Stellar spectroscopy in the near-infrared with a laser frequency comb
Stellar spectroscopy in the near-infrared with a laser frequency comb
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DOI：
10.1364/optica.6.000233
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发表时间：
2019-02-20
期刊：
影响因子：
10.4
通讯作者：
Ycas, Gabriel
中科院分区：
文献类型：
--
作者：
Metcalf, Andrew J.;Anderson, Tyler;Ycas, Gabriel
发现和表征附近恒星周围的系外行星是由关于地球和太阳系独特性的深刻科学问题以及生命在银河系其他地方存在的条件所驱动的。多普勒光谱学，或径向速度（RV）技术，已被广泛用于识别数百颗系外行星，但在探测可居住区内轨道的类地行星方面存在显着挑战。我们描述了红外RV光谱在10米的霍比-埃伯利望远镜，利用一个30 GHz的电光激光频率梳与纳米光子超连续谱校准的宜居带行星光谱仪。经证明的仪器精密度
The discovery and characterization of exoplanets around nearby stars are driven by profound scientific questions about the uniqueness of Earth and our solar system, and the conditions under which life could exist elsewhere in our galaxy. Doppler spectroscopy, or the radial velocity (RV) technique, has been used extensively to identify hundreds of exoplanets, but with notable challenges in detecting terrestrial mass planets orbiting within habitable zones. We describe infrared RV spectroscopy at the 10 m Hobby-Eberly Telescope that leverages a 30 GHz electro-optic laser frequency comb with a nanophotonic supercontinuum to calibrate the Habitable Zone Planet Finder spectrograph. Demonstrated instrument precision