论文标题
黑洞还是GARVASTAR？ GW190521案例
Black hole or Gravastar? The GW190521 case
论文作者
论文摘要
具有很强重力的宇宙学对象的存在是对爱因斯坦方程的普遍相对论的预测。这些物体称为黑洞，最近我们对它们进行了第一次观察。但是，黑洞形成的理论有一些缺点。为了避免这种情况，一些科学家建议存在Grastars（引力真空星），这是一种替代性恒星模型，似乎可以解决黑洞理论的问题。在这项工作中，我们使用广泛的文献比较黑洞和静态，并强调了与当前的宇宙学观察一致的静态的特性。同样，我们提出了静态效应的解释性的解决方案，并且可能解释了从重力信号GW190521中观察到的紧凑型物体的质量，因为在形成了at Rampastar时，没有质量限制。
The existence of cosmological compact objects with very strong gravity is a prediction of General Relativity and an exact solution of the Einstein equations. These objects are called black holes and recently we had the first observations of them. However, the theory of black hole formation has some disadvantages. In order to avoid these, some scientists suggest the existence of gravastars (gravitation vacuum stars), an alternative stellar model which seems to solve the problems of the black hole theory. In this work we compare black holes and gravastars using a wide range of the literature and we emphasize the properties of gravastars, which are consistent with the current cosmological observations. Also, we propose gravastars as the solution of the "pair-instability" effect and a possible explanation for the observed masses of the compact objects, before the collapse, from the gravitational signal GW190521, since in the formation of a gravastar there aren't mass restrictions.
