This is the astro-ph blog of the Theoretical Modelling of Cosmic Structures group (TMoX) at the Max-Planck-Institute for Extraterrestrial Physics. We are an independent Max-Planck Research Group focusing on the various aspects in the formation and evolution of galaxies. Part of our focus is on the formation and evolution of early-type galaxies, super-massive black holes, the formation of the first structures in the universe and the enrichment history of the Universe. We are theoreticians using analytic modelling as well as numerical simulations in our work.

The CosmologyCake blog is dedicated to the discussion of research papers and current developments. We will regularly post interesting papers and comment on them. Feel free to leave your comments as well. We encourage authors of discussed papers to post replies if they wish to. Our aim is to provide a platform to discuss recent astro-ph papers within a wider audience. Please feel free to send papers you would like to be discussed to us at tmoxgroup@googlemail.com.

3 March 2011

On the relative abundance of LiH and LiH+ molecules in the early universe

Authors: Stefano Bovino, Mario Tacconi, Franco A. Gianturco, Daniele Galli, Francesco Palla
full paper:  http://arxiv.org/abs/1102.3812

The authors revisit Li chemistry evolution and perform full
ab-initio computations of reaction rates and cross sections. They find
significant differences with respect to previous works, since, with the
updated data LiH become more aboundant of LiH+ at all redshift.
At z~1, differences with previous works are up to 2 orders of magnitude.
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