Results 81 to 90 of about 113,929 (193)
The Astrophysical Journal Supplement Series, 1978 In this paper we investigate the effect of weak tidal interactions among galaxies in clusters. We obtain the Fokker-Planck coefficients for this process by making use of the impulse approximation. We assume that the outer regions of a galaxy are well described by isotropically distributed stellar orbits with small angular momenta.
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Disclosing Submillimeter Galaxy Formation: Mergers or Secular Evolution?
The Astrophysical JournalWe analyze the morphology of 125 submillimeter galaxies (SMGs) in the PRIMER-COSMOS field using double Sérsic modeling on JWST NIRCam images across six bands (F150W, F200W, F277W, F356W, F410M, and F444W), with SMGs being classified by the bulge Sérsic ...
Siu-Wang Chan, Yiping Ao, Qing-hua Tan
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The Astrophysical JournalWe present deep, wideband multifrequency radio observations (144 MHz−8 GHz) of the remarkable galaxy group NGC 741, which yield crucial insights into the interaction between the infalling head-tail radio galaxy (NGC 742) and the main group.
K. Rajpurohit +19 more
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The origin of gas stripping of galaxies in group environments
Astronomy & AstrophysicsWe investigate how low-mass group environments (Mvir ∼ 1012 − 13 M⊙) influence the gas content of their satellite galaxies with M* > 107 M⊙ using the NEWHORIZON2 simulation.
Rhee Jinsu +14 more
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Tidal Formation of Dark Matter Deficit Diffuse Galaxy NGC 1052-DF2 by SIDM
The Astrophysical JournalObservations have revealed a significant dark matter deficit in the ultradiffuse galaxy NGC 1052-DF2 (DF2). It is widely accepted that the formation of this unique galaxy can be attributed to the tidal stripping of its host galaxy, NGC 1052.
Zhao-Chen Zhang +2 more
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DDO 68-C: HST Confirms Yet Another Companion of the Isolated Dwarf Galaxy DDO 68
The Astrophysical JournalWe present the results of deep Hubble Space Telescope photometry of the dwarf galaxy DDO 68-C, proposed as possibly associated with the isolated peculiar dwarf DDO 68.
Matteo Correnti +12 more
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Galaxy interactions and strength of nuclear activity [PDF]
Analysis of data in the literature for differential velocities and projected separations of nearby Seyfert galaxies with possible companions shows a clear difference in projected separations between type 1's and type 2's.
Simkin, S. M.
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Dynamics of Galaxy Interactions [PDF]
, 1998 This review briefly and very informally summarizes some of my ongoing research. One unifying theme in my work is the use of computers to bridge the gap between human and astronomical time-scales. Galactic collisions are an example; the dynamics of interacting galaxies can be visualized with numerical simulations.
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Warped Disk Galaxies. II. From the Cosmic Web to the Galactic Warp
The Astrophysical JournalGalactic warps are common in disk galaxies. While often attributed to galaxy–galaxy tides, a nonspherical dark matter halo has also been proposed as a driver of disk warping.
Woong-Bae G. Zee +3 more
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Interacting Radio Galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1971 J. M. Hill, M. S. Longair
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