XMM-Newton Science Analysis System . ... Meta Index / Home Page This section documents the parameters recognized by this task (if any). ... set . yes . ... frame exposuretimes below this value are flagged as bad (sec) . ... Add column with number of raw pixels per frame to EXPOSURE table . ... mark frames with more pixels above given level as bad . ... frames with more pixels than this level are flagged bad . ... 9999. 0. frames with a raw pixelrate above this level are flagged bad (pixels/sec) . ...
... Computation: RJMCMC Similar to Richardson Green 1997 Knowledge of the PSF makes things easier Insensitive to the prior on k e.g. posterior when k = 10 and = 3: Posterior of number of sources (k) 8 9 10 11 12 0.058 0.141 0.222 0.220 0.157 0.019 0.022 0.029 0.027 0.021 Mean SD 7 0.029 0.018 13 0.082 0.014 Used posterior probabilities given by 10 chains 6 / 30 Example Region occupied by the three ... 28 / 30 XMM data spectral distribution 29 / 30 Four models 30 / 30 ...
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Ссылки http://hea-www.harvard.edu/AstroStat/Stat310_1314/dj_20131112.pdf -- 506.2 Кб -- 12.11.2013 Похожие документы
... Проф. А.Д.Чернин (ГАИШ, МГУ, Москва): ЭНЕРГЕТИЧЕСКИЙ СОСТАВ ВСЕЛЕННОЙ: НОВАЯ СИММЕТРИЯ 13.00-15.00. ... Проф. Л.И.Мирошниченко (ИЗМИРАН, Троицк, Россия): СОЛНЕЧНОЗЕМНЫЕ СВЯЗИ В 23-ЕМ ЦИКЛЕ СОЛНЕЧНОЙ АКТИВНОСТИ Лекция 9 10.50-11.30. ... М.И.Рябов, А.Л.Сухарев (Одесская обсерватория Радиоастрономического института НАНУ) : О ПРОЯ ВЛЕНИИ ИЗМЕНЕНИЙ СТРУКТУРЫ ПЕРЕМЕННО СТИ ПОТОКОВ ВНЕГАЛАКТИЧЕСКИХ РАДИОИСТОЧНИКОВ 3С120, OJ287, 3С273, 3С279, 3С454.3 НА РАЗЛИЧНЫХ ФАЗАХ АКТИВНОСТИ 4. ... РИ НАНУ Гравиметр. ...
... Ф ОТОЭЛЕКТРИЧЕСКИЙ ГИД . ... П ринцип действия построенного автором гида основан на определении с помощью фотоэлектронного умножителя (ФЭУ) изменений светового потока от звезды, закрываемой непрозрачной преградой при движении гида. ... Если изображение звезды проецируется на щель, то весь световой поток от нее проходит сквозь зеркало и поступает на фотокатод ФЭУ. ... Если больше половины изображения звезды погружается в щель - скорость начинает увеличиваться, меньше половины - уменьшаться. ...
. В&K : Статьи и литература : . И.А. Климишин. Заметки о нашем календаре . История нашего календаря . И сказал Бог: да будут светила на тверди небесной, . для отделения дня от ночи, и для знамений, . и времен, и дней, и годов... И создал Бог два светила великие: . светило большее, для управления днем, . и светило меньшее, для управления ночью, и звезды. И поставил их Бог на тверди небесной, . чтобы светить на Землю, . и управлять днем и ночью, и отделять свет от тьмы. И увидел Бог, что это хорошо. И был
... 268, 274), ( P , 680, 710)) OSF_flat_pr=( ( n , 0, 10), ( T , 250, 285), ( P , 500, 750)) def applyPriors(obsmod, prior = None , log_pr= False ): Apply prior information to a model -- supports flat or log-flat priors : param obsmod: The base model : param prior : List of lists defining the prior ranges : param log_pr: If true, use log-priors if prior is ... If None assume pointing straight up :param sampler: Allow different samplers to be run. ...
... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...
... Commands . ... This controller obtains and processes images from various guide cameras. ... In debug mode commands are received from standard input (the log window on a Mac) rather than from the serial port, so you can conduct tests directly from the guide image controller. ... Return data about the current camera, including image size, min and max possible pixel values, the CCD temperature (in C; NaN if not available for the current camera) and the file number for the next file to be written. ...
