Abstract
If one tries to look at the structure of spiral galaxies with the eyes of an unbiased newcomer, and if one then pages through the Hubble Atlas of Galaxies or Arp’s Atlas of Peculiar Galaxies the first reaction is that these objects must be young,and could hardly have lived over much more than one revolution. Consideration of data on the strong differential rotation that is characteristic for spiral galaxies further strengthens this impression.
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© 1970 I.A.U.
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Oort, J.H. (1970). Survey of Spiral Structure Problems. In: Becker, W., Contopoulos, G. (eds) The Spiral Structure of Our Galaxy. International Astronomical Union / Union Astronomique Internationale, vol 38. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3275-9_1
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DOI: https://doi.org/10.1007/978-94-010-3275-9_1
Publisher Name: Springer, Dordrecht
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