Collaborative Research: Deciphering Brown Dwarf Spectra: Disentangling Temperature, Age, Metallicity, Cloud Signatures

合作研究：破译褐矮星光谱：解开温度、年龄、金属丰度、云特征

• 批准号: 1313278
• 负责人: Kelle Cruz
• 金额: $ 27.77万
• 依托单位: CUNY Hunter College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1313278&HistoricalAwards=false
• 关键词: Collaborative; Research; Deciphering; Brown; Dwarf

This collaborative proposal brings together the theoretical and observational skills from two researchers to conduct a study of L-dwarfs, which are relatively cool brown dwarf stellar objects. They will use optical and infrared spectroscopy and photometry of approximately thirty L- dwarfs to constrain and revise models of the atmospheres and evolution of low mass stellar objects. They will use archive data from Spitzer IRAC and 2MASS surveys, and new data from a 1.3-m telescope in Chile and 2.4-m MDM telescope. They will focus on determining accurate values of effective temperature, mass and metallicity of the dwarfs, and to better understand why many young brown dwarfs are not as luminous as models predict.Broader impacts include the research training of undergraduate students from underrepresented groups from the City University of New York system, supporting the AstroBetter blog, producing planetarium videos and other public outreach activities through the American Museum of Natural History.

这项合作计划汇集了两位研究人员的理论和观测技能，对L型矮星进行研究，L型矮星是相对较冷的棕矮星恒星。 他们将使用光学和红外光谱学以及大约30颗L型矮星的测光来约束和修正低质量恒星天体的大气和演化模型。他们将使用斯皮策IRAC和2MASS调查的存档数据，以及智利1.3米望远镜和2.4米MDM望远镜的新数据。他们将专注于确定矮星的有效温度、质量和金属丰度的准确值，并更好地理解为什么许多年轻的棕矮星不像模型预测的那样明亮。更广泛的影响包括对来自纽约城市大学系统代表性不足的群体的本科生进行研究培训，支持AstroBetter博客，通过美国自然历史博物馆制作天文馆录像和其他公共宣传活动。