Results 1 to 10 of about 2,162,294 (370)
THE LARSON-TINSLEY EFFECT IN THE ULTRAVIOLET: INTERACTING VERSUS “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.
Beverly J. Smith +3 more
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Probing the physics of interacting galaxies [PDF]
Astrophysics and Space Science, 2003 Both Arp 140 and Arp 104 reveal extended tidal tails in the HI. The Halpha and FIR fluxes of Arp 140 yield similar SFR of ~0.8 solar masses per year. In contrast the Halpha flux of Arp 104 yields a SFR of ~0.05 solar masses per year, ~ 20 times smaller than that obtained from the FIR flux.
Harriet Cullen
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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
A Self-interacting Dark Matter Solution to the Extreme Diversity of Low-mass Halo Properties [PDF]
The Astrophysical Journal Letters, 2023 The properties of low-mass dark matter (DM) halos appear to be remarkably diverse relative to cold, collisionless DM predictions, even in the presence of baryons.
Ethan O. Nadler, Daneng Yang, Hai-Bo Yu
doaj +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
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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
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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
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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