论文标题
ETA Carinae：中央二元，其相互作用的风及其前景喷射的不断发展的景观
Eta Carinae: an evolving view of the central binary, its interacting winds and its foreground ejecta
论文作者
论文摘要
ETA汽车的FUV光谱在使用HST/STI的二十年中记录下来，记录了由于视线中消散灭绝而引起的谐振线的多次变化。 FUV通量增加了近十倍，这导致了Homunculus中多个壳的电离和分子氢的照片毁灭。比较观察到的谐振线曲线与CMFGEN模型曲线的比较，可以将风孔碰撞和壳吸收与初风分开，P Cygni曲线。散发的Occulter优先掩盖了相对于非常延伸的一风一面的中央二进制和相互作用的风。现在，我们能够用轨道相监测碰撞风的变化。高速瞬态吸收发生在最近的植物旁龙经通道中，表明二次风加速了主要风，这导致了下游，高速弓轴，这是新产生的每个轨道周期。没有证据表明二元风的性质变化。
FUV spectra of Eta Car, recorded across two decades with HST/STIS, document multiple changes in resonant lines caused by dissipating extinction in our line of sight. The FUV flux has increased nearly ten-fold which has led to increased ionization of the multiple shells within the Homunculus and photo-destruction of molecular hydrogen. Comparison of observed resonant line profiles with CMFGEN model profiles allows separation of wind-wind collision and shell absorptions from the primary wind, P Cygni profiles.The dissipating occulter preferentially obscured the central binary and interacting winds relative to the very extended primary wind. We are now able to monitor changes in the colliding winds with orbital phase. High velocity transient absorptions occurred across the most recent periastron passage, indicating acceleration of the primary wind by the secondary wind which leads to a downstream, high velocity bowshock that is newly generated every orbital period. There is no evidence of changes in the properties of the binary winds.
