe Astrophysical Journal
The merger timescales of isolated low-mass pairs (10 ^8 < M _* < 5 × 10 ^9 M _⊙ ) on cosmologically motivated orbits have not yet been studied in detail, though isolated high-mass pairs (5 × 10 ^9 < M _* < 10 ^11 M _⊙ ) have been studied extensively.
Katie Chamberlain   +4 more
doaj   +1 more source

The Growth of Galaxy Stellar Haloes over 0.2 ≤ z ≤ 1.1

open access: yesThe Astrophysical Journal
Galaxies are predicted to assemble their stellar haloes through the accretion of stellar material from interactions with their cosmic environment. Observations that trace stellar halo buildup probe the processes that drive galaxy size and stellar mass ...
Devin J. Williams   +11 more
doaj   +1 more source

Atomic and molecular gas in the merger galaxy NGC 1316 (Fornax A) and its environment [PDF]

open access: bronze, 2001
C. Horellou   +5 more
openalex   +1 more source

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