Near-infrared calibration systems for precise radial-velocity measurements

S. L. Redman, F. Kerber, G. Nave, S. Mahadevan, L. W. Ramsey, J. Smoker, H. U. Käufl, P. Figueira

Resumo
We present work done to prepare two new near-infrared calibration sources for use on high-precision astrophysical spectrographs. Uranium-neon is an atomic calibration source, commercially available as a hollow-cathode lamp, with over 10 000 known emission lines between 0.85 and 4 μm. Four gas cells — containing C₂H₂, H¹³CN, ¹²CO, and ¹³CO, respectively—are available as National Institute of Standards and Technology (nist) Standard Reference Materials (SRMs), and provide narrow absorption lines between 1.5 and 1.65 μm. These calibration sources may prove useful for wavelength-calibrating the future near-infrared high-precision radial-velocity spectrometers, including the Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph (CARMENES), the SpectroPolarimetre InfraROUge (SPIRou)^∗, and the Habitable-Zone Planet Finder (HPF).

Ground-based and Airborne Instrumentation for Astronomy IV. Proceedings of the SPIE
(Eds.) I. S. McLean, S. K. Ramsay, H. Takami

SPIE
Vol. 8446,
2012

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