Abstract
SCALES (Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy) is a high-contrast lenslet-based integral field spectrograph (IFS) designed to characterize exoplanet atmospheres in the 2-5 micron wavelength range. The SCALES medium-resolution mode provides the ability to characterize exoplanets at increased spectral resolution via the use of a lenslet subarray with a 0.34 x 0.36 arcsecond field of view and an image slicer. We use the SCALES simulator scalessim to generate high-fidelity mock observations of planets in the medium-resolution mode that include realistic Keck adaptive optics performance, as well as other atmospheric and instrumental noise effects, to simulate planet detections, and then employ angular differential imaging to extract the planet spectra. Analyzing the recovered spectra from these simulations allows us to quantify the effects of systematic noise sources on planet characterization, in particular residual speckle noise following angular differential data processing. We use these simulated recovered spectra to explore SCALES' ability to constrain molecular abundances and disequilibrium chemistry in giant exoplanet atmospheres.
Original language | English (US) |
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Title of host publication | Ground-Based and Airborne Instrumentation for Astronomy X |
Editors | Julia J. Bryant, Kentaro Motohara, Joel R. Vernet |
Publisher | SPIE |
ISBN (Electronic) | 9781510675155 |
DOIs | |
State | Published - 2024 |
Event | Ground-Based and Airborne Instrumentation for Astronomy X 2024 - Yokohama, Japan Duration: Jun 16 2024 → Jun 21 2024 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 13096 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Ground-Based and Airborne Instrumentation for Astronomy X 2024 |
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Country/Territory | Japan |
City | Yokohama |
Period | 6/16/24 → 6/21/24 |
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
- SCALES
- angular differential imaging
- 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