Chemical Evolution of the System of Galactic Planetary Nebulae

Details Chemical Evolution of the System of Galactic Planetary Nebulae Chemical Evolution of the System of Galactic Planetary Nebulae

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ap.....45..370l&link_type=abstract

Astrophysics (English translation of Astrofizika), v. 45, Issue 3, p. 370-379 (2002).

Astronomy and Astrophysics

Astrophysics

Ism Planetary Nebulae - Planetary Nebulae Evolution

Scientific paper

The problem of the chemical evolution of the system of Galactic planetary nebulae, starting with the early stage of development of the Galaxy, is investigated. The radial and vertical gradients of C, N, O, Ne, Ar, Cl, and S abundances are determined for different ages of the precursor stars of the nebulae. A statistically significant age dependence of the gradients is derived.

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