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Proceedings Paper

High-resolution Fourier transform spectrograph for characterization of echelle spectrograph wavelength calibrators
Author(s): Alexander G. Glenday; David F. Phillips; Matthew Webber; Chih-Hao Li; Gabor Furesz; Guoqing Chang; Li-Jin Chen; Franz X. Kärtner; Dimitar D. Sasselov; Andrew H. Szentgyorgyi; Ronald L. Walsworth
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Paper Abstract

Wavelength calibrators are a critical component of high precision and accuracy radial velocity measurements. An order of magnitude improvement of the state-of-the-art of calibration of echelle spectrographs is amongst the requirements needed to achieve detection of earth-mass planets around sun-like stars in the habitable zone. We present studies of calibrators using a custom Fourier Transform Spectrograph (FTS) optimized for characterizing broadband, high repetition-rate laser frequency combs ("astro-combs") as well as other calibration sources including Th:Ar lamps and white-light etalons.

Paper Details

Date Published: 24 September 2012
PDF: 12 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 844696 (24 September 2012); doi: 10.1117/12.926366
Show Author Affiliations
Alexander G. Glenday, Harvard-Smithsonian Ctr. for Astrophysics (United States)
David F. Phillips, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Matthew Webber, Northeastern Univ. (United States)
Chih-Hao Li, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Gabor Furesz, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Guoqing Chang, Massachusetts Institute of Technology (United States)
Li-Jin Chen, Massachusetts Institute of Technology (United States)
Franz X. Kärtner, Massachusetts Institute of Technology (United States)
DESY (Germany)
Dimitar D. Sasselov, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Andrew H. Szentgyorgyi, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Ronald L. Walsworth, Harvard-Smithsonian Ctr. for Astrophysics (United States)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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