COLOR PRINT OF NGC 4881 AND PART OF THE SURROUNDING FIELD This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. ... It is a 13th-magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. ... We must find that peak ("turnover") in NGC 4881 in order to judge the distance. ...
... Disc-driven migration · Key physics: · Low mass - type I migration · Planet-planet interactions · Eccentricity damped by disc · Turbulence in disc Image Credit: Phil Armitage A parameterised approach · · Bespoke N-body code Additional forces · - migration timescale · - disc turbulence parameter · K - ratio of e to a damping · Modified 2nd order Leapfrog integrator Our simulations ...
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Ссылки http://www.mrao.cam.ac.uk/wp-content/uploads/2014/04/THands.pdf -- 1345.6 Кб -- 16.04.2014 Похожие документы
... Вязаная кофта для мальчика PlayToday идеально подойдет вашему ребенку в прохладные дни. ... Уютная кофта с воротником-стойкой и длинными рукавами застегивается на металлическую застежку-молнию по всей длине, которая позволяет без труда переодеть ребенка. ... Оформлена кофта фактурной вязкой. ... Цвет: разноцветный . ... Размер INT: 50 . ... Брюки спортивные Bikkembergs. Цвет: мультиколор. ... Размер BRAND: 6 мес (68 см) . ... Размер BRAND: 1 год (80 см) . Размер BRAND: 1,5 года (86 см) . ...
... Главная Астрономия Фотографии Рекорды Форум Гостевая книга . Азбука . ... Статьи по астрономии . Ваш путеводитель в мире астрономии . ... Статьи и рефераты по Астрономии / Астрономические Таблицы / Характеристики больших планет и их орбит . Характеристики внутренних планет . ... общая масса a . ... масса b (земля=1) . ... масса b (г) . ... сидерический круговой период . ... наклонение экватора к орбите . ... Характеристики внешних планет . ... Характеристики планетарных орбит . ...
... F. A. Primini, and H. E. Payne, eds. Deconvolution of "Drizzled" and Rotated HST/WFPC2 Images: Faint-ob ject Photometry in Crowded Fields Raymond Butler, Aaron Golden, Andrew Shearer Department of Information Technology, National University of Ireland Galway, University Road, Galway, Ireland Abstract. ... This makes it an excellent starting point for our non-linear subsampled MEM (Maximum Entropy Method) deconvolution approach to star detection and crowded-field photometry on HST/WFPC2 images. ...
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Ссылки http://www.adass.org/adass/proceedings/adass00/reprints/P1-20.pdf -- 363.6 Кб -- 29.05.2001 Похожие документы
... LMC Project Outline . NGC 1818 Initial Results . ... The Large Magellanic Cloud (LMC) is uniquely suitable for the study of massive star clusters at all stages of evolution. By combining HST observations of these clusters with N-body models we hope to understand the origin and evolution of rich star clusters in our own Galaxy, in the LMC, and beyond. ... We aim to combine our HST observations with N-body models to understand the formation and evolution of globular clusters. ...
... Фотометрические данные представлены данными с различных телескопов: . ... Telescope . ... La Palma . ... Zeiss 1000 . ... Фотометрические данные с телескопа WHT (William Hershel Telescope) и телескопа INT (Isaac Newton Telescope) (оба установлены на Канарских островах), представляют собой наблюдения c ПЗС приемником 1k x 1k в широкополосных фильтрах (B, V, R, I). ... Данные с телескопа Zeiss 1000 представляют собой также ПЗС (2k x 2k) наблюдения галактики в широкополосных фильтрах (B, V, R, I). ...
Next: *upspecrdf, downspecrdf* - Transform Up: Spectral Analysis Previous: *grid_plot* - Plot Results . The conversion of count rate to flux depends on the intrinsic spectrum of the source, so xflux must be used in conjunction with fit . Fit generates a table of the best fit intrinsic spectrum ( _int.tab extension). xflux uses this table to calculate either the integrated flux between two energy limits or the flux density at a specific energy. ... This produces ``..._obs.tab'' file. ...
hstpolsim -- Produce simulated polarization input data frames for HST instruments . ... inint = "" [name] . ... Name of the HST instrument for which simulated polarization images are to be produced. ... Name of the instrument specific polarizing filter for simulated images (ignored for SPECIAL instrument). filtname = "" [name] . Name of the instrument specific colour filter for simulated images. ... The header parameter FILTER provides the filter name and POLANG the polarizer angle. ...
... Received 2008; in original form 2008 ABSTRACT The rapidly oscillating Ap (roAp) star 10 Aql shows one of the lowest photometric pulsation amplitudes and is characterized by an unusual spectroscopic pulsational behavior compared to other roAp stars. ... The dramatic decline of pulsations in the atmospheric layers probed by the strong Pr III and Nd III lines accounts for the apparent peculiarity of 10 Aql when compared to other roAp stars. ... Pulsations in the roAp star 10 Aql Table 6. ...
... Chain of Impact Craters Suggested by Spaceborne Radar Images . ... From space, astronauts often get the impression that the Earth is small with a thin, fragile layer of atmosphere. ... Galileo Earth Encounter . ... The Earth and Moon were imaged by Mariner 10 from 2.6 million kilometers while completing the first ever Earth-Moon encounter by a spacecraft capable of returning high resolution digital color image data. ... During its flight, the Galileo spacecraft returned images of the Earth and Moon....