The N/O evolution on galaxies:the role played by the star formation history

Details The N/O evolution on galaxies:the role played by the star formation history The N/O evolution on galaxies:the role played by the star formation history

2007-01-24

arxiv.org/abs/astro-ph/0701691v1

Astronomy and Astrophysics

Astrophysics

7 pages, 5 figures. contribution to the conference Metal Rich Universe, Eds. G. Israelian & G. Meynet, Cambridge University Pr

Scientific paper

We study the evolution of nitrogen resulting from a set of spiral and irregular galaxy models computed for a large number of input mass radial distributions and with various star formation efficiencies. We show that our models produce a nitrogen abundance evolution in good agreement with the observational data. In particular, low N/O values for high-redshift objects, such as those obtained for Damped Lyman Alpha galaxies can be obtained with our models simultaneously to higher and constant values of N/O as those observed for irregular and dwarf galaxies, at the same low oxygen abundances $\rm 12+log(O/H) \sim 7$ dex. The differences in the star formation histories of the regions and galaxies modeled are essential to reproduce the observational data in the N/O-O/H plane.

Affiliated with

Also associated with

No associations

Rating

The N/O evolution on galaxies:the role played by the star formation history 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 N/O evolution on galaxies:the role played by the star formation history, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The N/O evolution on galaxies:the role played by the star formation history will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-602982