Can modified gravity prevent the gravitational collapse to black hole?

Emilio Santos

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arXiv · 1112.4997

Can modified gravity prevent the gravitational collapse to black hole?

Emilio Santos

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Abstract

It is shown that the theoretical arguments for the unavoidable collapse of massive stars, which are valid within standard general relativity, are not valid in extended gravity. In particular a calculation is reported of neutron stars within a theory obtained from an Einstein-Hilbert action involving a function of $R^{2}-1/2R_{μν}R^{μν}$ added to the Ricci scalar $R$. The calculation suggests that within that theory there are stable neutron stars with arbitrarily high baryon number.

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Emilio Santos. 2011-12-21. Can modified gravity prevent the gravitational collapse to black hole?. https://arxiv.org/abs/1112.4997

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