Large Earth Finder
Giant Magellan Telescope Consortium Large Earth Finder (G-CLEF)
The Large Earth Finder will measure the masses of Earth-like planets outside of our solar system and search for biosignatures, such as oxygen, in their atmospheres. Other specialties include characterizing quasars and the most metal poor stars, such as the [Fe/H]<–7.1 star SMSS J031300.36-670839.3. The Large Earth Finder is a high spatial resolution visible light Echelle spectrograph with red and blue channels, capable of operating in natural seeing during early operations. It is the only high-resolution visible spectrograph planned for the first decade of use on all the three of the world’s proposed Extremely Large Telescopes. The instrument will also be the first science instrument installed on the Giant Magellan Telescope.
Designer
The G-CLEF is being developed by astrophysicist Andrew Szentgyorgyi from the Center for Astrophysics | Harvard & Smithsonian.
Science Goals
- Exoplanets: precise velocities, atmospheric properties
- Stars: abundances, isotopes, and velocities
- Dwarf galaxies: abundances, dark matter
- Cosmology: chemical evolution, fine structure constant
Technical Specifications
Spectral resolutions:
19,000 | 35,000 | 108,000
Wavelength range:
3500 – 9500 Å
Velocity precision:
<50 cm/s per observation; <10 cm/s over time
Modes:
High throughput, Medium Resolution, High resolution, precision radial velocity, multi-object (with MANIFEST fiber system)
Field of view (Imager):
300 arcmin2 (with MANIFEST fiber system)
Additional Resources
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