COOLING BY GRAINS AND H-2 IN COLLAPSING CLOUDS OF DIFFERENT METALLICITIES

Authors
ROSSI SCF BARBUY B DESFORETS GP BENEVIDESSOARES P
Citation
Scf. Rossi et al., COOLING BY GRAINS AND H-2 IN COLLAPSING CLOUDS OF DIFFERENT METALLICITIES, Astrophysics and space science, 213(1), 1994, pp. 113-119
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
213
Issue
1
Year of publication
1994
Pages
113 - 119
Database
ISI
SICI code
0004-640X(1994)213:1<113:CBGAHI>2.0.ZU;2-L
Abstract
Computations of the cooling by grains and by H-2 molecules are carried out and applied to different stages of cloud collapse during the isot hermal phase. Clouds of 10(6) M. of different metallicites are conside red, with the purpose of obtaining a relation between metallicity and importance of grain cooling relative to H-2 cooling. Our results show that grain cooling dominates over H-2 cooling for metallicities [M/H] > -4.0, in the absence of external UV field.