无法解释
发表于 2025-3-25 07:15:41
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蒙太奇
发表于 2025-3-25 09:49:30
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nautical
发表于 2025-3-25 11:44:02
Laser Guide Star Advanced Concepts: Tilt Problem,ms that the LGS community is faced with. Here a number of approaches are discussed in some detail. While there is no evidence that some specific technique is clearly better than the others, it is pointed out that more investigation is still required to assess the performance and to eventually point
现代
发表于 2025-3-25 19:12:23
,The Tilt Problem — Multiwavelength,an be simulated as a two-dimensional prism whose angle continuously varies. The typical characteristic time of the tilt varies from a few milli-arcsecs (mas) to a few hundred mas depending on the wavelength and on the seeing. This is significantly longer than the round trip time of light to the meso
BLINK
发表于 2025-3-25 23:04:02
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MURKY
发表于 2025-3-26 01:52:48
Ground Based Astronomy with Adaptive Optics,ground based natural guide star systems is fairly well understood, and laser beacon development has made enormous progress also. For the first time, a substantial body of scientific results from adaptive optics is in the astronomical literature. This is an excellent opportunity to review the progres
Debrief
发表于 2025-3-26 04:33:40
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Hectic
发表于 2025-3-26 10:36:50
Measuring Asteroids with Adaptive Optics,al ellipsoid asteroid, as well as the point spread function, from the convolution of the two. In turn, the formulation relating these observables as a function of rotation back to the underlying ellipsoid is recounted, which allows the determination of the triaxial dimensions and orientation of the
–DOX
发表于 2025-3-26 15:26:03
The Environments of Young Stars,rlying star formation. I therefore intend to spend at least half of my time giving background information which I feel is vital if one is to appreciate the important role that adaptive optics (AO) can play in understanding not only how stars form but also the way in which young stars interact with t
冒失
发表于 2025-3-26 18:10:07
Distant (Radio) Galaxies: Probes of Galaxy Formation,only 10 % of its present value. In this contribution, I will discuss two classes of objects that are known to be present at these extreme distances: the UV-dropout galaxies, which are likely to evolve into normal present day galaxies, and the powerful distant radio galaxies, which seem to be the pre