... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Galaxy sector, archive 2014
• Galaxy sector, archive 2006
• Galaxy sector, archive 2002

... The Black Hole in the Milky Way . ... Credit Copyright: NASA , JPL-Caltech, NuSTAR project Explanation: At the center of our Milky Way Galaxy , a mere 27,000 light-years away, lies a black hole with 4 million times the mass of the Sun. ... X-rays are generated in material heated to over 100 million degrees Celsius, accelerated to nearly the speed of light as it falls into the Miky Way's central black hole. ... Publications with keywords: black hole - Milky Way . ... Close Comet and the Milky Way . ...

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• Journal "Peremennye Zvezdy"
• The Cloudy Cores of Active Galaxies
• M81: Feeding a Black Hole

... Astronomers have used NASA's Hubble Space Telescope to probe the core of the nearest active galaxy to Earth, Centaurus A. Hubble's Near Infrared Camera and Multi-Object Spectrometer was used to peer past the dust to discover a tilted disk of hot gas at the galaxy's center (white bar running diagonally across image center). This 130 light-year diameter disk encircles a suspected black hole which may be one billion times the mass of our Sun. ... Centaurus A (NGC 5128) Fast Facts . ...

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• Arcetri Open Time
• Hubble Uncovers Dust Disk Around a Massive Black Hole (STScI-PRC98-22) A
• Dust grains from the heart of supernovae

... STFC/JBO/MERLIN Fatal Beauty This composite image (about 180 000 light years across) shows the jet from the black hole at the centre of one galaxy striking another galaxy, the first time such an interaction has been found. ... The proximity of the two galaxies (around twenty thousand light years, about the same distance Earth is from the centre of the Milky Way) means that any planetary systems in the path of the deadly jet are likely to have been destroyed. ...

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• http://www.armaghplanet.com/pdf/AstroTopics/Beyond%20the%20Solar%20System/Guide%20to%20the%20galaxies.pdf
• ESO reveals end of cosmic Dark ages | Astronotes
• Pinteresting Times for Armagh Planetarium | Astronotes

... Tonight's Sky . ... Observing . ... Behemoth black hole found in an unlikely place . ... black holes . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Do black holes stretch or rip the fabric of space-time? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• What effect does time dilation have on something trying to cross a black hole's
• Does the time it takes different methods to create all the elements coincide
• Stellar time machines | Astronomy.com

... The event horizon is the boundary of a black hole) . ... When the supermassive star implodes (collapses under it?s own gravity) a black hole is formed. Many black holes have been found in the centres of galaxies. ... It was thought that black holes don?t give out any energy at all (except when engulfing stars). ... It is thought that as the stars pass near to the centre, they are pulled in by the black hole and forced to remain orbiting around the black hole. ...

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• Strong Gravity in the Vicinity of Supermassive Black Holes - by Eamon Scullion,
• Armagh Observatory
• The Whirlpool galaxy (Messier 51) | International Year of Astronomy in Ireland

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

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• Linux I/O port programming mini-HOWTO: High-resolution timing
• Results scientific researchs 5
• Time Functions

... title='Гаджет Часы настенные - ON Time Black-Red' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . Производитель: KingSilk . Материал: Хлопковый сатин . Декоративный материал: Жаккард вискозный . ... Размер: King size (Евро макси) . Размер пододеяльника: 220х240 см . ... Размер простыни: 245х270 (обычная) . Размер наволочек: 50х70 и 70х70 (по 2 шт) . ... Размер наволочки: None . ... Постельное белье . ... Материал верха: искусственная кожа . ...

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• Серьги авантюрин серенада Часы Nixon Time Teller P Navy/Paisley
• Аксессуар Защитная пленка Samsung Galaxy Note 5 Ainy матовая Коробочка удачи
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... Up: Iraf Packages . ... IRAF Group, NOAO 1 , PO Box 26732, Tucson, AZ 85726 . This paper describes a new IRAF spectroscopy exposure time calculator. ... SPTIME takes an input source spectrum, either a reference blackbody, power law, or a user spectrum, a background ``sky'', observing parameters such as exposure time, central wavelength, seeing, airmass, and moon phase, instrument parameters such as aperture sizes and detector binning, a description of the spectrograph, and desired output. ...

