A Survey of Circumstellar Disks and Young Stars with Adaptive Optics

克洛斯，夏威夷莱尔德大学马诺阿AST97-31576，克洛斯博士和他的合作者将在孤立的暗云和星系团环境中研究年轻恒星周围的星盘。他们将使用夏威夷大学开发的新的自适应光学系统进行观测，实现红外衍射限制图像。他们的观测计划包括各种年轻的恒星物体，以采样一系列环境：金牛座-金牛座暗云中的T金牛座恒星，大质量的年轻赫比格Ae/Be恒星，以及附近的OB协会。探测到圆盘(估计约为50%)的观测将有助于确定圆盘的年龄、质量和吸积率。他们还将对散射的光盘图像进行建模，以限制尘埃的性质。他们的最终目标是使用直接成像和建模相结合的方法来阐明恒星及其行星系统在尘土飞扬的分子云核心中凝聚的过程。

Close, Laird University of Hawaii Manoa AST 97-31576 Dr. Close and co-PI's will study the circumstellar disks around young stars in isolated dark clouds and cluster environments. They will use the new adaptive optics system developed at the University of Hawaii for their observations, achieving diffraction-limited images in the infrared. Their observational program includes a variety of young stellar objects to sample a range of environments : T Tauri stars in the Taurus-Auriga dark cloud, massive young Herbig Ae/Be stars, and nearby OB associations. Observations that detect disks (estimated to be roughly 50%) will permit determinations of the disk age, mass, and accretion rates. They will also model the scattered light disk images to place constraints on the nature of the dust. Their ultimate goal is to use a combination of direct imaging followed by modeling to elucidate the processes by which stars and their planetary systems condense out of the dusty cores of molecular clouds.