A Simple Model for Understanding the DIM Dust Measurement at Comet 67P/Churyumov-Gerasimenko

TL;DR

This paper introduces a simple model of gas and dust flow from comet 67P/Churyumov-Gerasimenko, integrating multiple instrument data to infer surface properties like temperature and ice fraction.

Contribution

A novel, straightforward model that combines measurements from various instruments to better understand dust impact and surface characteristics of the comet.

Findings

Model successfully explains grain impacts observed by DIM.

Combines data from GIADA, MIRO, and VIRTIS for surface analysis.

Provides insights into surface temperature and ice fraction.

Abstract

We present a simple model for gas and dust flow from 67P/Churyumov-Gerasimenko that can be used to understand the grain impact observed by the DIM instrument on Philae (Krueger et al. 2015) We show how model results when applied to the GIADA measurements (Rotundi et al. 2015; Della Corte et al. 2015) can be used, in conjunction with the results found by the MIRO (Schloerb et al. 2015) and VIRTIS (De Sanctis et al. 2015) instruments to infer surface properties such as surface temperature and surface ice fraction.