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The SuperMACHO Microlensing Survey

机译:超级扫描微溶剂调查

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We present the first results from our next-generation microlensing survey, the SuperMACHO project. We are using the CTIO 4m Blanco telescope and the MOSAIC imager to carry out a search for microlensing toward the Large Magellanic Cloud (LMC). We plan to ascertain the nature of the population responsible for the excess microlensing rate seen by the MACHO project Our observing strategy is optimized to measure the differential microlensing rate across the face of the LMC We find this derivative to be relatively insensitive to the details of the LMC's internal structure but a strong discriminant between Galactic halo and LMC self lensing. In December 2003 we completed our third year of survey operations. 2003 also marked the first year of real-time microlensing alerts and photometric and spectroscopic followup. We have extracted several dozen microlensing candidates, and we present some preliminary light curves and related information. Similar to the MACHO project, we find SNe behind the LMC to be a significant contaminant - this background has not been completely removed from our current single-color candidate sample Our follow-up strategy is optimized to discriminate between SNe and true microlensing
机译:我们目前从我们的下一代微透镜调查,SuperMACHO项目的第一批成果。我们使用CTIO4米布兰科望远镜和MOSAIC成像仪开展向大麦哲伦星云(LMC)微引力透镜的搜索。我们计划以确定负责对马乔项目我们的观测策略看作多余的微引力透镜率人口的性质进行了优化测量通过LMC的面貌差的微引力透镜率,我们发现这种衍生物是相对不敏感的细节LMC的内部结构,但是银晕和LMC自我透镜之间有很强的判别。 2003年12月,我们完成调查工作的第三个年头。 2003也标志着实时微透镜警报和光度和光谱随访的第一年。我们提取了数十个微透镜的候选人,并且我们提出了一些初步的光变曲线和相关信息。具有大男子气概的项目相似,我们发现了超新星的背后LMC是一个显著污染物 - 这一背景下尚未完全从我们目前的单色候选样本我们的后续策略中移除优化和超新星的真实微透镜之间的区分

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