New Structures in Galactic Disks: Predictions and Discoveries

A.M. Fridman, O.V. Khoruzhii, V.A. Minin, E.V. Polyachenko, V.L. Polyachenko, O.K. Sil'chenko, A.V. Zasov, V.L. Afanasiev, S.N. Dodonov, A.V. Moiseev, J. Boulesteix, J. Knapen

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Our main goal is to review: 1) some physical mechanisms which form the observed structures in galactic disks; 2) the discovery of new galactic structures predicted earlier. Specifically in the first part of the paper we discuss some questions associated with spiral structure. The second part is devoted to the prediction and discovery of giant vortices in gaseous disks of the grand design spiral galaxies using method of reconstruction of the full three-component velocity field from the observed line-of-sight velocity field. In the third part, we give some arguments in favour of existence of the slow bars in the grand design spiral galaxies.
    Original languageEnglish
    Title of host publicationIn: Galaxy Disks and Disk Galaxies - ASP Conf Series 230
    PublisherAstronomical Society of the Pacific
    ISBN (Print)1-58381-063-3
    Publication statusPublished - 2001


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