Faculty Award for Women - An Atomic Hydrogen (HI) Image of the Universe

这个女科学家和工程师学院奖是颁给哥伦比亚大学天文学系的杰奎琳·h·凡·戈尔科姆博士的。美国国家科学基金会女科学家和工程师教师奖认可获奖者在教学和学术方面的高质量记录，以及对科学研究，学术专业和未来科学家教育的持续重大贡献的潜力。研究的重点将放在星系的形成和演化以及宇宙的大尺度结构上。这些问题将通过在星系内部和星系之间，在孤立的星系，相互作用的星系，小的星系群，星系团以及在可能根本没有星系的区域，空洞中拍摄氢原子的图像来探索。我们今天所知道的宇宙的大尺度结构，有大的细丝和薄片，几乎完全是基于在光学波长下观察到的高亮度星系。有偏差的星系形成预示着亮度（明亮的星系）和质量（暗物质）之间的分离。矮星系被认为分布更均匀，应该是暗质量的更好的示踪剂。这些矮星可能太过微弱，无法被列入光学目录。它们将在频谱的无线电区域被观测到。其他类似的调查将解决稍微不同的问题，包括对九头蛇星系团的有限体积调查，以及对牧夫座虚空中所有已知光学星系的HI观测。九头蛇巡天将把对富含气体星系空间分布的测定扩展到一个非常高密度的区域。更有趣的是将九头蛇和处女座星系的HI形态（已经完成）与牧夫座星系的HI形态进行比较。这将为我们研究环境对星系的影响提供独特的材料。将有几位合作者和研究生参与这些项目。

This Faculty Award for Women Scientists and Engineers is made to Dr. Jacqueline H. Van Gorkom in the Department of Astronomy at Columbia University. The NSF Faculty Award for Women Scientists and Engineers recognizes the high quality of the awardee's record in teaching and scholarship as well as the potential for continued significant contributions to scientific research, the academic profession, and the education of future scientists. The emphasis of the research will be on the formation and evolution of galaxies and the large scale structure of the universe. These issues will be explored by making images of the atomic hydrogen in and between galaxies, in isolated galaxies, interacting galaxies, small groups of galaxies, clusters of galaxies and in regions where there might be no galaxies at all, the voids. The large-scale structure of the universe as we know it today, with large filaments and sheets is based almost entirely on high luminosity galaxies, seen at optical wavelengths. Biased galaxy formation predicts a separation between luminosity (bright galaxies) and mass (dark matter). Dwarf galaxies are expected to be more uniformly distributed and should be a better tracer of the dark mass. These dwarfs could be too faint to be included in optical catalogs. They will be observed in the radio region of the spectrum. Other similar surveys which will address slightly different questions are a volume limited survey of the Hydra Cluster of galaxies and HI observations of all the optically known galaxies in the Bootes void. The Hydra survey will extend the determination of the spatial distribution of gas rich galaxies to a very high density region. Even more interesting will be a comparison of the HI morphology of the galaxies in Hydra and in Virgo (already completed) with those in the Bootes void. This will provide us with unique material on the effects of the environment on galaxies. There will be several collaborators and graduate students involved in the projects.