Primordial molecules in a model of gravitational collapse.

Details Primordial molecules in a model of gravitational collapse. Primordial molecules in a model of gravitational collapse.

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995crasb.320..619p&link_type=abstract

Comptes Rendus de l'Academie des Sciences, Sér. II, Fasc. b, Tome 320, No. 11, p. 619 - 625

Computer Science

Gravitational Collapse: Molecular Clouds, Early Universe: Nucleosynthesis, Early Universe: Molecules

Scientific paper

It is now well known that a primordial chemistry, involving light elements produced during the nucleosynthesis period, might develop during the hydrogen post-recombination era. In particular, molecular ions and primordial molecules such as H2, HD and LiH will be produced. The authors summarize this primordial chemistry after the recombination epoch, and then present a simple gravitational collapse model of a cloud (M = 109Msun) including molecules. As a result, abundances are seen to be modified during the collapse where in particular the HD abundance is considerably lowered while H2 and LiH productions are correspondingly enhanced.

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