Recent research baesd on hypothesis of the presence of atom sized BH in the sun shows that BH drives convection in the core of the Sun and mixes its innermost regions, but otherwise causes little change to its outward appearance. The fate of the Sun, on the other hand, changes dramatically. By the age of 7 Gyr, the BH consumes 0.1% of the solar mass. The solar core now cools, causing nuclear reactions to cease.

The results were derived via a simulation of the evolution of a star under the hypothesis that it has a central BH, treating the BH as a point mass at the core and solve the 1D stellar structure equations with modified inner boundary conditions i.e non zero central mass equals to BH.

Although in theory it looks fine, there is the question of whether such BH interventions in stars cause the expected results and at what % of stars does this alteration from standard evolution occurs based on predictions of primordial bh's and whether this matches Observations.

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