Black hole formation due to collapsing dark matter in a presence of dark energy in the brane-world s

In the last three to four decades, various programs have been studied in order to investigate the final fate of gravitational collapse of massive astronomical objects. In the theoretical context, Black Holes (BHs) are the consequence of final stage of the gravitational collapse. In this work, we investigated the gravitational collapse process of a spherically symmetric star constituted of dark matter (DM), ρMρM, and Dark Energy (DE), ρρ in the context of the brane-world scenario. In our model, we discussed the anisotropy of the pressure in a fluid with Equation of State:

(EoS) pt=kρpt=kρ and pr=lρpr=lρ, (l+2k<−1)(l+2k<−1).

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Various cases of gravitational collapse are briefly discussed and it is found that BH can be formed by the gravitational collapse in brane-world regime while in some cases there is only a naked singularity at their end state.

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