| タイトル | Lapex: A Phoswich balloon experiment for hard X-ray astronomy |
| 本文（外部サイト） | http://hdl.handle.net/2060/19850026643 |
| 著者（英） | Basin, A.; Dalfiume, D.; Poulsen, J. M.; Costa, E.; Landini, G.; Frontera, F.; Silvestri, S.; Morelli, E.; Franceschini, T.; Rubini, A. |
| 著者所属（英） | Consiglio Nazionale delle Ricerche |
| 発行日 | 1985-08-01 |
| 言語 | eng |
| 内容記述 | Satellite and balloon observations have shown that several classes of celestial objects are hard ( 15 keV) energy band with a sensitivity of approx 10 mCrab has been performed with the UCSD/MIT instrument (A4) on board the HEAO 1 satellite. About 70 X-ray sources were detected, including galactic and extragalactic objects. Hard X-ray emission has been detected in the Galaxy from X-ray pulsars. Extragalactic sources of hard X-ray emission include clusters of galaxies, QSOs, BL Lac objects, Seyfert galaxies. The essential characteristics of the Large Area Phoswich Experiment (LAPEX) for crowded sky field observations are described. It has: (1) a broad energy band of operation (20-300 keV); (2) a 3 sigma sensitivity of about 1 mCrab in 10,000 s of live observing time; and (3) imaging capabilities with an angular resolution of about 20'. |
| NASA分類 | SPACE RADIATION |
| レポートNO | 85N34956
OG-9.3-1 |
| 権利 | No Copyright |
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