Results 51 to 60 of about 327,275 (314)
Galaxy And Mass Assembly (GAMA): refining the local galaxy merger rate using morphological information [PDF]
, 2014 We use the Galaxy And Mass Assembly (GAMA) survey to measure the local Universe mass-dependent merger fraction and merger rate using galaxy pairs and the CAS (concentration, asymmetry, and smoothness) structural method, which identifies highly asymmetric
Kevin R. V. Casteels +18 more
semanticscholar +1 more source
The Open Journal of Astrophysics, 2023 Despite the importance of Active Galactic Nuclei (AGN) in galaxy evolution, the mechanisms that fuel AGN activity remain poorly understood. Theoretical models suggest that major mergers of galaxies contribute strongly to AGN fuelling, particularly at ...
Carolin Villforth
doaj +1 more source
A Precise Distance to the Host Galaxy of the Binary Neutron Star Merger GW170817 Using Surface Brightness Fluctuations [PDF]
, 2018 The joint detection of gravitational waves (GWs) and electromagnetic radiation from the binary neutron star (BNS) merger GW170817 has provided unprecedented insight into a wide range of physical processes: heavy element synthesis via the r-process; the ...
M. Cantiello +27 more
semanticscholar +1 more source
Starbursts in Multiple Galaxy Mergers [PDF]
The Astrophysical Journal, 2001 23 pages 16 figures,2000,ApJ,545 in press.
openaire +3 more sources
MOST SUBMILLIMETER GALAXIES ARE MAJOR MERGERS [PDF]
The Astrophysical Journal, 2010 We analyse subarcsecond resolution interferometric CO line data for twelve sub-millimetre-luminous (S850um > 5mJy) galaxies with redshifts between 1 and 3, presenting new data for four of them. Morphologically and kinematically most of the twelve systems appear to be major mergers. Five of them are well-resolved binary systems, and seven are compact
Reinhard Genzel +13 more
openaire +5 more sources
Spectral Index of the Filaments in the Abell 523 Radio Halo
Galaxies, 2021 The galaxy cluster Abell 523 hosts a radio halo characterized by the presence of two filaments transversely located with respect to the cluster merger axis.
Valentina Vacca +7 more
doaj +1 more source
Numerical simulations of dwarf galaxy merger trees [PDF]
, 2014 We investigate the evolution of dwarf galaxies using N-body/smoothed particle hydrodynamics simulations that incorporate their formation histories through merger trees constructed using the extended Press-Schechter formalism.
A. Cloet-Osselaer +5 more
semanticscholar +1 more source
Event Rate of Fast Radio Bursts from Binary Neutron Star Mergers
The Astrophysical Journal, 2023 It is proposed that a one-off fast radio burst (FRB) with periodic structure may be produced during the inspiral phase of a binary neutron star (BNS) merger. In this paper, we study the event rate of such kind of FRB.
Zhi-Lin Chen +3 more
doaj +1 more source
Galaxy formation as a cosmological tool – I. The galaxy merger history as a measure of cosmological parameters [PDF]
, 2014 As galaxy formation and evolution over long cosmic time-scales depends to a large degree on the structure of the universe, the assembly history of galaxies is potentially a powerful approach for learning about the universe itself.
C. Conselice +4 more
semanticscholar +1 more source
Galaxy Zoo: Mergers – Dynamical models of interacting galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for full insight into the processes that lead to enhanced star formation.
Holincheck, Anthony J. +8 more
openaire +6 more sources