منابع مشابه
What AO can Deliver to the Astronomer Today { and what an Astronomer Would Like to Find in the Software Toolbox
Over the past few years high-resolution imaging with adaptive optics has become an important technique with a wide variety of applications in Solar System physics, stellar astronomy, and extragalactic research. Much of the recent progress can be attributed to a few key factors: the growing number of astronomers who have access to user-friendly AO systems, improvements in the limiting magnitude ...
متن کاملTranslating a Star over a Point Set
We consider the problem of placing a star ~ R on a set S of n points in the plane in order to maximize a given objective function. A star ~ R is a set ofm rays {r1, . . . , rm} in R, emanating from a point p such that the angle between two consecutive rays is 2π/m. The cone defined by two consecutive rays with apex p is k-occupied if it contains at least k points of S. We design algorithms to c...
متن کاملProfessor Simon Newcomb as an Astronomer.
MSS. intended for publication and books, etc., intended for review should be sent to the Editor of SCIENCE, Garrison-onHudson, N. Y. PROIFESSOR SIMON NEWCOMB AS AN ASTRONOMER PROFESSOR NEWCOMB has narrated at considerable length the personal incidents of his scientific career in his book "The Reminiscences of an Astronomer," and to that source the reader desirousi of knowing them may be referre...
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Quantitative analysis for the risk of human cancer from the ingestion of inorganic arsenic has been based on the reported cancer mortality experience in the blackfoot disease (BFD) -endemic area of southwest Taiwan. Linear regression analysis shows that arsenic as the sole etiologic factor accounts for only 21% of the variance in the village standardized mortality ratios for bladder and lung ca...
متن کاملOperational and astronomer support issues in real life AO systems
Both the ADONIS (at ESO) and PUEO (at CFHT) adaptive optics systems have been in general use for several years, totalizing over 400 nights of scheduled observing time. They are routinely producing near-infrared diffraction-limited images under reasonable seeing conditions and a significant number of papers have now been published reporting astrophysical results obtained with adaptive optics. In...
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ژورنال
عنوان ژورنال: Nature
سال: 2002
ISSN: 0028-0836,1476-4687
DOI: 10.1038/415250b