Spectroscopic characterization of the Gefion Asteroid Family: implications for L-chondrite Link
AffiliationLunar and Planetary Laboratory, University of Arizona
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PublisherOxford University Press
CitationMcgraw, A. M., Reddy, V., & Sanchez, J. A. (2022). Spectroscopic characterization of the Gefion Asteroid Family: Implications for L-chondrite Link. Monthly Notices of the Royal Astronomical Society, 515(4), 5211–5218.
RightsCopyright © 2022 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractAsteroid families are cosmic puzzles that help us understand the true nature of their original parent body. Ordinary chondrites are the most common types of meteorites that arrive to Earth and are composed of three subtypes: H, L, and LL chondrites. The Gefion Asteroid Family (GAF) has been proposed to be the source asteroids for the L chondrites. In this work, we present the results of a spectroscopic campaign of six dynamically defined members of the GAF to test the hypothesis if L chondrites come from this family. Our compositional analysis of these six asteroids shows a range of meteorite analogues from L- to LL chondrites. Combining these results with our previous work, we note that GAF asteroids span the entire ordinary chondrite range of H-, L-, and LL. The observed compositional heterogeneity in the GAF is likely due to largest members of the GAF consisting of interlopers. A more detailed spectroscopic survey of a large subset of asteroids in the GAF region is needed to further isolate true family members. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
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