Abundance gradients: tracing the chemical properties of the disk

Details Abundance gradients: tracing the chemical properties of the disk Abundance gradients: tracing the chemical properties of the disk

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hia....15..790c&link_type=abstract

Highlights of Astronomy, Volume 15, p. 790-790

Astronomy and Astrophysics

Astronomy

Galaxy: Abundances, Galaxy: Disk, Galaxy: Evolution

Scientific paper

Abundance gradients are key parameters to constrain the chemical evolution of the galactic disk. In this review recent determinations for the radial gradient are described, including its slope as derived from different objects such as planetary nebulae, HII regions, cepheids, or B stars, and for different elements. Inner and outer limits for the radial gradient, as well as its time evolution, both related to the chemical evolution of the Galaxy, are also described. The possible existence of azimuthal and vertical gradients is also discussed.

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