论文标题
$δ$ Scorpii的大规模行为从2000- 2018年开始
The Large Scale Behaviour in the Disk of $δ$ Scorpii from 2000-2018
论文作者
论文摘要
我们使用3维的蒙特卡洛辐射传输代码HDUST对$δ$ SCO的双磁盘进行建模，以量化磁盘的大规模变化到2000年至2018年，并查看这些变化是否可以归因于二级恒星在整个Orbit中影响磁盘。我们通过将模拟观测值与实际H $ \rmα$光谱和V波段光度观测值匹配来确定我们的最佳拟合模型。我们的建模结果证实了先前的发现，即$δ$ SCO的磁盘在本世纪初正在形成。我们还发现，当同伴在Apastron时，磁盘耗散的时期，以及在2011年Periastron之前的2009年至2011年之间的磁盘显着增长。由于2011年以后的磁盘的稳态性质，很难说所见的变化是否是由于Binary Compansion近距离通过的影响。
We model the circumstellar disk of $δ$ Sco using the 3-dimensional Monte Carlo radiative transfer code HDUST in order to quantify the large scale changes in the disk through the years 2000 to 2018, and to see if these changes can be attributed to the secondary star affecting the disk throughout its orbit. We determine our best-fitting models through matching simulated observations to actual H$\rm α$ spectroscopy and V-band photometric observations. Our modelling results confirm previous findings that the disk of $δ$ Sco was forming early in the century. We also find a period of disk dissipation when the companion is at apastron, as well as a significant growth of the disk between 2009 and 2011, prior to the periastron of 2011. Due to the steady-state nature of the disk after 2011, it is difficult to say whether the variations seen are due to the effect of the close passage of the binary companion.
