论文标题
多星形形成的球体视图
The SPHERE view of multiple star formation
论文作者
论文摘要
尽管大部分恒星都在多个系统中，但我们对导致这些系统形成的过程的理解仍然不足。鉴于较大的理论不确定性，观察起着基本作用。在这里，我们讨论了高对比度成像的贡献，更具体地说是在ESO中非常大的望远镜的球形仪器的贡献。 Sphere很好地补充了其他技术，特别是那些利用Gaia和Alma的技术，可以通过分离来检测和表征分布峰附近的系统，并允许捕获磁盘中二进制形成的快照，这些二进制形成对于理解磁盘碎片而言是无价的。
While a large fraction of the stars are in multiple systems, our understanding of the processes leading to the formation of these systems is still inadequate. Given the large theoretical uncertainties, observation plays a basic role. Here we discuss the contribution of high contrast imaging, and more specifically of the SPHERE instrument at the ESO Very Large Telescope, in this area. SPHERE nicely complements other techniques - in particular those exploiting Gaia and ALMA - in detecting and characterising systems near the peak of the distribution with separation and allows to capture snapshots of binary formation within disks that are invaluable for the understanding of disk fragmentation.
