Precision Radial Velocities in the Infrared
Abstract
Over 250 extra-solar planets have been discovered to date using a variety of techniques. The majority have been discovered at optical wavelengths from the Doppler shift of F, G and K stars induced by orbiting planets. We have constructed models simulating likely planets around M dwarfs and demonstrated the ability to recover their radial velocity signals in the infrared. We have conducted experiments in the infrared with a brass-board instrument to explore real-world issues. We are thus confident that a stabilised radial velocity spectrometer with a single-shot 1 and 1.7 microns coverage at a resolution of around 70 k can achieve an instrumental radial velocity error of 0.5 m/s. This enables the efficient measurement of radial velocities for M, L and T spectral classes.
- Publication:
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Science with the VLT in the ELT Era
- Pub Date:
- 2009
- DOI:
- 10.1007/978-1-4020-9190-2_74
- Bibcode:
- 2009ASSP....9..415J
- Keywords:
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- Physics