We consider gravitational collapse in the recently proposed 4D limit of Einstein–Gauss–Bonnet gravity. We show that for collapse of a sphere made of homogeneous dust the process is qualitatively similar to the case of pure Einstein’s gravity. The singularity forms as the endstate of collapse and it is trapped behind the horizon at all times. However, and differently from Einstein’s theory, as a consequence of the Gauss–Bonnet term, the collapsing cloud reaches the singularity with zero velocity, and the time of formation of the singularity is delayed with respect to the pure Einstein case.

中文翻译：

---

4D爱因斯坦-高斯-引擎盖引力引起的粉尘坍塌

在最近提出的爱因斯坦-高斯-贝内特引力的4D极限中，我们考虑了引力坍塌。我们表明，对于由均质粉尘制成的球体的坍塌，该过程在质量上与纯爱因斯坦引力的情况相似。奇点形成为崩溃的最终状态，并且始终被困在地平线之后。但是，与爱因斯坦的理论不同，由于高斯-邦涅特项的存在，坍缩的云以零速度达到奇点，并且相对于纯爱因斯坦情况，奇点的形成时间被延迟了。