Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-07-07
Astronomy and Astrophysics
Astrophysics
19 pages, 5 figures, to be published in the RevMexAA in October 2008
Scientific paper
We find a new analytical solution for the chemical evolution equations, taking into account the delayed contribution of all low and intermediate mass stars (LIMS) as one representative star that enriches the interstellar medium.This solution is built only for star formation rate proportional to the gas mass in a closed box model. We obtain increasing C/O and N/O ratios with increasing O/H, behavior impossible to match with the Instantaneous Recycling Approximation (IRA). Our results, obtained by two analytical equations, are very similar to those found by numerical models that consider the lifetimes of each star. This delayed model reproduces successfully the evolution of C/O-O/H and Y-O relations in the solar vicinity. This analytical approximation is a useful tool to study the chemical evolution of elements produced by LIMS when a galactic chemical evolutionary code is not available.
Carigi Leticia
Franco Ignacio
No associations
LandOfFree
The delayed contribution of low and intermediate mass stars to chemical galactic enrichment: An analytical approach 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 delayed contribution of low and intermediate mass stars to chemical galactic enrichment: An analytical approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The delayed contribution of low and intermediate mass stars to chemical galactic enrichment: An analytical approach will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-561173