Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | NASA-CR-152253, LMSC-D676424-VOL-1 |
| 来源ID | NTRS_Document_ID: 19810009443 |
| Systems level feasibility study for the detection of extra-solar planets. Volume 1: Infrared interferometer (IRIS) known as the Stanford Concept | |
| [unavailable] | |
| 英文摘要 | A sensor system for the direct detection of extrasolar planets from an Earth orbit is evaluated: a spinning, infrared interferometer (IRIS). It is shuttle deployed, free flying, requires no on-orbit assembly and no reservicing over a design life of five years. The sensor concept and the mission objectives are reviewed, and the performance characteristics of a baseline sensor for standard observation conditions are derived. A baseline sensor design is given and the enabling technology discussed. Cost and weight estimates are performed; and a schedule for an IRIS program including technology development and assessment of risk are given. Finally, the sensor is compared with the apodized visual telescope sensor (APOTS) proposed for the same mission. The major conclusions are: that with moderate to strong technology advances, particularly in the fields of long life cryogenics, dynamical control, mirror manufacturing, and optical alignment, the detection of a Jupiter like planet around a Sunlike star at a distance of 30 light years is feasible, with a 3 meter aperture and an observation time of 1 hour. By contrast, major and possibly unlikely breakthroughs in mirror technology are required for APOTS to match this performance. |
| 英文关键词 | EXTRASOLAR PLANETS INFRARED ASTRONOMY INFRARED INTERFEROMETERS SPACEBORNE ASTRONOMY APERTURES COST ESTIMATES CRYOGENIC EQUIPMENT FEASIBILITY ANALYSIS MIRRORS SIGNAL TO NOISE RATIOS SPACEBORNE TELESCOPES SPACECRAFT ORBITS WEIGHT ANALYSIS |
| 出版年 | 1979 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19810009443 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/258790 |
| 推荐引用方式 GB/T 7714 | [unavailable]. Systems level feasibility study for the detection of extra-solar planets. Volume 1: Infrared interferometer (IRIS) known as the Stanford Concept,1979. |
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