冬眠
发表于 2025-3-30 10:58:11
X-ray astronomy: energies from 0.1 keV to 100 keV,nd dispersing X-rays. The use of CCDs and cryogenic detectors for non-dispersive spectroscopy is also discussed. The present state of the art in the topic is presented through the description of several recent and current space missions in both the solar and cosmic fields.
adhesive
发表于 2025-3-30 12:28:40
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Innocence
发表于 2025-3-30 19:23:21
High-accuracy positioning: astrometry,ircumstances, such as additive noise and finite pixel size. Its application is discussed in relation to different space-astrometry techniques including grid modulation, direct imaging, and interferometry.
itinerary
发表于 2025-3-30 22:07:53
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Strength
发表于 2025-3-31 02:47:32
The visible and near-infrared domain,s of view, dynamic range and complete spectral coverage. This chapter discusses the inherent limitations of ground-based astronomy that are overcome by space observations and lists some of the spacecraft that have demonstrated these advantages for scientific study.
破译密码
发表于 2025-3-31 08:11:36
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placebo-effect
发表于 2025-3-31 13:09:53
Imaging through Compton scattering and pair creation,is purpose, the omni-directionally sensitive BATSE instrument used its capability to monitor hard X-ray sources > 20 keV by means of Earth occultation). Since 2008 the high-energy telescope . performs continuous deep all-sky surveys at gigaelectronvolt energies. Finally, the outlook for future Compton and pair-creation telescopes is given.
Antagonism
发表于 2025-3-31 15:11:37
Far-infrared imaging and spectroscopic instrumentation,ission, ., launched in May 2009. This mission also makes use of heterodyne techniques for very high spectral resolution. We review the principle of heterodyne detection and briefly describe the HIFI instrument on . and how it takes the subject of high-resolution spectroscopy into a new era.
incredulity
发表于 2025-3-31 19:30:43
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originality
发表于 2025-3-31 23:37:15
Interferometric imaging from space,ometry concern path length control, formation flying, fringe tracking, and specialized optical components. Concepts for space-borne interferometers have been developed covering a wide range of scientific applications and wavelength regimes.