Mark Northeast

University of Central Lancashire

Poster Title: Testing Galactic Chemical Evolution Modeling of Spheroidal Galaxies

Abstract: Using Galactic Chemical Evolution (GCE) models it may be possible to infer the SFH of galaxies, to produce ultimately a more precise and believable method of reproducing observable galaxies than by a single burst for star formation. We have a code to model GCE in a single zone. This software models chemical abundances and the resulting stellar spectral indices, to be compared to spectral indices observed in the light from galaxies. Several variables are examined, such as those relating to star formation rate (i.e. Salpeter, with a variable efficiency as a coefficient) and the time where two major changes may have occurred. This code allows for gas inflow during the evolution of the galaxy. The code currently predicts line strengths and colours. The latest model fits are shown for several galaxies. The advantages and limitations of these models are discussed.



Link to poster: N/A