标题： Subaru望远镜上SCExAO/FIRST的光子光谱干涉术：迈向原行星的H-alpha成像 显示英文标题

标题： Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards H-alpha imaging of protoplanets

摘要： FIRST 是一台运行于可见光波段（600-800纳米，分辨率R约400）的后极端自适应光学（ExAO）光谱-干涉仪。其卓越的角分辨率（对实际天文数据的敏感性分析表明，可以探测到亮度对比度低至0.25λ/D的明亮伴星）以及对 pupil 相位不连续性的敏感性（从几纳米到数十微米不等），使 FIRST 成为未来实现系外行星探测和表征的理想自校准解决方案。我们展示了最新的天文观测结果，以及最近的升级情况，包括一台新型光谱仪（分辨率为R~3,600）的集成与天文测试，该光谱仪专为探测年轻吸积物质的系外行星的H-alpha发射线而优化。 显示英文摘要

摘要： FIRST is a post Extreme Adaptive-Optics (ExAO) spectro-interferometer operating in the Visible (600-800 nm, R~400). Its exquisite angular resolution (a sensitivity analysis of on-sky data shows that bright companions can be detected down to 0.25lambda/D) combined with its sensitivity to pupil phase discontinuities (from a few nm up to dozens of microns) makes FIRST an ideal self-calibrated solution for enabling exoplanet detection and characterization in the future. We present the latest on-sky results along with recent upgrades, including the integration and on-sky test of a new spectrograph (R~3,600) optimized for the detection of H-alpha emission from young exoplanets accreting matter.