Precise Near-Infrared Radial Velocities with the TripleSpec Exoplanet Discovery Instrument (TEDI)

Details Precise Near-Infrared Radial Velocities with the TripleSpec Exoplanet Discovery Instrument (TEDI) Precise Near-Infrared Radial Velocities with the TripleSpec Exoplanet Discovery Instrument (TEDI)

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21740103m&link_type=abstract

American Astronomical Society, AAS Meeting #217, #401.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Attaining 10 m/s of Doppler velocity precision with near-infrared (NIR) spectroscopy enables the detection and mass measurement of terrestrial-mass and larger exoplanets orbiting mid-to-late M dwarf stars. This is especially exciting considering that JWST has the sensitivity to detect oxygen, an indicator of life, in the atmospheres of terrestrial planets transiting mid-to-late M dwarfs. Radial velocities are required to verify planetary transits. TEDI is an instrument on the Palomar Hale Telescope designed to measure precise NIR radial velocities. It is the combination of a variable-delay interferometer and TripleSpec, a resolution 2700 spectrograph covering 1.0 to 2.5 microns simultaneously. This technique has the potential for broad implementation on 4-meter-class telescopes, for both NIR RV measurements and high-resolution NIR spectroscopy. I will describe the instrument, method, data analysis, and recent results from TEDI, as all are a part of my Ph.D. dissertation at Cornell.

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