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Barred Spirals and Formation of Spiral Arms by Galaxies
Nature, 1965SO far the formation of spiral arms, especially regular arms, has not been satisfactorily explained. The investigation of this phenomenon can be facilitated by an analysis of similar, but more peculiar, objects—barred spirals. A characteristic barred galaxy has a straight bar, which at the ends transforms abruptly into spiral arms.
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A new model for barred spiral galaxies
Astrophysics and Space Science, 1983Computer simulations are used to demonstrate that normal spiral galaxies with symmetrically warped arms can appear to have bar and bar-within-ring structures when viewed from appropriate position angles.
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On the theory of barred and magellanic spiral galaxies
Bulletin astronomique, 1968We investigate the properties of stellar orbits in barred spiral galaxies to explain 1) the ring structures encircling the bars of SB(r) galaxies and 2) the unusual internal velocity field in the Magellanic barred Spiral NGC4027.
Freeman, Ken C., Harrington, R.
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Multiple patterns in spiral and barred galaxies
Publications of the Astronomical Society of the Pacific, 1993Our ability to locate resonances of spiral patterns in galaxies is severely limited if spirals are short-lived and if many patterns co-exist in the same galaxy. Theoreticians are currently divided on the basic question of whether spiral patterns are long-lived, but I argue that multiple, short-lived pattersn are to be expected. Bars, on the other hadn,
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A repeating fast radio burst source localized to a nearby spiral galaxy
Nature, 2020Benito Marcote +2 more
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Cosmological simulations of galaxy formation
Nature Reviews Physics, 2020Mark Vogelsberger +2 more
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The Galaxy in Context: Structural, Kinematic, and Integrated Properties
Annual Review of Astronomy and Astrophysics, 2016Joss Bland-Hawthorn, Ortwin Gerhard
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Cosmology and fundamental physics with the Euclid satellite
Living Reviews in Relativity, 2018Luca Amendola +2 more
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Lung cancer LDCT screening and mortality reduction — evidence, pitfalls and future perspectives
Nature Reviews Clinical Oncology, 2020Matthijs Oudkerk +2 more
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