利用激光频率梳的近红外恒星光谱学
地球与行星天体物理
2019-03-04 v1 天体物理仪器与方法
光学
摘要
在邻近恒星周围发现并刻画系外行星，是由关于地球和太阳系独特性以及生命在我银河系他处存在条件等深刻科学问题所驱动的。多普勒光谱学，或称视向速度（RV）技术，已被广泛用于识别数百颗系外行星，但在探测宜居带内公转的地球质量行星方面存在显著挑战。我们描述了在 10 米 Hobby-Eberly 望远镜上利用 30 GHz 电光激光频率梳与纳米光子超连续谱来校准宜居带行星搜寻光谱仪的红外 RV 光谱学。所展示的仪器精度 <10 cm/s 以及接近 1 m/s 的恒星 RV 开辟了发现和确认围绕 M 矮星（我们银河系中最普遍的恒星类型）的宜居带行星之路。
引用
@article{arxiv.1902.00500,
title = {Stellar Spectroscopy in the Near-infrared with a Laser Frequency Comb},
author = {Andrew J. Metcalf and Tyler Anderson and Chad F. Bender and Scott Blakeslee and Wesley Brand and David R. Carlson and William D. Cochran and Scott A. Diddams and Michael Endl and Connor Fredrick and Sam Halverson and Dan D. Hickstein and Fred Hearty and Jeff Jennings and Shubham Kanodia and Kyle F. Kaplan and Eric Levi and Emily Lubar and Suvrath Mahadevan and Andrew Monson and Joe P. Ninan and Colin Nitroy and Steve Osterman and Scott B. Papp and Franklyn Quinlan and Larry Ramsey and Paul Robertson and Arpita Roy and Christian Schwab and Steinn Sigurdsson and Kartik Srinivasan and Gudmundur Stefansson and David A. Sterner and Ryan Terrien and Alex Wolszczan and Jason T. Wright and Gabriel Ycas},
journal= {arXiv preprint arXiv:1902.00500},
year = {2019}
}