论文标题
古典OBE明星作为苏佩尔诺诺娃逃亡者：确认二进制起源
Classical OBe Stars as Post-Supernova Runaways: Confirming Binary Origins
论文作者
论文摘要
大型二进制文件在从引力波天文学到恒星进化的田野中起着重要作用。我们提供了几条证据，表明小麦芽岩（SMC）中的经典OBE恒星从大型二进制中的质量和角动量转移得出的快速旋转，这预测随后的超新星通常应该将OBE恒星弹入田野。我们发现（1）OBE恒星的场频率比OB恒星更高。 （2）我们恒星恒星距离的累积分布函数（CDF）表明，OBE恒星确实比相应光谱类型的普通OB恒星更为孤立。 （3）OBE星的CDF接近高质量X射线二进制（HMXB）的CDF，已确认为Supernova后对象； （4）OE恒星与恒星一样与恒星分离，这意味着它们的最终质量相对独立于其初始质量，这与主要的质量转移一致。最后，我们还发现超巨星恒星的空间分布与经典OBE恒星的空间分布不同，这与负责其发射线光谱的不同机制一致。
Massive binaries play an important role in fields ranging from gravitational wave astronomy to stellar evolution. We provide several lines of evidence that classical OBe stars in the Small Magellanic Cloud (SMC) obtain their rapid rotation from mass and angular momentum transfer in massive binaries, which predicts that the subsequent supernovae should often eject OBe stars into the field. We find that (1) OBe stars have a higher field frequency than OB stars; (2) our cumulative distribution function (CDF) of stellar distances from O stars shows that OBe stars are indeed much more isolated than ordinary OB stars of corresponding spectral types; (3) the CDFs of OBe stars approach that of high-mass X-ray binaries (HMXBs), which are confirmed post-supernova objects; and (4) Oe stars are as isolated from clusters as Be stars, implying that their final masses are relatively independent of their initial masses, consistent with major mass transfer. Lastly, we also find that the spatial distribution of supergiant OBe stars differs from that of classical OBe stars, consistent with the different mechanism responsible for their emission-line spectra.
