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Non-Redundant Aperture Masking Interferometry (AMI) and segment phasing with JWST-NIRISS

Sivaramakrishnan, Anand; Lafreniere, David; Ford, K E Saavik; McKernan, Barry; Cheetham, Anthony; Greenbaum, Alexandra Z; Tuthill, Peter G; Lloyd, J P; Doyon, R; Koekemoer, Anton; Ireland, Michael


The Aperture Masked Interferometry (AMI) mode on JWST-NIRISS is implemented as a 7-hole, 15% throughput, non-redundant mask (NRM) that operates with 5-8% bandwidth filters at 3.8, 4.3, and 4.8 microns. We present refined estimates of AMI's expected point-source contrast, using realizations of noise matched to JWST pointing requirements, NIRISS detector noise, and Rev-V JWST wavefront error models for the telescope and instrument. We describe our point-source binary data reduction algorithm,...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Conference paper
Source: Proceedings of SPIE - The International Society for Optical Engineering
DOI: 10.1117/12.925565
Access Rights: Open Access


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