14 September 2005 Externally dispersed interferometry for planetary studies
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Abstract
We describe a plan to study the radial velocity of low mass stars and brown dwarfs using a combination of interferometry and multichannel dispersive spectroscopy, Externally Dispersed Interferometry (EDI). The EDI technology allows implementation of precision velocimetry and spectroscopy on existing moderate-resolution echelle or linear grating spectrograph over their full and simultaneous bandwidth. We intend to add EDI to the new Cornell TripleSpec infrared simultaneous JHK-band spectrograph at the Palomar Observatory 200" telescope for a science-demonstration program that will allow a unique Doppler-search for planets orbiting low mass faint M, L and T type stars. The throughput advantage of EDI with a moderate resolution spectrograph is critical to achieving the requisite sensitivity for the low luminosity late L and T dwarfs.
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David J. Erskine, David J. Erskine, Jerry Edelstein, Jerry Edelstein, Daniel Harbeck, Daniel Harbeck, James Lloyd, James Lloyd, } "Externally dispersed interferometry for planetary studies", Proc. SPIE 5905, Techniques and Instrumentation for Detection of Exoplanets II, 59050R (14 September 2005); doi: 10.1117/12.617879; https://doi.org/10.1117/12.617879
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