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- W2070462344 abstract "We present a new technique based on fixed-delay interferometry for high throughput, high precision and multi-object Doppler radial velocity (RV) surveys for extra-solar planets. The Doppler measurements are conducted through monitoring the stellar fringe phase shifts of the interferometer. High Doppler sensitivity is achieved through optimizing the optical delay in the interferometer and reducing photon noise by measuring multiple fringes over a broadband. This broadband operation is performed through coupling the interferometer with a low to medium resolution post-disperser. The total Doppler sensitivity of this approach is, in theory, independent of dispersing power of the post-disperser, which allows development of new generation RV machines with much reduced size, high stability and low cost compared to echelles. This technique has the potential to improve RV survey efficiency by 2-3 orders of magnitude over cross-dispersed echelle spectroscopy approach to allow a full sky RV survey for planets once the instrument is operated as a multi-object instrument and optimized for high throughput. The simple interferometer response potentially allows this technique to be operated at other wavelengths independent of popular iodine reference sources to search for planets around early type stars, white dwarfs, and M, L and T dwarfs for the first time." @default.
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- W2070462344 date "2002-06-01" @default.
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- W2070462344 title "Fixed Delay Interferometry for Doppler Extrasolar Planet Detection" @default.
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- W2070462344 doi "https://doi.org/10.1086/341226" @default.
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