Computer Science – Performance
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21113419r&link_type=abstract
American Astronomical Society, AAS Meeting #211, #134.19; Bulletin of the American Astronomical Society, Vol. 39, p.971
Computer Science
Performance
1
Scientific paper
We discuss the performance model of the Precision Radial Velocity Spectrograph (PRVS), a next generation near-infrared instrument for the Gemini Observatory. PRVS is designed to detect earth-mass planets in the habitable zone around mid- to late M dwarf stars. PRVS is a fiber-fed, cooled echelle (R=70,000) spectrograph working in the Y, J and H bands. It uses simultaneously exposed arc-lines and a Fabry-Perot etalon for calibration. Using an end-to-end simulation which includes M dwarf stellar spectra, telluric effects, and a telescope and instrument model, we conclude that one of the most accessible places to search for earth-mass planets in the habitable zone, using Doppler spectroscopy, is around mid- to late-M dwarf stars in the near-infrared. We also show that the long term (years) radial velocity precision of PRVS is expected to be better than 1 m/s.
PRVS Team
Rayner John
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