Past and present metal abundance gradient in the Galactic disc

Details Past and present metal abundance gradient in the Galactic disc Past and present metal abundance gradient in the Galactic disc

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987japa....8..123g&link_type=abstract

(IAU, Meeting on Nucleosynthesis in the Galaxy from the Study of Low-mass Stars, New Delhi, India, Nov. 27, 1985) Journal of Ast

Astronomy and Astrophysics

Astrophysics

54

Abundance, Cosmochemistry, Metallicity, Milky Way Galaxy, Chronology, Galactic Evolution, Hydrogen, Interstellar Matter, Star Clusters, Stellar Evolution, Supergiant Stars

Scientific paper

A critical discussion of some determinations of metal abundance gradient in the galactic disc is presented with an attempt to homogenize the results related to local and large-scale gradients. A new estimation of the palaeogradient in intermediate and old disc population is presented. The gradient is found to depend on galactocentric distance, and to be nearly constant with time during the lifetime of the galactic disc.

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