High Energy Transient Experiment

越来越明显的是，宇宙伽马射线暴（cgb）的起源只能通过识别其他能量范围内的对应爆发来确定。迄今为止，略多于六个的cgb的位置被确定为10平方角分或更好。虽然伽玛射线天文台的爆发和瞬态实验大大增加了已知爆发源的数量，并提供了它们在天空中分布的基本新信息，但它提供的源位置精度最多在-1度范围内。红外、光学和软x射线搜索还没有发现任何令人信服的cgb候选者。即使不考虑这些观测所传达的关于CGB源物理的重要信息，它们原则上也可以起到重要的作用，即弥合相对较大（大小为几弧分钟）的伽玛射线误差盒和非常小（大小为几弧秒）的盒子之间的差距，这些盒子需要进行更深入的搜索（bb0 25等），以寻找极其微弱的静态爆发对应体。对于迄今为止的所有搜索，关于可能的固有运动，假定的光学和伽马射线发射与光学瞬变事件的时间结构之间的关系的问题仍然没有答案。高能瞬变实验项目是国际组织的，目的是达成一种综合方法来解决这些问题以及其他关于cgb和其他天文瞬变的基本问题。考虑到这些情况，本项目促进载有三种科学仪器的国际特定卫星；一个全向伽马射线光谱仪（法国- cesr），一个宽视场x射线监测器（日本- RIKEN）和一个紫外瞬态相机阵列。（美国-麻省理工学院）这颗卫星定于1995年4月至5月由美国宇航局飞马座火箭发射。为了推广这颗卫星，我们必须在国际上进行各种信息交流。我们通过会议和测试来调整协作和仪器的接口。少

It has become increasingly apparent that origin of cosmic gamma-ray bursts (CGBs) can only be determined by identifying burster counterparts in other energy ranges. To date, slightly over half a dozen CGBs have positions determined to 10 square arc-minutes or better. Although the burst and transient experiment on the Gamma-Ray Observatory are greatly increasing the number of known burst sources and provide fundamentally new information on their distribution over the sky, the accuracy of source locations it provides to be at best in the -1 degree range. Infrared, optical and soft X-ray searches have not revealed any convincing candidates for these CGBs. Even apart from the important information which such observations convey about the physics of CGB sources, they can in principle serve the important function of bridging the gap between the relatively large (-several arc-minutes in size) gamma-ray error boxes and the very small (-a few arc-seconds in size) boxes needed to conduct deep op … More tical searches (> 25th magnitude) for the exceedingly faint quiescent burster counterparts. For all searches to date, questions concerning possible proper motion, the association between the putative optical and gamma-ray emission and the time structure of the optical transient event, remain unanswered. The high energy transient experiment project was internationally organized to reach an integrated approach to resolving these and other fundamental questions about CGBs and other astronomical transients.Considering these situations, this project promotes the international specific satellite which contains three scientific instruments ; an omnidirectional gamma-ray spectrometer (France-CESR), a wide-field X-ray monitor (Japan- RIKEN), and an ultraviolet transient camera array. (USA-MIT) This satellite is scheduled to be launched by NASA Pegasus rocket in April-May, 1995. We have to communicate various information internationally to promote this satellite. We have meetings and do tests to adjust collaboration and interfaces of instruments. Less