Statistical properties of star populations - Evidence for active phases in the evolution of the galaxy

Details Statistical properties of star populations - Evidence for active phases in the evolution of the galaxy Statistical properties of star populations - Evidence for active phases in the evolution of the galaxy

Apr 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977sval....3...86s&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 3, Apr. 1977, p. 165-169.) Soviet Astronomy Letters, vol. 3, Mar.-Apr. 1977, p. 86-88.

Astronomy and Astrophysics

Astronomy

1

Galactic Evolution, Milky Way Galaxy, Star Distribution, Statistical Analysis, Stellar Motions, Abundance, Angular Momentum, Eccentric Orbits, Globular Clusters, Metals, Stellar Evolution

Scientific paper

Statistical analysis shows that the distributions of halo stars in orbit eccentricity and angular momentum have two gaps each. This provides evidence of arrests in star formation during the collapse of the early Galaxy. Comparison of these gaps with the gaps in the distribution of stars and globular clusters in metal abundance leads to the conclusion that there were bursts of activity in the early evolution of the Galaxy, during which heavy elements were produced and star formation was inhibited.

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