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... В теме В разделе По форуму . ... Темы, интересные всем ? ... Научная панорама ? Рентгеновская икота Sgr A* по данным XMM-Newton. предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. ... Напомню, что от Sgr A* довольно часто наблюдают рентгеновские и ИК вспышки. ... предыдущая тема следующая тема . ... Рентгеновская икота Sgr A* по данным XMM-Newton. ... SMF | SMF 2011 , Simple Machines . SimplePortal 2.3.4 2008-2011, SimplePortal . ...

... Abstract Search for a given value within a character string array. ... The function returns the index of the first array entry equivalent to value, or -1 if none is found. ... Trailing blanks in this key are not significant: string matches found by this routine do not require trailing blanks in value to match those in the corresponding element of array. ndim is the dimension of the array. lenvals is the declared length of the strings in the input string array, including null terminators. ...

In order to calculate the line profile of a given absorption line for atomic species Z with a wavelength LAMBDA (in Angstroms) and a microturbulent velocity VT (in km/s). ... mode . ... 1) The input model may contain more than one model (i.e. it may be an entire grid of models). Spectrum will cycle through this grid NMOD times, omitting NSKIP-1 models from the . ... However, the input data following MODE must be repeated NMOD times in order to obtain equivalent results for each model in the grid. ...

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... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

... Новости . ... 17-05-2006 15:04 РОЛ . При помощи космического телескопа ЕКА XMM-Newton была составлена карта 25 процентов неба в рентгеновском диапазоне. ... Сверхновая "Вела" (снимок ROSAT слева, XMM-Newton - справа) . Несмотря на то, что при поворотах звезды и галактики попадали в поле зрения телескопа только на 10 секунд, высокая чувствительность аппаратуры позволила обнаружить тысячи новых источников излучения. ... Орбитальный телескоп сфотографировал галактическую Печь . ...

... Problem 2. (a) Prove that the spaces R3 \ S 1 and S 2 S 1 are homotopy equivalent; here S 1 R3 is the standard circle lying in the xy coordinate plane. (b) Let X be the space R3 from which n copies of S 1 lying in parallel planes are deleted. ... Prove that the spaces R3 \ L and S 2 T2 are homotopy equivalent. For every continuous map f : S 1 S 1 one can de ne an integer deg(f ) so that the following statements are true: · Maps f1 and f2 are homotopic if and only if deg(f1 ) = deg(f2 ). ...

... Получены первые изображения Юпитера на спутнике XMM-Newton . Рентгеновское (авроральное) излучение Юпитера было открыто еще в 80-е гг. на обсерватории Эйнштейн. Затем в 90-е Юпитер активно изучался с борта спутника ROSAT. Совсем недавно были проведены наблюдения Юпитера на Чандре. ... Публикации с ключевыми словами: Юпитер - рентгеновское излучение - XMM-Newton . Публикации со словами: Юпитер - рентгеновское излучение - XMM-Newton . ... Облака Юпитера: вид с аппарата Новые Горизонты . ...

... Сегодня: 10 апреля 2016 г. [ESA] Космический рентгеновский телескоп XMM-Newton принадлежит Европейскому космическому агентству (European Space Agency, ESA). ... Телескоп XMM-Newton уже провел наблюдение центра этой галактики, выявив при этом много новых источников рентгеновского излучения. ... Кроме того, телескоп XMM-Newton впервые смог идентифицировать компоненты диффузного излучения этой галактики. ... Структура галактики Андромеда на снимках с рентгеновского телескопа XMM-Newton . ...

4.0 Multiple Output CCD Optimization . ... For the reasons described in the section above, we are rapidly approaching the limits to decreasing the noise spectral density of on-chip CCD amplifiers using smaller amplifier geometries. ... Our testbed for optimizing multiple output CCDs is our ADAPTIII CCD – a very high frame rate (10,000 frames per second), low noise (less than 3 electrons rms.), back illuminated CCD designed for adaptive optics and wavefront sensing applications. ... Pixel Format . ...

... 2000 February 11 . XMM-Newton First Light: X-Rays From The LMC . ... Explanation: Recently the European Space Agency released this and other spectacular "first light" pictures from its new orbiting x-ray observatory , christened XMM-Newton . ... The picture is a false-colour one in which low energy x-rays are translated to red, medium energy to green, and high energy to blue. ... About APOD | ...

... Posts tagged ?XMM-Newton? ... The dichotomy of outliers; detecting outliers to be discarded or to be investigated; statistics that is robust enough not to be influenced by outliers or sensitive enough to alert the anomaly in the data distribution. ... ArXiv] 3rd week, Apr. ... Comment . ... Entries RSS . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Alfred Inselberg on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

The central regions of our galaxy, the Milky Way, seen in X-rays by ESA s XMM-Newton X-ray observatory. This image portrays powerful remnants of dead stars and their mighty action on the surrounding gas, showing us an unprecedented view of the Milky Way's energetic core. ... The image combines data collected at energies from 0.5 to 2 keV (shown in red), 2 to 4.5 keV (shown in green) and 4.5 to 12 keV (shown in blue). It spans about 2.5 across, equivalent to about one thousand light-years. ...

... Denmark: ftp://ftp.dmi.min.dk/pub/Data/WDCC1/indices/kp-ap/ . Germany: ftp://ftp.gfz-potsdam.de/pub/home/obs/kp-ap/ . ... we do not guarantee the correctness of the international sunspot number R; these values are published separately (Brussels, Belgium) The following scientific and format documentation is adapted from ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/kp_ap.fmt The subscript p means planetary and designates a global magnetic activity index. ...

Telescope gain (K/Jy) measured using diode temperature and a set of calibrator sources of known flux. Do crosses (+/- 3 beamwidths) on well known calibrator fluxes to get the gain of telescope. plot of two crosses at 45 degrees with source deflection overplotted (.pdf) . ... Fit curves to gain vs za using many calibrators. ... Measure unknown source strength using the cals to get source strength in kelvins. ... Tsys/Gain: measures the gain of the telescope in units of Tsys rather than degK. ...

Multi-Frequency Synthesis in K-band . The Multi-Frequency Synthesis (MFS) permits to realize a good quality imaging of the continuum radio sources in short time. ... The RadioAstron mission will operate one K-band circular polarized channel at fixed frequency 22,232 GHz. ... In general one K-band RadioAstron channel with fixed frequency will be unchanging and compatible with all the ground radio telescopes. ... Progress of the RadioAstron Project in Pictures . ...

WORLDWIDE INDICES The subscript "p" means planetary and designates a global magnetic activity in- dex. ... EQUIVALENT AMPLITUDE The a-index ranges from 0 to 400 and represents a K-value converted to a linear scale in gammas (nanoTeslas)--a scale that measures equivalent disturbance am- plitude of a station at which K=9 has a lower limit of 400 gammas. ... 17-20 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 03-06 UT. ...