A spectrograph for exoplanet observations calibrated at the centimetre-per-second level

Tobias Wilken (), Gaspare Lo Curto, Rafael A. Probst, Tilo Steinmetz, Antonio Manescau, Luca Pasquini, Jonay I. González Hernández, Rafael Rebolo, Theodor W. Hänsch, Thomas Udem and Ronald Holzwarth ()
Additional contact information
Tobias Wilken: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
Gaspare Lo Curto: European Southern Observatory, Karl-Schwarzschild-Strasse 3, D-85748 Garching, Germany
Rafael A. Probst: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
Tilo Steinmetz: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
Antonio Manescau: European Southern Observatory, Karl-Schwarzschild-Strasse 3, D-85748 Garching, Germany
Luca Pasquini: European Southern Observatory, Karl-Schwarzschild-Strasse 3, D-85748 Garching, Germany
Jonay I. González Hernández: Instituto de Astrofísica de Canarias, Calle Via Láctea s/n, E-38205 La Laguna, Spain
Rafael Rebolo: Instituto de Astrofísica de Canarias, Calle Via Láctea s/n, E-38205 La Laguna, Spain
Theodor W. Hänsch: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
Thomas Udem: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
Ronald Holzwarth: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany

Nature, 2012, vol. 485, issue 7400, 611-614

Abstract: Calibration of an astronomical spectrograph using a laser frequency comb yields a short-term Doppler shift repeatability of 2.5 cm s−1, which is sufficient to calculate the orbit of an extrasolar planet.

Date: 2012
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DOI: 10.1038/nature11092

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