ROTATIONALLY RESOLVED VISIBLE AND NEAR-INFRARED SPECTROSCOPIC CHARACTERIZATION OF ASTEROID (223) ROSA
Publisher
The University of Arizona.Rights
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.Abstract
We present the results of our April, 2023 spectroscopic observation campaign in the form of four quarter-phase visible and near-infrared rotationally resolved spectra of the asteroid (223) Rosa as well as a rotationally combined median spectrum. (223) Rosa was confirmed to be an X-type asteroid under the Bus-DeMeo taxonomic system with a ~7.7%/𠜇m hemispherical variation caused by potential grain size or topological differences. Rosa's closest meteorite analog was found to be a weighted linear spectral mixture between 2 primitive meteorite types: a <125 𠜇m, relatively fresh sample of the meteorite Tagish Lake (10 %), and a 45-90 𠜇m sample of the meteorite Tarda (90 %) through chi-squared analysis. Similarities were found with both spectra, but albedo and density measurements favor Tagish Lake.Type
Electronic Thesistext
Degree Name
B.S.Degree Level
bachelorsDegree Program
AstronomyHonors College