NPF最新消息：智利轻型反射镜的开发
NPF update: Light-weight mirror development in Chile
摘要：
行星形成研究正在蓬勃发展的时代，我们正在从谈论“原行星盘“转向“行星形成盘”（安德鲁斯等人，2018年）。然而，这种转变仍然是由间接的（但令人信服的）暗示推动的。到目前为止，直接探测“正在形成中”的行星仍然是难以捉摸的，只有PDS 70 b和c是显著的例外（Haffert等人，2019; Keppler等人，2018; Müller等人，2018年）。检测的稀缺性归因于技术挑战，即使对于我们可以检测到的稀有珠宝，表征（解决其山丘球体）也是无法实现的。这一方向的下一步要求从近红外到中红外干涉测量从$\sim$ 100 m基线跳到$\sim$ 1 km，从很少的望远镜（2到6个）跳到20个或更多（PFI类概念，Monnier等人2018）。这一转变需要设计出更经济实惠的近中红外望远镜。由于这种望远镜的驱动成本取决于主镜，特别是其直径和重量的缩放，我们解决这个问题的方法依赖于低成本光镜的生产。
英文摘要：
Planet Formation research is blooming in an era where we are moving from speaking about "protoplanetary disks" to "planet forming disks" (Andrews et al., 2018). However, this transition is still motivated by indirect (but convincing) hints. Up to date, the direct detection of planets "in the making" remains elusive with the remarkable exception of PDS70b and c (Haffert et al., 2019; Keppler et al., 2018; Müller et al., 2018). The scarcity of detections is attributable to technical challenges, and even for the rare jewels that we can detect, characterization (resolving their hill spheres) is unachievable. The next step in this direction demands from near to mid-infrared interferometry to jump from $\sim$100 m baselines to $\sim$1 km, and from very few telescopes (two to six) to 20 or more (PFI like concepts, Monnier et al. 2018). This transition needs for more affordable near to mid-infrared telescopes to be designed. Since the driving cost for such telescopes resides on the primary mirror, in particular scaling with its diameter and weight, our approach to tackle this problem relies on the production of low-cost light mirrors.
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