Abstract
The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES) instrument is a lenslet-based integral field spectrograph that will operate at 2 to 5 microns, imaging and characterizing colder (and thus older) planets than current high-contrast instruments. Its spatial resolution for distant science targets and/or close-in disks and companions could be improved via interferometric techniques such as sparse aperture masking. We introduce a nascent Python package, NRM-artist, that we use to design several SCALES masks to be nonredundant and to have uniform coverage in Fourier space. We generate high-fidelity mock SCALES data using the scalessim package for SCALES’ low spectral resolution modes across its 2 to 5 micron bandpass. We include realistic noise from astrophysical and instrument sources, including Keck adaptive optics and Poisson noise. We inject planet and disk signals into the mock datasets and subsequently recover them to test the performance of SCALES sparse aperture masking and to determine the sensitivity of various mask designs to different science signals.
Original language | English (US) |
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Title of host publication | Techniques and Instrumentation for Detection of Exoplanets XI |
Editors | Garreth J. Ruane |
Publisher | SPIE |
ISBN (Electronic) | 9781510665743 |
DOIs | |
State | Published - 2023 |
Event | Techniques and Instrumentation for Detection of Exoplanets XI 2023 - San Diego, United States Duration: Aug 21 2023 → Aug 24 2023 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 12680 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Techniques and Instrumentation for Detection of Exoplanets XI 2023 |
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Country/Territory | United States |
City | San Diego |
Period | 8/21/23 → 8/24/23 |
Funding
The authors would like to extend gratitude to Dr. Maaike van Kooten for providing the Keck OPD data utilized in this work. We are grateful to the Heising-Simons Foundation, the Alfred P. Sloan Foundation, and the Mt. Cuba Astronomical Foundation for their generous support of our efforts. This project also benefited from work conducted under the NSF Graduate Research Fellowship Program. S. S. is supported by the National Science Foundation under MRI Grant No. 2216481. Finally, we would like to acknowledge the Code Astro workshop at Northwestern University for providing M. R. L. with time, guidance, and opportunity to begin developing NRM-artist.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering