论文标题
没有更多的差距：非核能量填充黑洞质量间隙的机制
A Gap No More: Mechanism for Non-Nuclear Energy to Fill in the Black Hole Mass Gap
论文作者
论文摘要
标准恒星演化模型预测，在$ 50-140 m_ \ odot $范围内的黑洞不应直接来自恒星进化。出现这种差距是因为预计具有100至240 $ m_ \ odot $的质量的星星会经历一对不稳定性超新星，而没有残留物或脉冲对不稳定性超新星，并留下比最初的恒星质量小得多的残余物。但是，在此质量范围内的Ligo/Wigo协作发现了黑洞。在先前的工作（Arxiv：2010.00254）中，我们使用了恒星进化代码MESA来表明，添加非核能量（例如，从暗物质的an灭中）可以改变180美元$ M_ \ odot $ star的演变，以便可以从孤立的星星中产生观察到的黑孔。在本文中，我们将此分析扩展到其他质量的恒星，发现足够量的非核能量可以允许任何恒星避免配对的不稳定性，并且可以产生与初始恒星质量相当的质量的黑洞。此外，我们产生了从该机制产生的黑洞初始质量功能类型的示例。这些说明性的例子表明，在星星中添加非核能量提供了一种完全缩小质量差距的方法。
Standard stellar evolution models predict that black holes in the range of approximately $50 - 140 M_\odot$ should not exist directly from stellar evolution. This gap appears because stars with masses between 100 and 240 $M_\odot$ are expected to undergo a pair instability supernova and leave behind no remnant, or a pulsational pair instability supernova and leave behind a remnant much smaller than their initial stellar mass. However, black holes have been discovered by the LIGO/Virgo collaboration within this mass range. In previous work (arXiv:2010.00254), we used the stellar evolution code MESA to show that the addition of non-nuclear energy (such as from annihilation of dark matter) could alter the evolution of a 180 $M_\odot$ star so that the observed black holes could be produced from isolated stars. In this paper, we extend this analysis to stars of other masses, and find that sufficient amounts of non-nuclear energy can allow any star to avoid pair instability, and could produce a black hole of mass comparable to the initial stellar mass. In addition, we produce examples of the type of black hole initial mass function that can be produced from this mechanism. These illustrative examples suggest that adding non-nuclear energy to stars offers a way to fully close the mass gap.
