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Astron. Astrophys. 355, 929-948 (2000)

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On radial gas flows, the Galactic Bar and chemical evolution in the Galactic Disc

L. Portinari and C. Chiosi

Department of Astronomy, University of Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy (portinari, chiosi@pd.astro.it)

Received 24 August 1999 / Accepted 3 January 2000


We develop a numerical chemical model allowing for radial flows of gas, with the aim to analyse the possible role of gas flows in the chemical evolution of the Galactic Disc. The dynamical effects of the Galactic Bar on the radial gas profile of the Disc are especially addressed.

Key words: Galaxy: abundances – Galaxy: evolution – Galaxy: general – Galaxy: structure

Send offprint requests to: L. Portinari

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© European Southern Observatory (ESO) 2000

Online publication: March 21, 2000