Chemistry and cooling in metal-free and metal-poor gas
Aug, 20075 pages
Part of Proceedings, International Conference on First Stars III : Santa Fe, USA, July 15-20, 2007, 25-29
Published in:
- AIP Conf.Proc. 990 (2008) 1, 25-29
Contribution to:
- First Stars III, 25-29
- Published: Apr 8, 2008
e-Print:
- 0708.3086 [astro-ph]
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Abstract: (AIP)
I summarize four of the most important areas of uncertainty in the study of the chemistry and cooling of gas with zero or very low metallicity. These are: i) the importance and effects of HD cooling in primordial gas; ii) the importance of metal‐line and dust cooling in low metallicity gas; iii) the impact of the large uncertainties that exist in the rate coefficients of several key reactions involved in the formation of H2; and iv) the effectiveness of grain surface chemistry at high redshifts.- 97.20.Wt
- 98.38.Bn
- 98.54.Kt
- surface chemistry
- cooling
- hydrodynamics
- star formation
- cosmology
- interstellar molecular clouds
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