On the evolution of the disk of our Galaxy

Details On the evolution of the disk of our Galaxy On the evolution of the disk of our Galaxy

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....55..159b&link_type=abstract

Astronomy and Astrophysics, vol. 55, no. 1, Feb. 1977, p. 159-161. Deutsche Forschungsgemeinschaft

Astronomy and Astrophysics

Astrophysics

1

Chemical Evolution, Disks (Shapes), Galactic Evolution, Galactic Structure, Heavy Elements, Abundance, Brightness, Cosmology, Helium, Luminous Intensity

Scientific paper

Two aspects of the history of our Galaxy as derived from model calculations are presented. First, the scale length of the exponential surface-brightness distribution is increasing with time. If this is true generally for disk galaxies, it affects derivations of cosmological parameters. Second, the evolution of the enrichment in heavy elements and helium in the gas and young stars is described.

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