RUI: Ozone in the Middle Atmosphere of Mars; Global Maps Throughout the Year

光学引力透镜实验(OGLE)经历了一次重大升级，从一台2000 x 2000 CCD相机(OGLE-II)升级到了一台马赛克8000 x 8000 CCD相机(OGLE-III)。新系统于2001年夏季投入使用，预计到2002年将全面精简，实时检测微透镜事件。1.3米的OGLE望远镜位于智利的拉斯坎帕纳斯天文台。使用OGLE-II，帕钦斯基博士和他的同事们每年探测到大约170次微透镜事件。有了Ogle-III和新的软件，他们预计每年可以检测到多达1000次活动。这一高速率实际上保证了对木星质量行星和恒星质量黑洞的探测。同样的数据也将被搜索以寻找行星凌日。几乎所有的OGLE-II数据(1997-2000)现在都可以在WWW和DAT上以高度压缩的格式获得：1Terra字节的原始CCD图像已被减少到10 GB以下。档案包括银河系凸起、大麦哲伦星云(LMC)和小麦哲伦星云(SMC)约16平方度的高信噪比图像，以及约3000万颗不变恒星的光度测量。该小组预计，首先在24小时内，然后在拍摄ccd图像后的10分钟内，将Ogle-III探测到的大约100万颗变星的光度测量功能放在网上。OGLE数据将被用来研究我们银河系的结构，LMC和SMC的结构，以及确定更精确的距离尺度。

AST-0204908PaczynskiThe Optical Gravitational Lensing Experiment (OGLE) has undergone a major upgrade from a 2000 x 2000 CCD camera (OGLE-II) to a mosaic 8000 x 8000 CCD camera (OGLE-III). The new systembecame operational in the summer 2001, and it is expected to be fully streamlined, with a real time detection of microlensing events, by 2002. The 1.3 meter OGLE telescope is located at the Las Campanas Observatory in Chile. With the OGLE-II, Dr. Paczynski and his colleagues were detecting about 170 microlensing events per year. With the OGLE-III and new software, they expect to detect up to 1,000 events per year. This high rate virtually guarantees a detection of Jupiter mass planets and stellar mass blackholes. The same data will be searched for planetary transits. Almost all OGLE-II data (1997-2000) are now available on WWW and on DAT, in a highlycompressed format: 1 Terra Byte of original CCD images has been reduced to less than 10 GB.The archive includes high signal-to-noise images of about 16 square degrees in the Galactic Bulge, the Large Magellanic Cloud (LMC), and the Small Magellanic Cloud (SMC), and the photometry of about 30 million non-variable stars. The group expects to make the photometry of about one million variable stars detected by OGLE-III available on-line, first within 24 hours, and some time later within 10 minutes of taking CCD images. OGLE data will be used to study the structure of our Galaxy, the structure of the LMC and SMC, as well as to determine ever more accurate distance scale.******