Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

ALBUM: paranoid Artist: Black Sabbath Album: Paranoid @SONG: "War Pigs" Generals gathered in their masses just like witches at black masses evil minds that plot destruction sorcerers of death's construction in the fields the bodies burning as the war machine keeps turning death and hatred to mankind poisoning their brainwashed minds, oh lord yeah! Politicians hide themselves away they only started the war Why should they go out to fight? ... We'll just pass him there why should we even care? ...

... For SIMS (Secondary Ion Mass Spectrometry) analysis, a solid surface is bombarded by primary ions of some keV energy. ... The subsequent mass analysis of the emitted ions provides detailed information on the elemental and molecular composition of the surface. ... Extremely short ion pulses with a duration below . ... By rastering a fine-focussed ion beam over the surface, like an electron beam in an electron microprobe, mass resolved secondary ion images (chemical maps) can be obtained...

... Events . ... The Event Horizon Telescope: Observing Black Holes with Schwarzschild-Radius Resolution . ... Galaxy lies a super massive black hole - 4 million times more massive . ... Universe to spatially resolve and image a black hole Event Horizon. ... For the much more massive (6 billion solar mass) black hole . ... for assembling a submm-VLBI Event Horizon Telescope. ... emission near the event horizon of super massive black holes. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... The jets can also be produced in smaller scale by binary stellar systems. ... Some 200 -- 250 X-ray binaries, systems in which a neutron star or black hole is accreting material from a companion star, are known. Approximately 20% of these sources have been detected at radio wavelengths, and in several cases high resolution radio observations have resolved this emission into jet-like structures, sometimes with components moving at relativistic velocities. ... It is variable radio source. ...

... We show the analysis of low-hard and intermediate states of sources XTE J1550-564, H 1743-322, GX 339-4, XTE J1859-226, XTE J1650-500 and GRS 1915+105. ... Directly applying the scaling technique we also obtain that a ratio of the BH masses in XTE J1859-226 and in XTE J1550-564 is , and the corresponding ratio for XTE J1650-500 and XTE J1550-564 is . These values of scaling factors r implies that BH masses are ; solar masses in XTE J1859-226 and XTE J1650-500 respectively. ...

... Planets . ... The planets were found using the HARPS instrument on the 3.6m telescope at ESOтАЩs La Silla Observatory. ... A planet in orbit around a star causes the star to regularly move towards and away from observers on Earth. ... One newly discovered planet, HD 85512 b, is best hope found so far for a habitable exoplanet. ... The HARPS team so far have found that about 40% of stars similar to own Sun have at least one planet smaller than Saturn (which is 95 times more massive than Earth). ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... Models of central engines (1) Potential of disk accretion onto stellar mass black holes: disk binding energy: thin disk life time: - accreted mass - disk outer radius - gravitational radius - Shakura­Sunyaev parameter Ultra-dense Hyper-Eddington neutrino cooled disks !! ... 1989); Neutron star + Neutron star Neutron star + Black hole White dwarf + Black hole Black hole + compact disk Burst duration: 0.1s ­ 1.0s Released binding energy: (1.2) Collapsars­ origin of long duration GRBs? ...

... Abubekerov M.K., Lipunov V.M. "The Lower Temperature Limits Of Accretors" Astronomy Reports, 2003, Vol. 47, Issue 8, pp.679-684. ... Abubekerov M.K., Antokhina E.A., Cherepashchuk A.M. "The Masses of X-ray Pulsars in Binary systems with OB Supergiants" Astronomy Reports, 2004, Vol. ... Abubekerov M.K., Antokhina E.A., Cherepashchuk A.M., Shimanskii V.V. "The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630" Astronomy Reports Astronomy Reports, 2006, Vol.50, Issue 7, pp.544-552. ...

UPPER PANEL: The gas surface density map in log scale. The red circle in the center represents the central protostar. The development of spiral structure in the protostellar disk is evident. Dense protostellar/protoplanetary clumsp form within the spiral arms and are driven into the protostar by the action of gravitational torques. LOWER PANEL: The mass accretion rate onto the protostar as a function of time. The mass accretion rate is characterized by very short ( . ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON APRIL 2012 HAS MADE Wapr.= ... 113.0 --------------------------------------------------------------------------- Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 30.04 - 06.05.2012, Forecast on 07 - 13.05.2012, CARRINGTON ROTATION 2123 (28,19.04.2012) SUNSPOT ACTIVITY OF THE SUN OF LAST WEEK REMAINED AT THE AVERAGE LEVEL. ... NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE AVERAGE. ...

... Authors: David Ehrenreich et al. arxiv:1506.07531 Черная дыра с массой 50000 солнечных в ядре RGG 118 (A ~50,000 solar mass black hole in the nucleus of RGG 118) . Authors: Vivienne Baldassare, Amy Reines, Elena Gallo, Jenny Greene . arxiv:1506.07135 Результаты Планка 2015: XVI. ... Authors: Planck Collaboration . ... Authors: Daniel Jontof-Hutter et al. arxiv:1506.05917 Измерение массы черной дыры в NGC 1097 с помощью ALMA (A Measurement of the Black-Hole Mass in NGC 1097 using ALMA) . ...

... Товары для любителей астрономии ? Сопутствующие товары, книги и т.д., а также другие вопросы (Модераторы: zlyden , Denk36 ) ? ШАК-2015 . ... Сообщений: 347 . Рейтинг: +17/-0 . ... Еще в конце июля Угольников на мой вопрос ответил: ШАК должен на днях пойти в типографию. ... Записан . Сообщений: 705 . ... Сообщений: 1 183 . Рейтинг: +206/-0 . ... Сообщений: 2 244 . ... 1) На стр. 103 год издания книги Рэндалла "Достучаться до небес" указан как 2104. ... Сообщений: 1 021 . ...

. XMM-Newton Science Analysis System . arfgen (arfgen-1.54.7) [xmmsas_20030110_1802-5.4.1] . Meta Index / Home Page / Description These modes are treated specially within arfgen . Due to the nature of the extraction region neither an encircled energy or vignetting correction is applied to the ARF. Such corrections are likely to be available in a future version but the effect will be rather small. XMM-Newton SOC/SSC -- 2003-01-10

... The Russian Academy of Sciences, Federal Space Agency (ROSCOSMOS), the Ministry of Defense of the Russian Federation, the Ministry of Communications and Mass Media of the Russian Federation (MINCOMSVYAZ), Federal Agency on Technical Regulating and Metrology (ROSSTANDART), Federal Service for State Registration , Cadaster and Cartography (ROSREESTR), Scientific Council of the Russian Academy of Sciences on PNT problem and the ... Ipatov А. V. (Institute of Applied Astronomy of RAS) ? ...

... 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 . ...

The black hole. ... The black holes are generated in the result of a collapse of giant stars with the mass more than three Sun's masses. ... And moreover the gas near the neutron star or the black hole will get hot and will become a source of high energetic electromagnetic radiation in X-rays and gamma range. ... In the majority of double systems, being the sources of X-rays radiation, the invisible component mass does not exceed the two solar masses, so it is a neutron star. ...

... CI Cam is known to be a B[e] star and X-ray transient source. ... Figure 1. The light curve of CI Cam in residuals relative to the mean level of the slow variability (top) . The radial velocity curve of the HeII emission (middle) . ... The V light curve is shown in Figure 1 (top). ... Comparison of two CI Cam spectra in the region of HeII line. ... The radial velocity curve of HeII in CI Cam has a saw-tooth shape that may be an evidence of an elliptical orbit. ...