... MAO main . ... The DRAGON globular cluster simulations: a million stars, black holes and gravitational waves . ... simulations of globular clusters with a million stars on the high-performance . ... of stars in globular clusters at unprecedented detail but also shed light into . the dark world of black holes. ... clusters of single and binary black holes. ... of a globular cluster. www.mpa-garching.mpg.de/328833/hl201603 . ... MAO/NASU, 27 Akademika Zabolotnoho St. 03680 Kyiv, Ukraine . ...

. Mapping temperatures in Abell 754 shows a lot of extremely hot gas that has been heated by shock waves as the two galaxy clusters collide. White indicates temperatures of hundreds of millions of degrees while blue regions are cooler. (Even so, the blue temperatures reach 130 million degrees.) . ESA/ XMM-Newton/ Patrick Henry et al.

Castalia . Asteroid 4769 . Asteroid 4769 Castalia is a near-Earth crossing asteroid that was discovered by Eleanor F. Helin (Caltech) on August 9, 1989. Scientists used radio astronomy and computer modeling to generate this image of Castalia. They obtained the data for the computer model in 1989 using the Arecibo radar/radio telescope in Puerto Rico when the asteroid passed within 5.6 million kilometers (3.5 million miles) of the Earth. ... Topographic Map of Castalia . ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Ноябрь 2003 . ... I recently read an article that I found initially disturbing, but after reading the information on this site regarding the sun, I feel much more calm. ... A few people have requested more information about the temperature of the sun. The temperature at the center of the sun is about 16 million degrees Kelvin (27 million degrees Fahrenheit), as stated in the article. ...

... Arecibo Observatory took radar images of asteroid 1998 QE2 and its moon as the space rock sailed safely past earth. ... Both the asteroid and its moon passed 6 million kilometers (3.8 million miles) from earth. ... Radar images of asteroid 1998 QE2 (bottom) and its satellite (top) on June 6. ... Radar images of asteroid 1998 QE2 (center) and its satellite (bottom left) on June 7. ... Radar image from June 7 showing the satellite moving past the primary. ...

Презентации к курсу лекций "Практическая радиоастрономия" для аспирантов. Части 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 . vo @ sao.ru ( Oleg Verkhodanov )

Detection Probability of Terrestrial Radio Signals by a Hostile Super-civilization Dr. Alexander L. Zaitsev, IRE, Russia, alzaitsev@gmail.com Comparison of the total number of the radar astronomy transmissions with respect to that used for sending messages to extra-terrestrial civilizations reveals that the probability of detection of the radio signals to extraterrestrials (ETs) is one million times smaller than that of the radar signals used to study planets and asteroids in the Solar System. ...

Commemorating the 100th anniversary . ... academician Sergei Pavlovich Korolev . ... KOROLEV . ... of rocket and space technology, . ... RSC Energia after S.P. Korolev) . ... 3, the city of Moscow. ... Monuments to Sergei Pavlovich Korolev were set up in the following cities: Zhitomir, Moscow, Baikonur, Korolev, on the premises of RSC Energia. Memorial museums were opened in Zhitomir, Moscow and at Baikonur Cosmodrome, while in RSC Energia’s museum was created S.P. Korolev’s memorial flat-study. ...

... Posts tagged ?mixture? ... Posted by hlee . A number of practical Bayesian data analysis books are available these days. ... Category: Bayesian , Fitting , Languages , MC , MCMC , Methods , Stat | ... One of the speakers from the google talk series exemplified model based clustering and mentioned the likelihood ratio test (LRT) for defining the number of clusters. ... Tags: LRT , mixture . Category: arXiv , Bad AstroStat , CHASC , Frequentist , Stat | ... Category: arXiv , Frequentist , Stat | ...

... This example explores the evolution of the sun. ... Given that the mass of proton is 1.00870 atomic mass units and the mass of a helium nucleus is 4.0026 atomic mass units, estimate the sun's average rate of energy production by nuclear reactions (in solar luminosities) over its lifetime. Take the age of the sun as 4.5 в 109 yr. Does nuclear energy production seem to successfully account for the energy output of the sun? (b) Comment on the changes in the abundance profiles as the sun ages. ...

... In the first page of this chapter, Eddington computes an effective temperature of 3.18 K, but this has nothing to do with the 2.725 K blackbody spectrum of the Cosmic Microwave Background (CMB) . Here is a quote of what Eddington actually said: . ... We shall first calculate the energy density of this radiation. ... It is clear that Eddington's model fits the optical data, but that Eddington did not anticipate either the CMB (red curve) or the interstellar dust (ISD, green curve). ...

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

... Contact A Problem of an estimation of accuracy of the asteroid CCD observations . The Minor Planet Center supported by the Interntional Astronomical Union is the main office for keeping observational data of the small Solar System bodies and their investigations. ... At Pulkovo Observatory we are estimating an accuracy of the CCD asteroid observations obtained by amateurs and professional astronomers all over the World using the MPC database. ...

... Using the uvby -photometry and proper motion data for about 5500 F stars within 80 pc from the Sun, we have studied velocity ellipsoid parameters and obtained the following results. 1) The sizw of all wllipsoid semiaxes increase systematically for groups of stars with the decrease of both temperature (at constant metallicity) and metallicity (at constant temperature). ... As a result, each of the three parameters - temperature, metallicity and velocity dispersion - is an age indicator. ...

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

... Astrophysics Group . ... STFC announces бе119 million contribution to The Square Kilometre Array . ... SKA AAVS0 array . ... One of these is the Square Kilometre Array telescope . ... STFC has as well announced today a contribution of бе165 million to theб European Spallation Source and бе25 millionб to participate in the M3 Space Mission (PLATO).б  Speaking ahead of an event at Jodrell Bank Observatory Science Minister David Willetts announced the funding for the two projects. ...

... General Information . ... The conference will take place at the Independent University, 11 Bolshoi Vlassievsky pereulok, 119002 Moscow. The nearest metro stations are: Smolenskaja (Смоленская, line 3 = dark blue, not to be confused with the other station of the same name on the line 4 = light blue) and Koropotkinskaja (Кропоткинская, line 1 = red), see this map (in russian, with detailed instructions) or another map (in english). A metro map might also be useful. ...

... Bad Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... If the earth moved closer to the sun by a millionth of an inch, would the earth burn up? ... Well, I'm not sure what you're teacher meant by that, but I assure you, the Earth could move lots closer to the Sun without burning up! ... In January the Earth is closest to the Sun: it's about 147 million kilometers away (a kilometer is a little more than half a mile). ... 2008 Phil Plait. ...

... These trajectories have an initial flight from the Earth to a large distance (of about 1.5 million km), the following passive flight to the Moon's orbit, an approach to the Moon with a decrease of an energy of a particle (spacecraft) selenocentric motion to a negative value and the temporary capture in an elliptic orbit of the Moon's satellite. ... Several trajectories of this type are determined. ... Ivashkin V. V. On optimal trajectories of space flight to the Moon in the Earth--Moon--Sun system. ...

Towards Practical Applications of THz Josephson Oscillators with Sub-mW Power and 500 GHz Frequency Tunability H. B. Wang1, 2, *, J. Yuan2, D. Y. An1, 2, N. Kinev3, M.Y. Li1, 2, X. J. Zhou1, M. Ji1, 2, Y. Huang1 ... Collective Quantum Phenomena in LISA+, Universitaet Tuebingen, D-72076 Tuebingen, Germany *Email: hbwang1000@gmail.com maximum detected power of 25 W, the frequency can be tuned by either bias ... Emission of coherent THz radiation from superconductors", Science 318, 1291, 2007. ...