Kavli Affiliate: Bruce Macintosh
| First 5 Authors: Aditi Desai, Stephanie E. Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha
| Summary:
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.
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