Abstract
SCALES (Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy) is a 2 - 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.
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
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. R.A.M is supported by the National Science Foundation MPS-Ascend Postdoctoral Research Fellowship under Grant No. 2213312.
Keywords
- ADI
- RDI
- SCALES
- exoplanet characterization
- high-contrast spectroscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering