Scalar-Tensor Gravitation and the Cosmic Fireball
Abstract
It has been shown that under conventional general relativity the cosmic fireball should convert 26- 28 per cent of the hydrogen to helium. Departure from an ideal isotropic and uniform universe should only increase the amount of helium formation. The contribution from the scalar field energy of the scalar- tensor type of gravitation theory can lead to the fireball's expanding so rapidly that virtually no helium is formed. If the present mass density of the Universe is in excess of 2 X 10-29 g cm3, corresponding to a closed space, zero helium production would be expected under the scalar-tensor theory. Thus a de- termination of the helium content of Population II stars could provide a test for both theories of gravita- tion. INTRODUCTIO
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1968
- DOI:
- 10.1086/149519
- Bibcode:
- 1968ApJ...152....1D