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

这一合作方案汇集了两位研究人员的理论和观测技能，对L矮星进行了研究，这些矮星是相对较冷的棕矮星。他们将使用大约30颗L矮星的光学和红外光谱和光度学来约束和修正低质量恒星物体的大气和演化模型。他们将使用来自Spitzer IRAC和2MASS调查的档案数据，以及来自智利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、质量和金属丰度的精确值，并更好地理解为什么许多年轻的棕矮星并不像模型预测的那样发光。广泛的影响包括对来自纽约城市大学系统中代表性不足群体的本科生进行研究培训，支持AstroBetter博客，制作天文馆视频，以及通过美国自然历史博物馆开展的其他公共推广活动。

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.