Abstract

Whitepaper #063 submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Topics: atmospheric/exospheric evolution; giant planets systems; solar system formation, dynamics processes, and chronology

Highlights

  • Comparative planetology of the bulk composition is a key ingredient in the development of models to explain the formation and evolution of our Solar System

  • We focus our discussion on the Ice Giants, bodies that are common amongst exoplanets [e.g., 18], and which to date are far from understood

  • At the radio wavelengths that probe the deep atmospheres of the giant planets, we observe the thermal radiation emitted by the atmosphere

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Summary

Summary

The deep atmospheres of the giant planets provide crucial constraints on their composition, an essential parameter in planet formation models. These deep atmospheres can only be probed remotely at radio wavelengths. The ngVLA will provide unique scientific observations (e.g., full maps over a broad wavelength range, and mm-wavelength spectroscopy), providing invaluable support to space missions. It is a potential ground station for spacecraft telemetry

Introduction
Deep Tropospheres using Continuum Wavelengths
Stratospheres and Disequilibrium Species using mm-Spectroscopy
Findings
Conclusions
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