
TY  - JOUR
A1  - Tissera, Patricia B. 
A1  - Scannapieco, Cecilia 
T1  - Studying Galactic Chemical Properties by using Cosmological Numerical&#160;Simulations
JF  - Publications of the Astronomical Society of Australia
JO  - Publ. Astron. Soc.  Aust.
Y1  - 2004
VL  - 21
IS  - 2
SP  - 192
EP  - 196
KW  - Galaxy: dynamical and chemical evolution &#8212; methods: N-body simulations
UR  - https://doi.org/10.1071/AS04006 
N2  - We developed a chemical code within GADGET2 which allows the description of the enrichment of the Universe as a function of redshift, taking into account detailed metal production by supernovae Ia and II, and metal-dependent cooling. This is the first numerical code that includes both chemical production and metal-dependent cooling in a cosmological context. By analysing the cosmic star formation rate, we found that the effects of considering a metal-dependent cooling are important, principally, for z &#8804; 3. In simulations where primordial cooling functions are used, the comoving star formation rate could be up to 20%; lower than those obtained in runs with metal-dependent cooling functions. Within galaxy-like objects, the presence of chemical elements changes the star-formation rates and, consequently, the chemical production and patterns of stars. However, owing to non-linear evolution of the structure, the effects depend on the evolutionary history path of each galaxy-like object. 
ER  -

