Simulating medium-spectral-resolution exoplanet characterization with SCALES angular/reference differential imaging

Aditi Desai; Stephanie E. Sallum; Ravinder Banyal; Natalie Batalha; Natasha Batalha; Geoff Blake; Tim Brandt; Zack Briesemeister; Katherine de Kleer; Imke de Pater; Josh Eisner; Wen-fai Fong; Tom Greene; Mitsuhiko Honda; Isabel Kain; Charlie Kilpatrick; Mackenzie Lach; Mike Liu; Bruce Macintosh; Raquel A. Martinez; Dimitri Mawet; Brittany Miles; Caroline Morley; Diana Powell; Patrick Sheehan; Andrew J. Skemer; Justin Spilker; R. Deno Stelter; Jordan Stone; Arun Surya; Sivarani Thirupathi; Kevin Wagner; Yifan Zhou

doi:10.1117/12.2677846

5 October 2023 Simulating medium-spectral-resolution exoplanet characterization with SCALES angular/reference differential imaging

Aditi Desai, Stephanie E. Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Tim Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Mackenzie Lach, Mike Liu, Bruce Macintosh, Raquel A. Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Diana Powell, Patrick Sheehan, Andrew J. Skemer, Justin Spilker, R. Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou

Author Affiliations +

Proceedings Volume 12680, Techniques and Instrumentation for Detection of Exoplanets XI; 1268023 (2023) https://doi.org/10.1117/12.2677846
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Conference Poster

Abstract

SCALES (Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy) is a 2 micron to 5 micron high-contrast lenslet-based Integral Field Spectrograph (IFS) designed to characterize exoplanets and their atmospheres. The SCALES medium-spectral-resolution mode uses a lenslet subarray with a 0.34 x 0.36 arcsecond field of view which allows for exoplanet characterization at increased spectral resolution. We explore the sensitivity limitations of this mode by simulating planet detections in the presence of realistic noise sources. We use the SCALES simulator scalessim to generate high-fidelity mock observations of planets that include speckle noise from their host stars, as well as other atmospheric and instrumental noise effects. We employ both angular and reference differential imaging as methods of disentangling speckle noise from the injected planet signals. These simulations allow us to assess the feasibility of speckle deconvolution for SCALES medium resolution data, and to test whether one approach outperforms another based on planet angular separations and contrasts.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Aditi Desai, Stephanie E. Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Tim Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Mackenzie Lach, Mike Liu, Bruce Macintosh, Raquel A. Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Diana Powell, Patrick Sheehan, Andrew J. Skemer, Justin Spilker, R. Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, and Yifan Zhou "Simulating medium-spectral-resolution exoplanet characterization with SCALES angular/reference differential imaging", Proc. SPIE 12680, Techniques and Instrumentation for Detection of Exoplanets XI, 1268023 (5 October 2023); https://doi.org/10.1117/12.2677846

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