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A VIPA Spectrograph with Ultra-high Resolution and Wavelength Calibration for Astronomical Applications
Zhu XM(朱小明); Lin D(林栋); Hao ZB(郝志博); Wang J(王靓); He JP(何晋平)
2020-09
Source PublicationThe Astronomical Journal
Volume160Issue:3Pages:135-143
Abstract
A prototype spectrograph using a Virtually Imaged Phased Array (VIPA) as the main dispersion element is presented, and its performance is fully examined in our laboratory. The single-mode, fiber-fed spectrograph with simultaneous wavelength calibration possesses a spectral resolution well in excess of R»1.12´106 while the size of the VIPA is several orders of magnitude smaller than that of a conventional échelle with comparable
resolution. In laboratory tests, the VIPA-based instrument with a homemade Yb:fiber ring laser frequency comb demonstrates a mode-to-mode tracking stability of 41 cm s−1 over a period of 6 hr. The VIPA spectrograph has promising applications in various astronomical observations in which ultra-high resolution and calibration precision are imperative, such as solar physics research, exoplanet searching with the radial velocity method, and O2 detection in the atmosphere of Earth-like planets. Ultimately, feasible optimizations for night-sky observations under seeing limited conditions are discussed.
Subject Area天文技术与方法
Language中文
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/1766
Collection中国科学院南京天文光学技术研究所_期刊论文
中科院天文光学技术重点实验室_期刊论文
Affiliation南京天文光学技术研究所
Recommended Citation
GB/T 7714
Zhu XM,Lin D,Hao ZB,et al. A VIPA Spectrograph with Ultra-high Resolution and Wavelength Calibration for Astronomical Applications[J]. The Astronomical Journal,2020,160(3):135-143.
APA Zhu XM,Lin D,Hao ZB,Wang J,&He JP.(2020).A VIPA Spectrograph with Ultra-high Resolution and Wavelength Calibration for Astronomical Applications.The Astronomical Journal,160(3),135-143.
MLA Zhu XM,et al."A VIPA Spectrograph with Ultra-high Resolution and Wavelength Calibration for Astronomical Applications".The Astronomical Journal 160.3(2020):135-143.
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