# Emissivity of Ammonia Ice

## TL;DR

This paper calculates the emissivity of ammonia ice across various frequencies, angles, and polarizations to understand how it influences the temperature of outer Solar System bodies.

## Contribution

It provides a detailed calculation of ammonia ice emissivity as a function of frequency, angle, and polarization, integrating it with Planck's law for temperature estimation.

## Key findings

- Emissivity varies with frequency, angle, and polarization.
- Integrated emissivity influences temperature modeling of icy bodies.
- Provides data for remote sensing of ammonia ice surfaces.

## Abstract

Bodies in the outer Solar System may consist of, or be covered by, solid ammonia. Their temperature depends on its emissivity. We calculate that emissivity as a function of frequency, angle and polarization and convolve it with a Planck function to obtain its integrated emissivity.