RUI: Photometric Survey of Jovian Trojans

RUI：木星特洛伊木马的光度测量

• 批准号: 1212115
• 负责人: Linda French
• 金额: $ 25.65万
• 依托单位: Illinois Wesleyan University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-10-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1212115&HistoricalAwards=false
• 关键词: RUI; Photometric; Survey; Jovian; Trojans

This project comprises a systematic study of the Jovian Trojan Asteroids, which lead and trail Jupiter at its stable Lagrange points. The study will test or constrain models suggesting that the Trojans formed in situ and others suggesting they were scattered from greater heliocentric distances. The proposing team will use 4-color (BVRI) optical photometry to distinguish the major compositional groups known among the Trojans from each other, and from compositional groups in the main asteroid belt. They will obtain BVRI colors of up to 200 Trojans and time-resolved light curves of up to 75, bringing the number of well-determined Trojan light curves close to 200, and will test whether different compositional groups have different rotation parameters, indicating either differences in material strength or collisional history. The team plans to compare the properties of the Trojans with main belt asteroids, Cybeles and Hildas (neighboring groups on the outer edge of the main belt), Kuiper Belt objects, and cometary nuclei. This Research in Undergraduate Institutions project will directly involve undergraduate students in the research as well as support the dissertation of a graduate student at a collaborating institution. Some of these students will be women and/or members of underrepresented groups. The methods and results will be incorporated into undergraduate classes reaching up to 300 students per year taught by the Principal Investigator and collaborators, who are frequent speakers in public outreach forums.

该项目包括对木星特洛伊小行星的系统研究，特洛伊小行星在木星稳定的拉格朗日点引导和跟踪木星。这项研究将测试或限制表明特洛伊人在原地形成的模型，以及其他表明他们从更大的日心距离分散的模型。提议的团队将使用4色（BVRI）光学光度法来区分特洛伊人之间已知的主要组成群体，以及主要小行星带的组成群体。他们将获得高达200个特洛伊的BVRI颜色和高达75个的时间分辨光变曲线，使确定的特洛伊光变曲线的数量接近200，并将测试不同的组成组是否具有不同的旋转参数，表明材料强度或碰撞历史的差异。该团队计划将特洛伊人的属性与主带小行星，Cybeles和Hildas（主带外缘的相邻群体），柯伊伯带天体和彗星核进行比较。这个研究在本科院校项目将直接参与研究本科生，以及支持在合作机构的研究生的论文。其中一些学生将是妇女和/或代表性不足群体的成员。方法和结果将被纳入本科课程，每年由主要研究者和合作者教授多达300名学生，他们经常在公共宣传论坛上发言。