论文标题
高度不对称合并中的质量间隙对象的形成
Formation of mass gap objects in highly asymmetric mergers
论文作者
论文摘要
Ligo/处女座合作（LVC）最近报道了GW190814的检测，合并为$ 23^{+1.0} _ { - 0.9} 〜M _ {\ odot} $ prientar Black Hole（BH），以及A $ 2.6^{+0.08} _ {+0.08} _} $ _ { - 0.08} $ _}次要的质量属于质量差距制度，这是指在2-5 $ m _ {\ odot} $的质量范围内的紧凑物体稀缺。 GW190814形成的第一个线索在于，主要BH是非常庞大的BH。我们建议次生以中子恒星（NS）出生，其中大量的超新星弹出质量由于存在大量的BH伴侣而与二元构造保持与二元的结合。绑定的质量形成一个电振盘，其积聚在NS上产生了一个质量间隙对象。在这种情况下，Ligo/处女座仅检测具有极高质量比的二进制合并中的质量差距对象。我们还预测了此类不对称合并中次级质量与主要质量之间的相关性。我们的模型可以通过LVC的第三次观察运行中的未来数据进行测试。
The LIGO/Virgo Collaboration (LVC) recently reported the detection of GW190814, a merger of a $23^{+1.0}_{-0.9}~M_{\odot}$ primary black hole (BH), and a $2.6^{+0.08}_{-0.08}~M_{\odot}$ secondary. The secondary's mass falls into the mass-gap regime, which refers to the scarcity of compact objects in the mass range of 2-5 $M_{\odot}$. The first clue to the formation of the GW190814 lies in the fact that the primary is a very massive BH. We suggest that the secondary was born as a neutron star (NS) where a significant amount of the supernova ejecta mass from its formation remained bound to the binary due to the presence of the massive BH companion. The bound mass forms a circumbinary accretion disk, and its accretion onto the NS created a mass-gap object. In this scenario, LIGO/Virgo will only detect mass-gap objects in binary mergers with an extreme mass ratio. We also predict a correlation between the mass of the secondary and the mass of the primary in such asymmetric mergers. Our model can be tested with future data from the LVC's third-observing run.
