| タイトル | Toward Active X-ray Telescopes II |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120015758 |
| 著者（英） | Atkins, Carolyn; Trolier-McKinstry, Susan E.; Wilke, Rudeger H. T.; Zhang, William W.; Johnson-Wilke, Raegan L.; Lillie, Charles F.; Ramsey, Brian D.; Feldman, Charlotte H.; Button, Timothy W.; Davis, William N.; Saha, Timo T.; Cotroneo, Vincenzo; Reid, Paul B.; Ulmer, Melville P.; Aldroft, Thomas L.; Freeman, Mark D.; Willingale, Richard; Doel, Peter; Schwartz, Daniel A.; O'Dell, Stephen L.; Kolodziejczak, Jeffery J.; Michette, Alan G.; Sanmartin, Daniel Rodriguez; Gubarev, Mikhail V. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2012-08-12 |
| 言語 | eng |
| 内容記述 | In the half century since the initial discovery of an astronomical (non-solar) x-ray source, the sensitivity for detection of cosmic x-ray sources has improved by ten orders of magnitude. Largely responsible for this dramatic progress has been the refinement of the (grazing-incidence) focusing x-ray telescope. The future of x-ray astronomy relies upon the development of x-ray telescopes with larger aperture areas (greater than 1 m2) and finer angular resolution (less than 1.). Combined with the special requirements of grazing-incidence optics, the mass and envelope constraints of space-borne telescopes render such advances technologically challenging.requiring precision fabrication, alignment, and assembly of large areas (greater than 100 m2) of lightweight (approximately 1 kg m2 areal density) mirrors. Achieving precise and stable alignment and figure control may entail active (in-space adjustable) x-ray optics. This paper discusses relevant programmatic and technological issues and summarizes progress toward active x-ray telescopes. |
| NASA分類 | Astronomy |
| レポートNO | M12-2031
M11-1524
M12-2148 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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