Performance Of The High Resolution IR Spectrograph First From Simulations

Details Performance Of The High Resolution IR Spectrograph First From Simulations Performance Of The High Resolution IR Spectrograph First From Simulations

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560107n&link_type=abstract

American Astronomical Society, AAS Meeting #215, #601.07; Bulletin of the American Astronomical Society, Vol. 36, p.1120

Computer Science

Performance

Scientific paper

Most radial velocity searches for extrasolar planets to date have been conducted using high resolution spectroscopy at optical wavelengths. However, recent studies using IR spectroscopy show more robust radial velocity estimates, especially for low mass and active stars. Here, we present simulated performance results of the Florida InfraRed Silicon immersion grating spectromeTer (FIRST) for future use on the APO 3.5 meter telescope. For these simulations, a representative sample of synthetic stellar spectra were derived from PHOENIX models with consideration for instrumental spectral range and spectral resolution. We compute the fundamental limit of radial velocity measurement given by photon noise for different stellar rotational broadening, effective temperature, and surface gravities. This work allows us to evaluate the performance of FIRST and to develop appropriate observing strategies for the instrument.

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