inspired
发表于 2025-3-25 07:22:19
Instrumentation for Ground-Based Optical AstronomyPresent and Future T
nitroglycerin
发表于 2025-3-25 08:31:29
Instrumentation for Ground-Based Optical Astronomy978-1-4612-3880-5
鞠躬
发表于 2025-3-25 11:52:46
Conference proceedings 1988 effect. On the contrary, the new instruments and ideas for new instruments described in this book make it clear that the rate of progress has not diminished, and that this subject is still as exciting and productive as ever. Instrumentation for Ground-Based Optical Astronomy was chosen as the theme
osculate
发表于 2025-3-25 17:44:20
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motivate
发表于 2025-3-25 23:03:29
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袖章
发表于 2025-3-26 01:06:07
A Comparison of Holographic and Echelle Gratings in Astronomical Spectrometrygraph over parts of the spectral range. In regions where high-transmittance filters were available the echelle beat the holographic grating by factors up to 2.2 at the peaks of the echelle’s blaze profile. The holographic grating’s efficiency does not compete favorably with that of the echelle when
correspondent
发表于 2025-3-26 06:14:45
What’s New in Gratings?y due to the resurrection of concave grating mounts. These had enjoyed a poor reputation in this field because of inherent imaging aberrations, which could now be sufficiently compensated for through holographic tricks. For ground-based astronomical instruments, however, there seems little advantage
强行引入
发表于 2025-3-26 10:42:53
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处理
发表于 2025-3-26 15:40:34
Aspects of the Optical Design of the AAT and WHT Echelle Spectrographsschel telescopes (the AAT and the WHT). The results have produced peculiar characteristics not seen before in this type of instrument. For example, a variable collimated beam was adopted and an image slicer is being implemented in the normal observing mode. The cross disperser and the procedure for
expound
发表于 2025-3-26 20:52:40
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