The chemical evolution of the Milky Way disk

Details The chemical evolution of the Milky Way disk The chemical evolution of the Milky Way disk

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997nupha.621..558p&link_type=abstract

Nuclear Physics A, v. 621, p. 558-565.

Physics

Nuclear Physics

1

Scientific paper

The chemical evolution of the disk of our Galaxy is studied with numerical models assuming infall and a radially varying star formation rate (SFR). We propose a model with a minimal set of physically plausible assumptions which satisfies the main observational constraints of the disk, including those of the solar neighborhood. Among them, the recent evidence for a negligible oxygen gradient in the outer Galaxy constrains severely some of the suggested SFR. We find that the resulting deuterium gradients are very sensitive to the past history of the disk; when detected by future experiments (like ISO and FUSE-LYMAN) they could be used to discriminate between some of the proposed histories. Finally, in the framework of our model we study the evolution of the carbon and oxygen isotopes in the Galaxy using the most recent stellar yields. We find that the evolution of 13C and 17O is relatively well understood (the former requiring some ``primary'' contribution, presumably from ``hot-bottom burning'' in intermediate mass stars), while a major puzzle still remains with the evolution of 18O.

Affiliated with

Also associated with

No associations

Rating

The chemical evolution of the Milky Way disk does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The chemical evolution of the Milky Way disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The chemical evolution of the Milky Way disk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1606947