Multiplicity Study of Exoplanet Host Stars

在我们利用Astralux对系外行星宿主恒星进行多重性研究的过程中，我们已经可以澄清71个行星系统的恒星多重性状况。此外，我们还可以探测到一颗新的同运动恒星伴星，它的伴星已被第二纪元的后续成像所证实。现在我们想要获得一个新的，最近探测到的伴星候选的第二个历元后续成像，以及30个新的系外行星宿主恒星的第一个历元图像，它们的多重性到目前为止还没有被研究。有了Astralux，我们可以探测到新的具有系外行星的近距离恒星系统，从理论上讲，系外行星是行星形成最具挑战性的环境。我们的观测将有助于确定恒星多样性对行星形成和演化的真正影响。

In the course of our multiplicity study of exoplanet host stars with ASTRALUX, we could already clarify the stellar multiplicity status of 71 planetary systems. Furthermore, we could detect one new co-moving stellar companion, whose companionship was proven with 2nd epoch follow-up imaging. Now we want to obtain 2nd epoch follow-up imaging of one new, just recently detected, companion-candidate, as well as 1st epoch images of 30 new exoplanet host stars, whose multiplicity was not studied so far. With ASTRALUX we can detect new close stellar systems with exoplanets, the most challenging environments for planet formation, as proposed by theory. Our observations will contribute to the determination of the real impact of stellar multiplicity on planet formation and evolution.