Comparing Non-Redundant Masking and Filled-Aperture Kernel Phase for Exoplanet Detection and Characterization

Abstract

The limitations of adaptive optics and coronagraph performance make exoplanet detection close to λ/D extremely difficult with conventional imaging methods. The technique of non-redundant masking (NRM), which turns a filled aperture into an interferometric array, has pushed the planet detection parameter space to within λ/D. For high Strehl, the related filled-aperture kernel phase technique can achieve resolution comparable to NRM, without the associated dramatic decrease in throughput. We present non-redundant masking and kernel phase contrast curves generated for ground- and space-based instruments. We use both real and simulated observations to assess the performance of each technique, and discuss their capabilities for different exoplanet science goals such as broadband detection and spectral characterization.

accepted for publication in JATIS; 57 pages, 29 figures, 18 tables

References in corpus (4)

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• Accreting Circumplanetary Disks: Observational Signatures
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• ELT Imaging of MWC 297 from the 23-m LBTI: Complex Disk Structure and a Companion Candidate
• NICMOS Kernel-Phase Interferometry I: Catalogue of Brown Dwarfs Observed in F110W and F170M
• Spectrally dispersed kernel phase interferometry with SCExAO/CHARIS: proof of concept and calibration strategies
• Mid-infrared photometry of the T Tauri triple system with kernel phase interferometry
• Searching for Protoplanets around MWC 758 and MWC 480 in Br-$\gamma$ using Kernel Phase and SCExAO/CHARIS
• Recovering simulated planet and disk signals using SCALES aperture masking
• Simulating the performance of aperture mask designs for SCALES