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Rotation curve of our Galaxy forR>R o

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Abstract

It is shown that the rise of rotation velocities in the outer regions of our Galaxy may be illusive, and is caused by an excessive simplification of the methods of processing the observational data. Taking into consideration the possibility of the radial motions of the gas, we demonstrate that the existing observational data do not conflict with the hypothesis of the flat rotation curve of our Galaxy. The bending of the outer regions of the galactic disk has no significant effect on the observed radial velocities of the gaseous complexes. It is also shown that the wavy form of the rotation curve may be evoked by the spiral density waves in the Galaxy.

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Authors and Affiliations

  1. Tartu Astrophysical Observatory, Toravere, Estonia, USSR

    Urmas Haud

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  1. Urmas Haud
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Haud, U. Rotation curve of our Galaxy forR>R o . Astrophys Space Sci 104, 337–345 (1984). https://doi.org/10.1007/BF00650307

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  • DOI: https://doi.org/10.1007/BF00650307

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