担心
发表于 2025-3-26 21:58:22
https://doi.org/10.1007/978-3-642-69614-5erture photometry). Often the field containing the source is extremely crowded, or the source is extended. We describe techniques that we have developed in order to follow changes in such sources, utilizing the technique of image subtraction. In this way the stable flux in a field can be subtracted
Hiatal-Hernia
发表于 2025-3-27 04:17:11
https://doi.org/10.1007/978-3-642-69614-5nity, therefore, than in the light curve of 0957+561, the gravitational lens that, until recently, had yielded frustratingly inconsistent determinations of its lag. We discuss the difficulties in measuring deviations from Gaussianity in weakly nonstationary processes (such as 1/. noise or random wal
Freeze
发表于 2025-3-27 05:26:24
https://doi.org/10.1007/978-3-642-69614-5avelengths constitutes the best proof that the object is indeed a gravitational lens, because microlensing and other subtle effects cause the spectra, colors and other instantaneous properties of the multiple images of a lensed quasar to be not strictly identical. Observation of a random pattern of
Pelvic-Floor
发表于 2025-3-27 10:43:38
https://doi.org/10.1007/978-3-642-69614-5, enabled mapping of the gas distribution around the central black hole, and are starting to resolve the continuum source structure. This review describes the recent and successful campaigns of the International AGN Watch consortium, outlines the theoretical background of reverberation mapping and t
指数
发表于 2025-3-27 17:19:20
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cylinder
发表于 2025-3-27 19:02:20
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obsession
发表于 2025-3-28 00:51:55
https://doi.org/10.1007/978-3-658-11380-3ar planets will improve dramatically our understanding of the formation of planets and planetary systems, which was based till the last decade on the sole example of the solar system. Nevertheless, no extra-solar planet was convincingly detected until recently. This is so because planets are very fa
枯燥
发表于 2025-3-28 03:24:34
Zusammenfassung und Diskussion,ding. This process is examined in the broad context of scientific measurement in general, in the context of quantum mechanics, along with the contruction of models to match the behavior observed. The relationship between classical and quantum phenomena is placed in a new framework where each is seen
ADAGE
发表于 2025-3-28 08:34:28
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acrimony
发表于 2025-3-28 11:19:33
,Analyse binärer abhängiger Variablen, collected by the AGN WATCH, using more data, to obtain reverberation results for more objects, one will have to rely on irregularly sampled lightcurves. Previous analyses of irregularly sampled observations suggest that it is possible to obtain results from such data sets. To evaluate the statistic