Primordial black hole evolution in tensor-scalar cosmology

Details Primordial black hole evolution in tensor-scalar cosmology Primordial black hole evolution in tensor-scalar cosmology

1999-05-24

arxiv.org/abs/astro-ph/9905303v2

Phys.Rev.Lett. 83 (1999) 2699-2702

Astronomy and Astrophysics

Astrophysics

4 pages, revtex

Scientific paper

10.1103/PhysRevLett.83.2699

A perturbative analysis shows that black holes do not remember the value of the scalar field $\phi$ at the time they formed if $\phi$ changes in tensor-scalar cosmology. Moreover, even when the black hole mass in the Einstein frame is approximately unaffected by the changing of $\phi$, in the Jordan-Fierz frame the mass increases. This mass increase requires a reanalysis of the evaporation of primordial black holes in tensor-scalar cosmology. It also implies that there could have been a significant magnification of the (Jordan-Fierz frame) mass of primordial black holes.

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