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• Determination of Variable Time Delay in Uneven Data Sets
• The Chandra Data Archive
• The Co-Addition Technique Applied to Images of Galaxy Cores

ALBUM: time .to.turn Album: Time to Turn Artist: Eloy @ SONG : Through A Somber Galaxy on my voyage through vast space towards the heart of brilliancy, I must cope with the unknow face of a somber galaxy this universe, seemingly vacant and dead; shapeless and black as the night, appears all the same full of life , immensly rich limited by human sense, I can only ...

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• A Simple Example With a Single Chirp Component
• ApSA courses

... Posts tagged ?principle component analysis? ... From SINGS (Spitzer Infrared Nearby Galaxies Survey): Isn?t it a beautiful Hubble tuning fork? ... Tags: Classification , clustering , factor analysis , Hubble , multivariate analysis , principle component analysis , SING , Spitzer , tuning fork . ... Comment . ... Entries RSS . Comments RSS . ... General comments . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

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• The AstroStat Slog time series
• The AstroStat Slog morphology
• The AstroStat Slog lensing

... Subject of Astronomy. ... Basis of Spherical and Practical Astronomy. ... Celestial Sphere. ... Changes of Star's Coordinates as a Result of Daily Rotation of Celestial Sphere. ... Time Measuring. ... Changes of Solar Equatorial Coordinates. ... Stellar Day, Stellar Time. ... Real Solar Time. ... Mean Solar Time. ... Connections between Stellar and Mean Time. ... Apparent Path and Configuration of Planets. ... Ways of Energy Transportation to Stellar Surface.Basis of Spectral Analysis. ... Solar...

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• Extragalactic Astronomy
• Stellar Astronomy
• Cosmology

... About 10% of the time is allocated to moving the telescope to the zenith and exchanging the spectrographic cartridges. ... Focus telescope (open-loop)* . ... TOTAL TIME (seconds) . ... This assumes two 60 second arc exposures and two 55 second readouts. ... Otherwise, the arc exposure will likely consist of a 30 second integration followed by a quick 28 second readout, half the normal time. ... The flat-field exposure can be read out with a quick 28 second readout, half the normal time. ...

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• MILT Description

... Galaxy Evolution Explorer (GALEX) . ... Searching for SZ clusters . ... Baryon content of galaxy clusters and cosmology . ... 3 sigma peaks: Observational Signatures of High Redshift Galaxies and Low Redshift Clusters . CLUSTERS OF GALAXIES . ... Clusters of galaxies seen in X-rays: war and peace . ... Chandra X-ray Observations of Clusters/Groups/Galaxies . ... Common timing features in neutron stars and black holes . ... X-ray luminosity function of low-mass X-ray binaries in galaxies . ...

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• Титарчук Лев Григорьевич (NRL)
• Second Spectrum-RG/eROSITA Conference
• Spectrum-Roentgen-Gamma - The astrophysical Project at IKI RAN

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

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NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

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... Опубликовано 25 августа 2009 г. Обновлено 1 июля 2010 г. Обновление: В результате голосования в июне 2010 г. жители округов Старк и Биллингс, штат Северная Дакота, отклонили предложение о смене часового пояса. ... Рубрика: Часовые пояса мира | Метки: Central Standard Time , Mountain Standard Time , North Dakota , Stark County , time zone , time zone change , округ Старк , Северная Дакота , часовой пояс | ... Часовые пояса мира (13) . Часовые пояса России (10) . ... Блог о часовых поясах . ...

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. Back to A.Zasov's homepage.

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... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

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• Elena Seifina
• Eugene Trunkovsky
• Stellar Astrophysics Department

. Please, enter light elements for your star and Julian Day interval. HJD0: . Period: . JD1: . JD2: .

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