# Thermal conductivity and coordination number of compressed dust aggregates

## TL;DR

This paper investigates how the structure of compressed dust aggregates influences their heat transfer properties, revealing a power-law relationship between thermal conductivity, filling factor, and coordination number.

## Contribution

It introduces a simple relationship between coordination number and filling factor and models thermal conductivity as a power-law function of these parameters.

## Key findings

- Coordination number correlates with filling factor.
- Thermal conductivity follows a power-law with filling factor and coordination number.
- Provides a framework for understanding heat transfer in planetary dust aggregates.

## Abstract

Understanding the heat transfer mechanism within dust aggregates is of great importance for many subjects in planetary science. We calculated the coordination number and the thermal conductivity through the solid network of compressed dust aggregates. We found a simple relationship between the coordination number and the filling factor and revealed that the thermal conductivity through the solid network of aggregates is represented by a power-law function of the filling factor and the coordination number.