U.S.-Australia Cooperative Research: The MACHO Project; A Search for Baryonic Dark Matter

该奖项支持美国团队三年以上的访问， 查尔斯·R博士阿尔科克，蒂莫西·阿克塞尔罗德，大卫 劳伦斯·利弗莫尔的班尼特、肯姆·库克和朴惠淑 国家实验室，和博士金格里斯特，扫罗珀尔马特，和 粒子天体物理中心的克里斯托弗·斯塔布斯， 加州伯克利大学，与肯博士合作 弗里曼，布鲁斯彼得森，彼得奎因，和亚历克斯罗杰斯的 澳大利亚斯特罗姆洛山和赛丁泉天文台 国立大学。 调查小组正在研究 一个专门的系统，他们将进行一个明确的 寻找被称为MACHO（大规模紧凑型）的大质量物体 晕天体，如褐矮星和彗星）， 可能包括暗物质的晕 银河系 在“标准的”大爆炸核合成中， 理论认为宇宙中存在着重子暗物质 这一事项可载于MACHO。 研究人员将对多达1000个天体进行光度测量， 每颗麦哲伦星云（或银河系膨胀）恒星 四年的夜晚，为了检测偶尔的 引力微透镜放大了这些恒星 效果

This award supports visits over three years by a U.S. team, consisting of Drs. Charles R. Alcock, Timothy Axelrod, David Bennett, Kem Cook, and Hye-Sook Park of Lawrence Livermore National Laboratory, and Drs. Kim Griest, Saul Perlmutter, and Christopher Stubbs of the Center for Particle Astrophysics, University of California Berkeley, to collaborate with Drs. Ken Freeman, Bruce Peterson, Peter Quinn, and Alex Rodgers of the Mount Stromlo and Siding Spring Observatories, Australian National University. The team of investigators is developing a dedicated system with which they will conduct a definitive search for massive objects known as MACHOs (Massive Compact Halo Objects, such as brown dwarfs and Jupiters), which plausibly might comprise the dark matter in the halo of the Milky Way galaxy. In "standard" Big-Bang nucleosynthesis theory, the presence in the universe of some baryonic dark matter is required: this matter could be contained in MACHOs. The investigators will make photometric measurements on up to three million Magellanic Cloud (or Galactic Bulge) stars each night for four years in order to detect the occasional amplification of these stars by the gravitational microlens effect.