论文标题
WR140的光学测定法作为2016年Periastron通道期间形成的灰尘
Optical Photometry of WR140 as the Dust Formed During the 2016 Periastron Passage
论文作者
论文摘要
碰撞的风二进制WR140在每个Periastron通道中都会产生灰尘。尽管红外光曲线非常可重复，但光学时间序列光度法中的每个循环都有明显的变化。在Periastron之后的阶段中，光曲线中存在光倾角，这些倾角是由视线中产生的灰尘中的局部团块引起的。我们报告了2016年Periastron事件后美国可变星观察家协会（AAVSO）记录的B和V波段光曲线，并简要讨论了与尘埃生产的几何模型的比较，以推断出这些特征可能是由新的防尘壳中的局部粉尘团引起的。
The colliding wind binary WR140 produces dust in its shocked gas every periastron passage. While the infrared light curve is very repeatable, there are noticeable changes every cycle in the optical time-series photometry. In the phases following periastron, there are optical dips in the light curve that were postulated to be caused by localized clumps in the dust produced in our line of sight. We report on the B and V-band light curves that were recorded by the American Association of Variable Star Observers (AAVSO) after the 2016 periastron event and briefly discuss comparisons to geometric models of the dust production to infer that these features are likely caused by localized dust clumps in the new dust shell.
