The fundamental science question we address in this research concerns the evolution of asteroid families; more specifically, does asteroid (6) Hebe have a genetic family, and does this genetic family provide insight into the structure of (6) Hebe? Hebe has been identified dynamically and spectroscopically as the H-chondrite parent body. The H chondrites exhibit a range of metamorphisms suggesting deep excavation from the parent body, an event expected to form a family. Previously, several small H-type asteroids were identified near Hebe, supporting this possibility, but they were insufficient to test its existence. We initiated a limited spectroscopic investigation of 36 asteroids near Hebe between 2009 and 2018 using the NASA Infrared Telescope Facility’s SpeX instrument to test for the presence of a small dynamical family of H-chondrite composition. Of our 36 asteroid spectra, 16 were featureless, 1 contained a single absorption feature, 16 exhibited two absorption features, and 3 were deemed unusable due to poor quality. Our interpretation of asteroid spectra with two absorption features began with the extraction and interpretation of band centers and the band area ratio, which we used to determine the surface mineralogy. In this paper, we report on the nine asteroids that were determined to have an H-chondrite mineralogy. We conclude that asteroids with H-chondrite mineralogies reside on both sides of the 3:1 Kirkwood gap, and this implies that (6) Hebe does have an old-dispersed family, as well as provide spectral evidence for Bottke’s hypothesis of resonance jumping.

我们在这项研究中要解决的基础科学问题涉及小行星家族的进化。更具体地说，小行星（6）Hebe是否具有遗传家族，并且该遗传家族是否提供对（6）Hebe的结构的了解？赫伯已经被动态地和光谱地鉴定为H-球粒陨石的母体。H球粒陨石显示出一定的变质作用，暗示着从母体中进行了深挖，预计这一事件将形成一个家族。以前，在赫比附近发现了几颗小型H型小行星，支持了这种可能性，但它们不足以测试其存在。在2009年至2018年之间，我们使用美国国家航空航天局红外望远镜设施的SpeX仪器对赫比附近的36个小行星进行了有限光谱研究，以测试是否存在小型动态的H球粒陨石成分。在我们的36个小行星光谱中，有16个是无特征的，有1个具有单个吸收特征，有16个具有两个吸收特征，还有3个由于质量差而被认为不可用。我们对具有两个吸收特征的小行星光谱的解释是从带中心和带面积比的提取和解释开始的，我们用它们来确定表面矿物学。在本文中，我们报告了被确定具有H球粒陨石矿物学的9个小行星。我们得出结论，在3：1柯克伍德间隙的两侧都存在具有H球粒矿物的小行星，