Journal ArticleDOI
The pattern speed in the SB0 galaxy NGC 936
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This article is published in The Astronomical Journal.The article was published on 1987-05-01. It has received 51 citations till now. The article focuses on the topics: Peculiar velocity & Radial velocity.read more
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Secular Evolution and the Formation of Pseudobulges in Disk Galaxies
TL;DR: In the far future, evolution will mostly be secular, the slow rearrangement of energy and mass that results from interactions involving collective phenomena such as bars, oval disks, spiral structure, and triaxial dark halos as mentioned in this paper.
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Constraints from Dynamical Friction on the Dark Matter Content of Barred Galaxies
TL;DR: In this paper, it was shown that bars in galaxy models having halos of moderate density and a variety of velocity distributions all experience a strong drag from dynamical friction unless the halo has large angular momentum in the same sense as the disk.
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Dynamics of Barred Galaxies
J. A. Sellwood,Althea Wilkinson +1 more
TL;DR: In this article, the authors review the main problems presented by these complicated dynamical systems and summarize the effort so far made towards their solution, emphasizing results which appear secure, and conclude that the observed motions are consistent with material within the bar streaming along highly elongated orbits aligned with the rotating major axis.
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Measurement of fast bars in a sample of early‐type barred galaxies
TL;DR: In this paper, surface photometry and stellar kinematics of a sample of five SB0 galaxies: ESO 139-G009, IC 874, NGC 1308, and NGC 1440, were measured using the Tremaine-Weinberg method.
Journal ArticleDOI
Dynamical Properties of Tidally Induced Galactic Bars
Toshinobu Miwa,Masafumi Noguchi +1 more
TL;DR: In this article, a series of N-body models of tidal encounters between a disk galaxy and a perturbing galaxy were simulated to investigate the dynamical properties of tidally-induced galactic bars.