Externally dispersed interferometry for planetary studies

David J. Erskine; Jerry Edelstein; Daniel Harbeck; James Lloyd

doi:10.1117/12.617879

14 September 2005 Externally dispersed interferometry for planetary studies

David J. Erskine, Jerry Edelstein, Daniel Harbeck, James Lloyd

Proceedings Volume 5905, Techniques and Instrumentation for Detection of Exoplanets II; 59050R (2005) https://doi.org/10.1117/12.617879
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

David J. Erskine, Jerry Edelstein, Daniel Harbeck, and James Lloyd "Externally dispersed interferometry for planetary studies", Proc. SPIE 5905, Techniques and Instrumentation for Detection of Exoplanets II, 59050R (14 September 2005); https://doi.org/10.1117/12.617879

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