标题： 亮2MASS星系的结构：Ks波段面亮度轮廓的2D拟合 显示英文标题

标题： Structure of Bright 2MASS Galaxies: 2D Fits to the Ks-band Surface Brightness Profiles

摘要： 双子星全天巡天（2MASS）史无前例的天空覆盖率和测光一致性为我们深入了解我们所在的局部宇宙（z<0.1）中的星系提供了丰富的资源。 对近邻星系物理结构的全面描述对于星系演化和结构形成理论与观测研究至关重要。 我们已经开始通过使用GIM2D对2MASS的10,000个明亮星系（10<Ks<11）的二维表面亮度分布进行多分量模型拟合，以量化描述它们的内部结构和形态。 从我们在RC3中随机选取的77个星系上进行的蒙特卡罗测试表明，由于天空不确定度导致的模型推导结构参数误差通常小于10%。 显示英文摘要

摘要： The unprecedented sky coverage and photometric uniformity of the Two Micron All Sky Survey (2MASS) provides a rich resource for obtaining a detailed understanding of the galaxies populating our local (z<0.1) Universe. A full characterization of the physical structure of nearby galaxies is essential for theoretical and observational studies of galaxy evolution and structure formation. We have begun a quantified description of the internal structure and morphology of 10,000 bright (10<Ks<11) 2MASS galaxies through multi-component model fits to the 2D surface brightness profiles using GIM2D. From our initial Monte Carlo tests on 77 galaxies drawn at random from the RC3, we find that the model derived structural parameter errors due to sky uncertainies are typically less than 10%.