标题： 重新审视第四颗微引力透镜行星 显示英文标题

标题： The Fourth Microlensing Planet Revisited

摘要： 第四颗微引力透镜行星，又称为OGLE-2005-BLG-169Lb，是由美国、新西兰、波兰和英国的天文学家在2005-2006年期间发现的。最近，该结果由哈勃太空望远镜和凯克天文台确认。OGLE-2005-BLG-169Lb是首颗获得这种确认的微引力透镜行星。这里以历史背景描述了它的发现和确认过程。 显示英文摘要

摘要： The fourth microlensing planet, otherwise known as OGLE-2005-BLG-169Lb, was discovered by a collaboration of US, NZ, Polish and UK astronomers in 2005-2006. Recently the results were confirmed by the Hubble Space Telescope and by the Keck Observatory. OGLE-2005-BLG-169Lb is the first microlensing planet to receive such confirmation. Its discovery and confirmation are described here in an historical context.