Simulations of Effects of Nanophase Iron Space Weather Products on Lunar Regolith Reflectance Spectra

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http://hdl.handle.net/10138/232531

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Escobar-Cerezo , J , Penttilä , A , Kohout , T , Munoz , O , Moreno , F & Muinonen , K 2018 , ' Simulations of Effects of Nanophase Iron Space Weather Products on Lunar Regolith Reflectance Spectra ' , Astrophysical Journal , vol. 853 , no. 1 , 71 . https://doi.org/10.3847/1538-4357/aaa24d

Title: Simulations of Effects of Nanophase Iron Space Weather Products on Lunar Regolith Reflectance Spectra
Author: Escobar-Cerezo, J.; Penttilä, Antti; Kohout, T.; Munoz, O.; Moreno, F.; Muinonen, K.
Contributor organization: Particle Physics and Astrophysics
Planetary-system research
Department of Physics
Date: 2018-01-20
Language: eng
Number of pages: 6
Belongs to series: Astrophysical Journal
ISSN: 0004-637X
DOI: https://doi.org/10.3847/1538-4357/aaa24d
URI: http://hdl.handle.net/10138/232531
Abstract: Lunar soil spectra differ from pulverized lunar rocks spectra by reddening and darkening effects, and shallower absorption bands. These effects have been described in the past as a consequence of space weathering. In this work, we focus on the effects of nanophase iron (npFe(0)) inclusions on the experimental reflectance spectra of lunar regolith particles. The reflectance spectra are computed using SIRIS3, a code that combines ray optics with radiative-transfer modeling to simulate light scattering by different types of scatterers. The imaginary part of the refractive index as a function of wavelength of immature lunar soil is derived by comparison with the measured spectra of the corresponding material. Furthermore, the effect of adding nanophase iron inclusions on the reflectance spectra is studied. The computed spectra qualitatively reproduce the observed effects of space weathered lunar regolith.
Subject: comets: general
methods: numerical
minor planets
asteroids: general
planets and satellites: surfaces
scattering
ION IRRADIATION
AIRLESS BODIES
FINEST FRACTION
NEAR-EARTH
SCATTERING
PARTICLES
ASTEROIDS
OLIVINE
MERCURY
BELT
115 Astronomy, Space science
Peer reviewed: Yes
Rights: unspecified
Usage restriction: openAccess
Self-archived version: publishedVersion


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