研究揭示福后星族或是高铁球粒陨石“太空母体”

Core Insights - The research team from the Yunnan Observatory of the Chinese Academy of Sciences has determined the density and porosity of certain members of the Fuxian asteroid family, suggesting it may be the "parent body" of high-iron chondrites [1][2] - The findings have been published in the international journal "Astronomical Journal" [1] Group 1: Research Findings - A systematic analysis of 44 asteroids from the Fuxian family was conducted, identifying 41 genuine family members after excluding 3 "impostors" [1] - The study measured the size, shape, rotation state, density, and porosity of these asteroids, providing insights into their internal structure and evolutionary processes [1][2] Group 2: Specific Data - The maximum density recorded was for asteroid (852), at 3.54 grams per cubic centimeter, which is close to the average particle density of high-iron chondrites [2] - Three asteroids (290, 587, 1164) exhibited porosity exceeding 41%, indicating a typical "rubble pile" structure [2] Group 3: Implications - The research not only reveals the source of high-iron chondrites but also explains the formation mechanism of near-Earth asteroids through the evolutionary process of the Fuxian family [2] - The methodology developed in this study will be applied to analyze multi-color photometric and spectral data from the upcoming survey space telescope, aiming to uncover more secrets of asteroid families [2]