... Data It is now clear that fuzzballs are actually galaxies. ... Using the automatic telescope, we measured the redshifts and brightnesses of a large number of fuzzballs in all regions of the sky. ... Correlation between brightness and redshift Redshifts and Brightnesses 0.005 0.004 0.003 0.002 0.001 0 -0.001 0 -0.002 -0.003 -0.004 -0.005 Redshift of Fuzzball 500 1000 1500 2000 Brightness of Fuzzball The brightnesses and redshifts of all the fuzzballs measured are shown in this graph. ...
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Ссылки http://www.mso.anu.edu.au/pfrancis/roleplay/ziggy/model_answer3.pdf -- 63.3 Кб -- 27.06.2002 Похожие документы
Apache's support for content negotiation has been updated to meet the HTTP/1.1 specification. It can choose the best representation of a resource based on the browser-supplied preferences for media type, languages, character set and encoding. ... Content-Language: . ... The reason for setting this language quality factor for variant with no language to a very low value is to allow for a default variant which can be supplied if none of the other variants match the browser's language preferences. ...
... A task GCOMBINE in the STSDAS package, for combining images, is briefly reviewed. With a stack of input images, one can identify bad pixels by comparing the deviation of a pixel from the mean with a user-specified threshold times the clipping sigma. It is crucial that estimation of the mean and sigma be robust against unidentified outliers, in order to reject cosmic ray events effectively. ... By uniform weighting, we mean that the weight is a constant for all pixels in an input image. ...
... That star is called Sirius, and it is the brightest star in Earth's nighttime sky. ... But the other reason Sirius is so brilliant in our nighttime sky is that it is so close; Sirius is the nearest neighbor star to the Sun that can be seen with the unaided eye from the Northern Hemisphere. ... and even the nearest other star (alpha Centauri, visible from the Southern Hemisphere) would be 6,000 miles away. ... Sun . ... For example, alpha Centauri is the brightest star in the constellation Centaurus....
The Astronomy Net . Articles | ... Forums . ... Planets | ... The list below is a live snapshot of where the planets and moon are located right now. ... The links in the left hand column take you to a mirror of the excellent NinePlanets web site where you can read about each planet and much much more. The latest news includes the fact that Pluto is no longer classified as a planet. ... Pluto is now classified as a 'dwarf planet' which includes Ceres and soon to be many others. ... 100 . ...
... For reliable estimation of the accuracy of asteroid CCD observations we usually consider from ten or more various NUMBERED MINOR PLANETS (NMPs) observed during several nigths per month (more then 50 positions). ... They can be considered as an indicator of accuracy of the CCD positional observations with given MPC code. ... For any NUMBERED minor planet the (O-C) values must be zero if the errors of observations and the errors of its theory are absent. ...
... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...
October 17, 2010 ================ CDK125 and Nikon D3s Exposure of 0.001 seconds at ISO 1600 nikon_1287376892_moon_0p001s_1600iso.jpg was taken at Wed, 30 Jan 1974 00:28:09 GMT You can convert any unix time stamp to GMT (UTC) at this website: http://www.onlineconversion.com/unix_time.htm
Astronotes Armagh Planetarium's Stellar Blog! ... By admin September 26, 2011 Posted in: Cosmology . ... Neutrinos emitted by this explosion did not travel faster than light. ... Albert Einstein (1879-1955) came up with the theory of relativity that established the speed of light as the cosmic speed limit. ... If you divide the distance between those two points by the time it takes for the neutrinos to travel, you get their speed. ... Reply . ... Posted September 26, 2011 at 3:41 PM . ... Astronotes . ...
. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 05:31:25.9 . ЮД 2000 . +34:12:50 . l . 173.925 . b . 0.267 . diameter . 6.0' . (m - M) 0 . 10.06 0.2 . distance . 1000 120 pc . E(B - V) . 1.97 0.2 . log(t) . (J, J-H) isochrone VOTable . 2MASS data VOTable . IPHAS IDR data VOTable . Developed by the Team . Send us your questions or feedback