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Measuring Stellar Radial Velocities with a Dispersed Fixed-Delay Interferometer
Suvrath Mahadevan, Julian van Eyken, Jian Ge +5
We demonstrate the ability to measure precise stellar barycentric radial velocities with the dispersed fixed-delay interferometer technique using the Exoplanet Tracker (ET), an ins…
Comparative Lyot Coronagraphy with Extreme AO Systems
Justin Crepp, Andrew Vanden Heuvel, Jian Ge
As adaptive optics technology continues to improve, the stellar coronagraph will play an ever increasing role in ground-based high-contrast imaging observations. Though several dif…
Laboratory Testing of a Lyot Coronagraph Equipped with an Eighth-Order Notch Filter Image Mask
Justin R. Crepp, Jian Ge, Andrew D. Vanden Heuvel +2
We have built a series of notch filter image masks that make the Lyot coronagraph less susceptible to low-spatial-frequency optical aberrations. In this paper, we present experimen…
Eighth-Order Image Masks for Terrestrial Planet Finding
Marc J. Kuchner, Justin Crepp, Jian Ge
We describe a new series of band-limited image masks for coronagraphy that are insensitive to pointing errors and other low-spatial-frequency optical aberrations. For a modest cost…