Improving constraints on planet formation with custom high-resolution accretion-tracing observing modes designed for SCALES

Raquel A. Martinez; Steph Sallum; Andrew J. Skemer

doi:10.1117/12.3020657

19 July 2024 Improving constraints on planet formation with custom high-resolution accretion-tracing observing modes designed for SCALES

Raquel A. Martinez, Steph Sallum, Andrew J. Skemer

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 1309671 (2024) https://doi.org/10.1117/12.3020657
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES) will be a thermal infrared high-contrast integral field spectrograph located at the W.M. Keck Observatory. SCALES will detect and characterize planets currently inaccessible to detailed study by operating at mid-infrared (2-5 µm) wavelengths and leveraging integral-field spectroscopy to distinguish exoplanet radiation from residual starlight. SCALES’ current medium resolution mode (R≈3,500-7,000) will enable investigations of planet accretion processes, though in the future, SCALES will be upgraded with additional higher resolution gratings. We present the designs of custom high-resolution observing modes for SCALES that differentiate accretion properties and geometries from simulated observations of accreting protoplanets. We arrive at these designs by generating a large grid of modeled hydrogen emission line profiles and ray-trace them with SCALES’ end-to-end simulator, scalessim, to produce mock datasets. In this proceeding, we describe the accretion parameter constraining power gained when observing with these specialized accretion-tracing modes over the baseline medium-resolution modes of SCALES.

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Raquel A. Martinez, Steph Sallum, and Andrew J. Skemer "Improving constraints on planet formation with custom high-resolution accretion-tracing observing modes designed for SCALES", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 1309671 (19 July 2024); https://doi.org/10.1117/12.3020657

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