Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy

被引：69

作者：

Delorme, Jacques-Robert ^{[1
,2
]}

Jovanovic, Nemanja ^{[1
]}

Echeverri, Daniel ^{[1
]}

Mawet, Dimitri ^{[1
,3
]}

Wallace, J. Kent ^{[3
]}

Bartos, Randall D. ^{[3
]}

Cetre, Sylvain ^{[2
]}

Wizinowich, Peter ^{[2
]}

Ragland, Sam ^{[2
]}

Lilley, Scott ^{[2
]}

Wetherell, Edward ^{[2
]}

Doppmann, Greg ^{[2
]}

Wang, Jason J. ^{[1
]}

Morris, Evan C. ^{[4
]}

Ruffio, Jean-Baptiste ^{[1
]}

Martin, Emily C. ^{[4
]}

Fitzgerald, Michael P. ^{[5
]}

Ruane, Garreth ^{[3
]}

Schofield, Tobias ^{[1
]}

Suominen, Nick ^{[3
]}

Calvin, Benjamin ^{[1
]}

Wang, Eric ^{[5
]}

Magnone, Kenneth ^{[5
]}

Johnson, Christopher ^{[5
]}

Sohn, Ji M. ^{[5
]}

Lopez, Ronald A. ^{[5
]}

Bond, Charlotte Z. ^{[2
]}

Pezzato, Jacklyn ^{[1
]}

Sayson, Jorge L. ^{[1
]}

Chun, Mark ^{[6
]}

Skemer, Andrew J. ^{[4
]}

机构：

[1] CALTECH, Dept Astron, Pasadena, CA 91125 USA

[2] WM Keck Observ, Kamuela, HI 96743 USA

[3] CALTECH, Jet Prop Lab, Pasadena, CA USA

[4] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA

[5] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA USA

[6] Univ Hawaii, Inst Astron, Hilo, HI 96720 USA

来源：

JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS | 2021年 / 7卷 / 03期

关键词：

instrumentation; W. M. Keck observatory; exoplanets; high contrast imaging; highdispersion coronagraphy; high-resolution spectroscopy; ADAPTIVE OPTICS; ECHELLE SPECTROGRAPH; BROWN DWARF; 1ST LIGHT; NIRSPEC; MASS; COMPANION; SYSTEM;

D O I：

10.1117/1.JATIS.7.3.035006

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument to demonstrate technological and instrumental concepts initially developed for the exoplanet direct imaging field. Located downstream of the current Keck II adaptive optic (AO) system, KPIC contains a fiber injection unit (FIU) capable of combining the high-contrast imaging capability of the AOs system with the high dispersion spectroscopy capability of the current Keck high resolution infrared spectrograph (NIRSPEC). Deployed at Keck in September 2018, this instrument has already been used to acquire high-resolution spectra (R > 30;000) of multiple targets of interest. In the near term, it will be used to spectrally characterize known directly imaged exoplanets and low-mass brown dwarf companions visible in the northern hemisphere with a spectral resolution high enough to enable spin and planetary radial velocity measurements as well as Doppler imaging of atmospheric weather phenomena. Here, we present the design of the FIU, the unique calibration procedures needed to operate a single-mode fiber instrument and the system performance. (C) The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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