论文标题
早期的太阳能二进制伴侣的案例
The Case for an Early Solar Binary Companion
论文作者
论文摘要
我们表明，在太阳出生簇中的一个相等质量的临时二进制伴侣以$ \ sim 10^3 \的分离为单位； \ Mathrm {\; au} $会增加形成观察到的外羊云对物体和捕获九个行星的人群的可能性。特别是，第九行星捕获的起源的发现将通过相对于孤独的历史的数量级来利用我们的二进制模型。我们的模型预测，LSST可以发现的矮行星过多，其轨道与九行星相似，这可能是由于恒星二进制的捕获而造成的。
We show that an equal-mass, temporary binary companion to the Sun in the solar birth cluster at a separation of $\sim 10^3 \; \mathrm{\; AU}$ would have increased the likelihood of forming the observed population of outer Oort cloud objects and of capturing Planet Nine. In particular, the discovery of a captured origin for Planet Nine would favor our binary model by an order of magnitude relative to a lone stellar history. Our model predicts an overabundance of dwarf planets, discoverable by LSST, with similar orbits to Planet Nine, which would result from capture by the stellar binary.
