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Standard stellar evolution models predict that black holes in the range ofapproximately $50 - 140 M_\odot$ should not exist directly from stellarevolution. This gap appears because stars with masses between 100 and 240$M_\odot$ are expected to undergo a pair instability supernova and leave behindno remnant, or a pulsational pair instability supernova and leave behind aremnant much smaller than their initial stellar mass. However, black holes havebeen discovered by the LIGO/Virgo collaboration within this mass range. Inprevious work (arXiv:2010.00254), we used the stellar evolution code MESA toshow that the addition of non-nuclear energy (such as from annihilation of darkmatter) could alter the evolution of a 180 $M_\odot$ star so that the observedblack holes could be produced from isolated stars. In this paper, we extendthis analysis to stars of other masses, and find that sufficient amounts ofnon-nuclear energy can allow any star to avoid pair instability, and couldproduce a black hole of mass comparable to the initial stellar mass. Inaddition, we produce examples of the type of black hole initial mass functionthat can be produced from this mechanism. These illustrative examples suggestthat adding non-nuclear energy to stars offers a way to fully close the massgap.

A Gap No More: Mechanism for Non-Nuclear Energy to Fill in the Black Hole Mass Gap