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Radio interferometry is the current method of choice for deep spaceastronomy, but in the past few decades optical techniques have becomeincreasingly common. This research seeks to characterize the performance ofaperture masking interferometry in the near-infrared at small scales. A maskcontaining six pairs of apertures at varying diameters and separations wasconstructed for use with a 24-inch telescope at the MIT Wallace AstrophysicalObservatory. Test images of Spica and Jupiter were captured for 28 differenttelescope configurations, varying aperture separation, aperture diameter,collection wavelength, and exposure time. Lucky imaging was used to account foratmospheric perturbations. Each image was reduced via bias and dark frames toaccount for sensor noise, and then the full width at half maximum for eachimage was computed and used as a proxy for maximum angular resolution. The dataimply that at small scales aperture size primarily controls the observedmaximum angular resolution, but further data are required to substantiate theclaim.

Characterizing aperture masking interferometry in the near-infrared as an effective technique for astronomical imaging