Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...294...47w&link_type=abstract
Astronomy and Astrophysics 294, 47-56 (1995)
Astronomy and Astrophysics
Astrophysics
8
Galaxy: Abundances, Evolution, Nucloesynthesis
Scientific paper
We study the chemical evolution of secondary and primary elements in a model which allows for inhomogeneities in the interstellar medium due to incomplete mixing of stellar ejecta, and a star formation localized in time and space. The average abundances are the same as the single value obtained from homogeneous models. The inhomogeneous star formation causes a scatter of the abundances of the ISM. Incomplete mixing has a strong influence on the relation between nitrogen and oxygen, giving rise to flatter N/O-O/H relations, thus mimicking a primary contribution to the nitrogen synthesis. Comparison with observational data from the Galaxy and external galaxies indicates that the probability of star formation is about T=0.1, in accord with the scatter of stellar metallicities which indicates that the degree of chemical inhomogeneity of the interstellar gas is indeed rather small.
Koeppen Joachim
Wilmes M.
No associations
LandOfFree
Chemical evolution in an inhomogeneous interstellar medium. 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 Chemical evolution in an inhomogeneous interstellar medium., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical evolution in an inhomogeneous interstellar medium. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1629086