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Survey of Cryogenic Nitrogen Thermomechanical Property Data Relevant to Outer Solar System Bodies
Author(s) -
Sagmiller Dylan,
Hartwig Jason
Publication year - 2020
Publication title -
earth and space science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.843
H-Index - 23
ISSN - 2333-5084
DOI - 10.1029/2019ea000640
Subject(s) - thermodynamics , heat capacity , grüneisen parameter , adiabatic process , compressibility , thermal conductivity , isothermal process , thermal , sublimation (psychology) , materials science , physics , psychology , psychotherapist
The outer Solar System has many bodies of interest that have continued to captivate the planetary science community, recently Triton, a captured Kuiper belt object (KBO) of Neptune, and Pluto. Limited fly‐by observational data shows evidence that nitrogen is the dominant constituent on these two bodies, potentially also existing on other KBOs as well. Current simulations related to answering fundamental science questions and also to develop future mission science packages and vehicles require accurate, reliable thermodynamic, and mechanical property data of solid and gaseous nitrogen at relevant surface and atmospheric conditions. This paper thus presents an exhaustive review of all available experimental N 2 property data dating back to 1887. Each historical study is systematically analyzed and summarized and then the consolidated database is assembled. Comments are made on the validity of data sets, with an emphasis on specific heat capacity at constant pressure and constant volume ( C P , C v ), thermal conductivity ( κ ), volume thermal expansion ( α V ), density ( ρ ), equilibrium vapor pressure ( P vap ), heat of sublimation (Δ H S ), heat of transition (Δ H T ), Gruneisen parameter ( γ G ), adiabatic and isothermal compressibility ( x S , x T ) and moduli of elasticity ( C 11 , C 12 , C 13 , C 33 , C 44 ). Results here can be used directly and immediately to perform new simulations on N 2 ‐based bodies as well as to determine gaps in the consolidated database for future experiments.

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