The PRVS Pathfinder

Details The PRVS Pathfinder The PRVS Pathfinder

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1118r&link_type=abstract

American Astronomical Society, AAS Meeting #211, #11.18; Bulletin of the American Astronomical Society, Vol. 39, p.747

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The Precision Radial Velocity Spectrometer (PRVS) is a fiber coupled near infrared (NIR) spectrometer being designed for the Gemini International Observatory specifically to search for planets around M stars. These stars emit most of their flux at wavelengths between 1 and 2 microns. These low mass stars are the most likely place where PRV techniques will allow detection of earth mass planets in the so called "Habitable Zone". The pathfinder instrument has become a significant tool in mitigating design, performance and cost risks for the PRVS. Last year we demonstrated the ability to detect radial velocity variations at the 10-15 meter/sec level. Since then, we have made significant progress in our understanding of the limitations of the PRVS in the NIR. In particular, we present the latest improvements we have made to the calibration spectra, as well as the characterization and suppression of the modal noise in the optical fibers.

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