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Next: Accretion Disks with Up: StarsStellar Populations, Previous: Spectroscopic Analysis of . ... We present and discuss spatially resolved spectra of the accretion disk and the gas stream region as a function of distance from disk center, the spectrum of the uneclipsed light, and the radial temperature distribution in the ultraviolet. Keywords: Accretion disks, Cataclysmic variables . ... In this paper we report on the HST spectral mapping of the nova-like UX UMa. ...

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

Next: Implementation Design of the ASC Data Model . ... The AXAF Science Center (ASC) is using an ``open architecture'' approach to develop its data analysis environment. The system is a loosely coupled environment consisting of several major applications: visualizer, browser, fitter/modeler, as well as the data analysis tool-box. The ASC Data Model and Interprocess Communications (IPC) provide the data interface between applications and tools. ... Figure: Data analysis environment. ...

Environments of Active Close Binaries I: ER Vulpeculae A.G. Gunn and J.G. Doyle A&A, in press High­resolution observations of the eclipsing active close binary system ER Vulpeculae have revealed excess emission in the Hff, the Ca II IRT and the Mg I b lines and excess absorption in the He I D 3 line. ... Analysis has revealed that the emission arises in plage­like material cov­ ering perhaps half of the secondary's surface. ...

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Title: A Dark-Matter Spike at the Galactic Center? Authors: Piero Ullio , HongSheng Zhao , Marc Kamionkowski . ... Title: The Galaxy Environment of Quasars in the Clowes-Campusano Large Quasar Group at z~1.3 . ... Title: The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger . ... 16 matches for the search pattern galaxy environment . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+environment/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

Peremennye Zvezdy", . ... Star Name: . GSC 04372-00577, USNO-B1.0 1644-0054634, 2MASS 07272448+7425595 . ... Variability type: . ... The 2MASS infrared colors J = 12.295 (+/-0.020), H = 12.007 (+/-0.023), and Ks = 11.935 (+/-0.022) suggest an early G spectral type (Bessell Brett, 1988). We can use single-epoch 2MASS data to guess the spectral type since J, H, and K magnitudes were measured simultaneously and eclipses in W UMa type systems are often colorless. ... Data Source . ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

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... Among the objectives of Principal Components Analysis are the following. dimensionality reduction; љ . the determining of linear combinations of variables; љ . ... identification of groups of objects or of outliers. ... Finding a set of principal axes allows the objects to be adequately characterised on a smaller number of (artificial) variables. ... Reduction of dimensionality is practicable if the first new axes account for approximately 75 % or more of the variance. ...

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