Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..59..413c&link_type=abstract
Astrophysics and Space Science, vol. 59, no. 2, Dec. 1978, p. 413-429. Research supported by the Consiglio Nazionale delle Rice
Astronomy and Astrophysics
Astrophysics
7
Abundance, Astronomical Models, Chemical Evolution, Galactic Evolution, Nuclear Fusion, Elliptical Galaxies, Galactic Structure, Gravitational Effects, Interstellar Gas, Mass Distribution, Spiral Galaxies, Stellar Evolution
Scientific paper
Results provided by analytical models for the chemical evolution of two-component (spheroidal and disk) galaxies based on the instantaneous recycling approximation are compared with numerical results obtained by discarding the cited approximation. The assumptions and general equations used in the calculations are discussed, and the method adopted for the numerical computation is briefly outlined. Some numerical results are reported and compared with the corresponding analytical results for the solar neighborhood and for other galaxies. It is concluded that the analytical models are a zeroth-order approximation for describing the chemical evolution of both the solar neighborhood and other galaxies, that the numerical calculations constitute a first-order approximation, and that the effect of the latter is to lower the gas mass fraction and metallicity by about 25 percent to 50 percent with respect to the corresponding analytical values.
No associations
LandOfFree
Chemical evolution of two-component galaxies. II - Numerical computations 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 of two-component galaxies. II - Numerical computations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical evolution of two-component galaxies. II - Numerical computations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-886015