Results 1 to 10 of about 2,175,682 (286)
The Larson-Tinsley Effect in the UV: Interacting vs. `Normal' Spiral Galaxies [PDF]
, 2010 We compare the UV-optical colors of a well-defined set of optically-selected pre-merger interacting galaxy pairs with those of normal spirals. The shorter wavelength colors show a larger dispersion for the interacting galaxies than for the spirals.
Abazajian +32 more
core +2 more sources
The NGC 1614 interacting galaxy [PDF]
, 2013 Minor mergers frequently occur between giant and gas-rich low-mass galaxies and can provide significant amounts of interstellar matter to refuel star formation and power active galactic nuclei (AGN) in the giant systems.
S. König +4 more
openalex +3 more sources
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 +7 more sources
Interacting galaxies and mergers
Nature Astronomy, 2019 Two landmark papers in the 1970s contributed strongly to establishing the importance of galaxy interactions and mergers in the formation and evolution of galaxies, using only gravity, and the ensuing dynamical friction.
E. Athanassoula, A. Bosma
openalex +5 more sources
THE INTERACTING GALAXY PAIR KPG 390: Hα KINEMATICS [PDF]
, 2010 In this work, we present scanning Fabry–Perot (FP) Hα observations of the isolated interacting galaxy pair NGC 5278/79 obtained with the PUMA FP interferometer. We derived velocity fields and rotation curves for both galaxies.
P. Repetto +3 more
openalex +3 more sources
A massive interacting galaxy 510 million years after the Big Bang [PDF]
Nature Astronomy, 2023 James Webb Space Telescope observations have spectroscopically confirmed the existence of galaxies as early as 300 Myr after the Big Bang and with a higher number density than what was expected based on galaxy formation models and Hubble Space Telescope ...
K. Boyett +28 more
semanticscholar +1 more source
Confronting self-interacting neutrinos with the full shape of the galaxy power spectrum [PDF]
Physical Review D, 2023 A cosmological scenario in which the onset of neutrino free streaming in the early Universe is delayed until close to the epoch of matter-radiation equality has been shown to provide a good fit to some cosmic microwave background (CMB) data, while being ...
D. Camarena +2 more
semanticscholar +1 more source
Self-interacting dark matter and small-scale gravitational lenses in galaxy clusters [PDF]
Physical Review D, 2021 Recently, Meneghetti et al. reported an excess of small-scale gravitational lenses in galaxy clusters. We study its implications for self-interacting dark matter (SIDM), compared with standard cold dark matter (CDM).
Daneng Yang, Hai-Bo Yu
semanticscholar +1 more source
A massive blow for ΛCDM – the high redshift, mass, and collision velocity of the interacting galaxy cluster El Gordo contradicts concordance cosmology [PDF]
, 2020 El Gordo (ACT-CL J0102-4915) is an extremely massive galaxy cluster ($M_{200} \approx 3 \times 10^{15}$ $M_{\odot}$) at redshift $z = 0.87 $ composed of two subclusters with mass ratio 3.6 merging at speed $V_{infall} \approx 2500$ km/s.
Elena Asencio, I. Banik, P. Kroupa
semanticscholar +1 more source
Bibechana, 2021 We present a spectroscopic study of an interacting emission-line dwarf galaxy SDSS J134326.99+431118.7. We analyzed eight-strong emission lines of wavelength in a range of 3902.1Å to 6619.1Å.
Daya Nidhi Chhatkuli +2 more
doaj +3 more sources