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Interactions and mergers of galaxies
Resonance, 2007When two galaxies approach each other, we can witness the effects of the tidal forces on a gigantic scale. Peculiar features like galactic bridges and galactic tails may form, or the two galaxies may even merge into each other and form a single system. Merger of two spiral galaxies leads to the formation of an elliptical galaxy.
S M Alladin, S N Hasan
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Gravitational Interactions between Galaxies
Symposium - International Astronomical Union, 1974Recent theoretical studies of the consequences of fierce tidal interactions between galaxies are reviewed and compared.
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Bar Formation by Galaxy-Galaxy Interactions
2004Bar formation process in interacting galaxies is reviewed on the basis of recent numerical simulations. I focus especially on the possible kinematical difference between tidally-induced bars and spontaneous bars: the former spans a wider range in the rotation rate, depending upon the parameters of the interaction as well as the internal structure of ...
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The Hydrodynamical Interaction of Galaxies
1991We present 3D hydrodynamical calculations on interacting/merging galaxies. We find that nearly head-on collisions of galaxies lead to new galaxy formation.
M. Umemura, S. Yoshioka
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On the nature of interacting galaxies
Astrophysics, 1970S ta t i s t i ca l data . I n t e r ac t i ng galaxies inc lude ga l axies with d i s to r t ed shape, ga laxies i m m e r s e d in a common luminous cloud, coa lesc ing galaxies , ga laxies joined by a bar and showing " ta i l s , " c lose groups ("nes t s" ) , and chains of ga lax ies .
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The Effects of Galaxy — Galaxy Interactions on Nuclear Activity
1986The notion that galaxy — galaxy interactions do affect the properties of galaxy nuclei is not new. The earliest indications come from surveys of the radio continuum emission from spiral galaxies. Sulentic (1976) and Stocke (1978) demonstrated that galaxies in close pairs show an excess of radio emission.
J. M. van der Hulst +3 more
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Interacting galaxies and mergers
Astrophysics and Space Science, 1993A study of the merger time-scales of various types of interacting galaxies is conducted on the basis of the collisional theory. The results indicate that in the absence of halos, violently interacting galaxies merge in a time-scale of ~ 108 years; but the mildly interacting ones have merger time-scales from ~ 109 to 1010 years. However, in the presence
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Galaxy‐galaxy interactions as triggers of star formation
Astronomische Nachrichten, 2009AbstractGalaxy‐galaxy interactions represent the main physical processes that trigger substantial star formation in galaxies. In order to study the galaxy interactions effects on color and morphology of the galaxies in the fields of two radio galaxies at z ∼ 1, we combined optical‐NIR photometry and HST/WFPC2 morphology data from the Stanford et al ...
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Bursty star formation and galaxy–galaxy interactions in low-mass galaxies 1 Gyr after the Big Bang
Monthly Notices of the Royal Astronomical Society, 2023Yoshihisa Asada +2 more
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