标题： 银河系核球巨星：研究恒星和银河系演化 I. 斯皮策 IRAC 和 MIPS 源目录 显示英文标题

标题： Galactic bulge giants: probing stellar and galactic evolution I. Catalogue of Spitzer IRAC and MIPS sources

摘要： 目标：我们旨在测量银河系核球中多个银河中心半径处统计上较大的恒星样本的质量损失率和光度。 之前对核球的红外巡天灵敏度相当有限，因此关于晚期恒星演化的基本问题，例如在红巨星分支上显著质量损失开始的阶段及其与基本恒星性质的依赖关系，仍未得到解答。 我们旨在为这些问题提供证据和答案。 方法：为此，我们使用斯皮策空间望远镜上的IRAC和MIPS成像仪器，以前所未有的灵敏度观测了核球及其附近七个15乘15角分^2的区域。 在每个区域中，检测到了数以万计的点源。 结果：在这份基于此数据集的第一篇论文中，我们展示了观测结果、数据减少过程、源的最终目录，以及与其他中期红外巡天对银河系核球的详细比较，以及与理论等时线的比较。 我们发现与其他巡天和等时线总体上有良好的一致性，这支持了我们目录的高质量。 显示英文摘要

摘要： Aims: We aim at measuring mass-loss rates and the luminosities of a statistically large sample of Galactic bulge stars at several galactocentric radii. The sensitivity of previous infrared surveys of the bulge has been rather limited, thus fundamental questions for late stellar evolution, such as the stage at which substantial mass-loss begins on the red giant branch and its dependence on fundamental stellar properties, remain unanswered. We aim at providing evidence and answers to these questions. Methods: To this end, we observed seven 15 times 15 arcmin^2 fields in the nuclear bulge and its vicinity with unprecedented sensitivity using the IRAC and MIPS imaging instruments on-board the Spitzer Space Telescope. In each of the fields, tens of thousands of point sources were detected. Results: In the first paper based on this data set, we present the observations, data reduction, the final catalogue of sources, and a detailed comparison to previous mid-IR surveys of the Galactic bulge, as well as to theoretical isochrones. We find in general good agreement with other surveys and the isochrones, supporting the high quality of our catalogue.