Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | DE2007902619 |
| Floating into Thin Air. | |
| Hazi, A. U. | |
| 英文摘要 | On May 18, 2005, a giant helium balloon carrying the High Energy Focusing Telescope (HEFT) sailed into the spring sky over the deserts of New Mexico. The spindly steel and aluminum gondola that houses the optics, detectors, and other components of the telescope floated for 25 hours after its launch from Fort Sumner, New Mexico. For 21 of those hours, the balloon was nearly 40 kilometers above Earth’s surface--almost four times higher than the altitude routinely flown by commercial jet aircraft. In the upper reaches of Earth’s atmosphere, HEFT searched the universe for x-ray sources from highly energetic objects such as binary stars, galaxy clusters, and supermassive black holes. |
| 英文关键词 | Earth atmosphere X-ray sources Universe Binary stars Active galactic nuclei Galaxies Black holes Telescopes Balloons Optics Detectors |
| 出版年 | 2007 |
| 语种 | 英语 |
| 国家 | United States |
| URL | http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=59fd6a2b31c97d1d54ae3404 |
| 来源机构 | Technical Information Center Oak Ridge Tennessee |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/273565 |
| 推荐引用方式 GB/T 7714 | Hazi, A. U.. Floating into Thin Air.,2007. |
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