论文标题
在外太阳系中搜索一个黑洞
Searching for a Black Hole in the Outer Solar System
论文作者
论文摘要
有一个新颖的对象（“行星9”）的提示，其质量为$ 5-10 $ $ m_ \ oplus $在外部太阳系中，距离为500 au。如果它是一个相对传统的星球，则可以在望远镜搜索中找到。另外，已经提出该尸体可能是原始黑洞（PBH）。在这种情况下，常规搜索将失败。一种可能的替代方法是使用突破性星形项目中所设想的小型飞船使用小型激光的航天器探测该对象的重力场。随着订单$ .001〜C $的速度，这种航天器可以在发射后大约十年到达9号行星，如果他们可以将正时测量结果准确地报告到$ 10^{ - 5} $秒，可以发现它。
There are hints of a novel object ("Planet 9") with a mass $5-10$ $M_\oplus$ in the outer Solar System, at a distance of order 500 AU. If it is a relatively conventional planet, it can be found in telescopic searches. Alternatively, it has been suggested that this body might be a primordial black hole (PBH). In that case, conventional searches will fail. A possible alternative is to probe the gravitational field of this object using small, laser-launched spacecraft, like the ones envisioned in the Breakthrough Starshot project. With a velocity of order $.001~c$, such spacecraft can reach Planet 9 roughly a decade after launch and can discover it if they can report timing measurements accurate to $10^{-5}$ seconds back to Earth.
