Expected abundance patterns from the first generation of stars

The first stars in the Universe (Population III) are thought to be responsible for synthesizing the first heavy elements, thereby creating the chemical conditions from which the second generation of stars has formed. One of the aims of current investigations is to better constrain the Initial Mass Function of Population III stars from the observed abundance patterns of extremely metal poor stars, which is essential to model their influence on cosmic history. We present a set of predictions for the abundance ratios of carbon and europium yields, assuming different types of initial mass function, parametrized by the index , and the upper and lower mass cutoff. We will briefly discuss the parameter space that is consistent with the extremely metal poor stars known so far.