Cooling by grains and H2 in collapsing clouds of different metallicities |
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| Authors: | S. C. F. Rossi B. Barbuy G. Pineau Des Forêts P. Benevides-Soares |
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| Affiliation: | (1) Departamento de Astronomia, IAG, Universidade de São Paulo, São Paulo, Brazil;(2) Observatoire de Paris-Meudon, Meudon, France;(3) Departemento de Astronomia, IAG, Universidade de São Paulo, São Paulo, Brazil |
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| Abstract: | Computations of the cooling by grains and by H2 molecules are carried out and applied to different stages of cloud collapse during the isothermal phase. Clouds of 106M of different metallicites are considered, with the purpose of obtaining a relation between metallicity and importance of grain cooling relative to H2 cooling. Our results show that grain cooling dominates over H2 cooling for metallicities [M/H] > -4.0, in the absence of external UV field. |
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