XMM-Newton Science Analysis System . ... For those whose heads began to ache at around the second equation, think of it this way: at each pixel of the image, the probability of recording events is given by the Poisson distribution corresponding to the expectation value . ... We can then assign a probability to the pixel value from equation 5 . Now let us multiply all the probabilities for individual pixels together. ... XMM-Newton SOC/SSC -- 2007-07-09 ...

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... title='Mill Around - Quiksilver - Quiksilver' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Сумка-портфель для мужчин от Quiksilver - новинка из коллекции "Весна 2015". ... Цвет: белый . ... Тип товара на Маркете: Кроссовки детские . ... Цвет: черный . Тип товара: Кроссовки . ... Тип монтажа Вертикальный . ... Тип нагрева Электрообогрев . ... Цвет: синий . ... Цвет: коричневый/бежевый . ... Клипса-магнит для штор "Calamita Fiore", цвет: светло-голубой. ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

... 8, ``Celestial Mechanics'', 2002 Precession and free core nutation of neutron stars A. Gusev, I. Kitiashvili Kazan University, Russia In 1992 Wolszczan and Frail discovered a planetary system around the pulsar PSR 1257+12 [1]. ... Third case: the most likely possibility is the free precession of the pulsar with a rigid 81 neutron star. ... It is known that rotation of the terrestrial planets having rigid mantle and elliptical liquid core is characterized by Free Core Nutation (FCN). ...

... How to Spot a Pale Blue Dot in the Night Sky - Signatures of Life on Extrasolar Planets . ... Frame 2: Steamy atmosphere, an ocean is covering the entire planet, no oxygen is present, timeline about four billion years ago. ... Using such telescopes as Kepler, James Webb Space Telescope (JWST), Darwin and Terrestrial Planet Finder (TPF), and masking the star light, the light from small Earth-like planets can be collected and analyzed. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

http://hubblesite.org/newscenter/archive/releases/1996/22/text/ Probing the mysterious heart of the Crab Nebula, the tattered remains of a stellar cataclysm witnessed more than 900 years ago, astronomers using NASA's Hubble Space Telescope have found that the Crab is even more dynamic than previously understood, based on a cosmic "movie" assembled from a series of Hubble observations. ... Because of this flickering, the neutron star is also called a "pulsar." ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997