Star formation at very low metallicity. II: On the insignificance of metal-line cooling during the early stages of gravitational collapse

A. -K. Jappsen, S. C. O. Glover, R. S. Klessen +1

We study the influence of low levels of metal enrichment on the cooling and collapse of ionized gas in small protogalactic halos using three-dimensional, smoothed particle hydrodyn…