نتایج جستجو برای: z frame
تعداد نتایج: 247522 فیلتر نتایج به سال:
The existence of massive galaxies with strongly suppressed star formation at z ∼ 2.3, identified in a previous paper, suggests that a red sequence may already be in place beyond z = 2. In order to test this hypothesis, we study the rest-frame U − B color distribution of massive galaxies at 2 < z < 3. The sample is drawn from our near-infrared spectroscopic survey for massive galaxies. The color...
We review some results concerning the properties of static, spherically symmetric solutions of multidimensional theories of gravity: various scalar-tensor theories and a generalized string-motivated model with multiple scalar fields and fields of antisymmetric forms associated with p-branes. A Kaluza-Klein type framework is used: there is no dependence on internal coordinates but multiple inter...
We present an investigation of the clustering of the faint (i′AB < 24.5) field galaxy population in the redshift range 0.2 < z < 1.2. Using 100,000 precise photometric redshifts extracted from galaxies in the four ultra-deep fields of the Canada-France Legacy Survey, we construct a set of volume-limited galaxy samples. We use these catalogues to study in detail the dependence of the amplitude A...
Galaxies’ rest-frame ultraviolet (UV) properties are often used to directly infer the degree to which dust obscuration affects the measurement of star formation rates. While much recent work has focused on calibrating dust attenuation in galaxies selected at rest-frame ultraviolet wavelengths, locally and at high-z, here we investigate attenuation in dusty, star-forming galaxies (DSFGs) selecte...
The decrease, since z=1, of the rest-frame UV luminosity density is related to global changes in morphology, color and emission lines properties of galaxies. This is apparently followed by a similar decrease of the rest-frame IR luminosity density. I discuss the relative contribution from the different galaxy morphological types to the observed evolution. The main contributors are compact galax...
In this paper a new method is presented to increase the frame rate of CGI (computer generated images) applications by means of image prediction. This method is based on Kalman filtering for the prediction of the new viewpoint position. The method processes two consecutive input images and the dedicated z-buffer content, which are computed by the graphics hardware, for the prediction of the next...
In the space U of cubic forms of surfaces, regarded as a G-space and endowed with a natural invariant metric, the ratio of the volumes of those representing umbilic points with negative to those with positive indexes is evaluated in terms of the asymmetry of the metric, defined here. A connection of this ratio with that reported by Berry and Hannay (1977) in the domain of Statistical Physics, i...
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