2002/02/18 by D. Galli, Daniele Galli, F. Palla +1 · 2 citations
Physics and Astronomy · #Astrochemistry #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Atmospheric chemistry #Chemical kinetics #Chemical reaction #Deuterium #Galaxies: Formation, Evolution, Phenomena #Metric expansion of space #Order (exchange) #Universe #astro-ph
paper · pdf · doi:10.1016/s0032-0633(02)00083-1
22 pages, 10 figures, LaTeX. Earth and Planetary Sciences, in press
arxiv created 2002/02/18 · openalex publication_date 2002/10/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We review and update some aspects of deuterium chemistry in the post-recombination Universe with particular emphasis on the formation and destruction of HD. We examine in detail the available theoretical and experimental data for the leading reactions of deuterium chemistry and we highlight the areas where improvements in the determination of rate coefficients are necessary to reduce the remaining uncertainties. We discuss the cooling properties of HD and the modifications to the standard cooling function introduced by the presence of the cosmological radiation field. Finally, we consider the effects of deuterium chemistry on the dynamical collapse of primordial clouds in a simple ``top-hat'' scenario, and we speculate on the minimum mass a cloud must have in order to be able to cool in a Hubble time.