... QSO spectra in the ROSAT band are steeper than the background at harder energies, and furthermore at fluxes below 1E-14 ergs/(s cm?) the quasar source counts flatten off and are replaced by more numerous populations of relatively low red-shift objects, apparently Narrow Emission Line Galaxies (NELG). ... We extracted the luminosity function from ROSAT Deep Survey results, and extrapolated by a factor of 2 - 3 to account for changes expected in the harder XMM band. ...

Еще в разделе: (Показать все результаты (>8833) - xmm.vilspa.esa.es/ )

• Pile-Up in the RGS
• Practical examples and hints

... Development of Ideas of Structure and Evolution of Stars. Integral Features of Stars, Which Determine Their Structure, Direction and Rate of Evolutuion. ... Connection between Potential and Thermal Energy of Star. ... Structure of a Main Sequence Star. Features of Massive Stars Evolution on the Main Sequence. Internal Structure of the Sun. ... White Dwarfs, Their Features. ... Evolution from the Main Sequence of Massive Stars. ... Evolution of Small Mass Stars till White Dwarfs Sequence. ...

Еще в разделе: (Показать все результаты (>68) - space.univ.kiev.ua/ )

• WARNING MISSION: Background
• Solar Physics
• Extragalactic Astronomy

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

Еще в разделе: (Показать все результаты (>913) - www.rochesterastronomy.org/ )

• Common problems
• Supernova 1999cw in MCG -01-02-001
• Supernovae 2012ht in NGC 3447

... Целью курса является ввести слушателей в круг основных современных идей и приложений, развивающихся вокруг классической задачи об оптимальном переносе массы, сформулированной более 200 лет назад Г.Монжем. ... I. Введение в задачи оптимального переноса массы. (4-6 часов, Е. Степанов) . Классическая задача Монжа. ... Существование решений задачи Монжа (решение квадратической задачи, решение линейной задачи в одномерном случае, основная идея решения линейной задачи в общем случае). ... Дробные массы. ...

Еще в разделе: (Показать все результаты (>935) - www.mccme.ru/ )

• Computability and Complexity
• IUM10 conference: L.D.Faddeev
• Introduction to Geometric Group Theory

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

Еще в разделе: (Показать все результаты (>307) - mavr.sao.ru/ )

• Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology
• New LBV Stars in the Andromeda Galaxy
• Detection of unique bright radio flare of X-ray binary

... Mass . ... Following several successful moon landings,NASA decided to use its last Saturn V not to fly to the moon but to place in low Earth orbit a large space station, named Skylab. ... It was followed that year by three manned flights using the smaller Saturn IB, each carrying 3 astronauts for a prolonged stay aboard Skylab. ... Mass measurements aboard Skylab were part of the medical experiments conducted there. ... Measuring body mass in the M172 chair (see illustration) was not a simple matter...

Еще в разделе: (Показать все результаты (>1074) - www.cosmos.ru/ )

• Space Research Institute (IKI) Seminar
• Vectors
• Spectrum-RG

... Basically, this level is a lot of fun. ... Play Information * ==================== Episode and Level # : E1M2 Single Player : Yes Cooperative 2-4 Player : Yes Deathmatch 2-4 Player : Yes Difficulty Settings : Yes New Sounds : No New Graphics : No Demos Replaced : None * Construction * ================ Base : New level from scratch Build Time in Hours : Way Too Many Editor(s) used : DEU 5.0 / BSP 1.1 Known Bugs : An occasional flash of gray when crossing certain sector lines. ...

Еще в разделе: (Показать все результаты (>5688) - crydee.sai.msu.ru/ )

• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/r/rush/signals
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/r/rush/signals.1
• http://crydee.sai.msu.ru/ftproot/pub/rec/games/unsorted/faqs/jazz.faq

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... Unfortunately this means that rigid mirrors without active support have to be very thick, and hence very heavy and hard to support, if they are to be adequately stiff. This problem led to the development of thin mirrors with active support, first for the NTT and later the VLT. ...

Еще в разделе: (Показать все результаты (>52742) - www.eso.org/ )

• Wide-field view of the sky around VFTS 102: the fastest rotating massive star
• VFTS 102: the fastest rotating massive star (unannotated)
• The Cosmic Bat | ESO

... Dione's icy surface includes heavily cratered terrain, moderately cratered plains, lightly cratered plains, and whispy material. The heavily cratered terrain has numerous craters greater than 100 kilometers in diameter. ... Much of the heavily cratered terrain is located on the trailing hemisphere , with the less cratered plains area existing on the leading hemisphere . ... Because Dione is relatively small, an impact causing a 35 kilometer (21 mile) crater could have spun the satellite. ...

Еще в разделе: (Показать все результаты (>788) - www.iki.rssi.ru/ )

• New Mirrors
• Comet Introduction
• Mass Measurements aboard Space Station Skylab

... Indeed, in a number of cases, when studying the motion of celestial objects one should take into account both gravity and repulsive force of light pressure. ... For the first time it was V. V. Radziewsky who stated and solved some probґ lems in dynamics of particle's of the photogravitational problem. In the phoґ togravitational three--body problem, formulated by him, in contrast to the clasґ sical problem, one of primaries or both of them are the sources of light repulsion. ...

Еще в разделе: (Показать все результаты (>441) - www.ipa.nw.ru/ )

• Keywords_184
• LAB Ephem. Astronomy-ERA

. Subdwarfs . Metal deficient red giants in galactic field . Red horizontal branch stars . Blue horizontal branch stars . Extended horizontal branch stars . Stars inside globular clusters . W Vir type stars . IRAS-sources identified with peculiar supergiants . RCrB type stars . Sakurai's object . peculiar supergiant FG Sge .

Еще в разделе: (Показать все результаты (>897) - jet.sao.ru/ )

• Make macros
• Results scientific researchs 5
• Linux PCI-HOWTO: General tips for PCI-Motherboard + Linux NCR PCI SCSI

. To see a Russian version of this page click here . (Senior Researcher. Graduated from Moscow State University (MSU) in 1982, Ph.D. 1986, MSU) . A member of EAS and IAU. Fields of interest: hot massive stars, close binary systems: optical photometric and spectral observations, X-ray observations; ill-posed problems, X-ray astrophysics. My publications (ADS link) . Linux on CLEVO 8750 (old stuff) . Phones/addresses of my university mates graduated in 1982. E-mail: igor@sai.msu.ru .

Еще в разделе: (Показать все результаты (>16) - uranus.sai.msu.ru/ )

• Tatjana Khruzina

... The analysis shows, that asteroid ґ rubble pile loses its fast fragments in no time but the retaining fragments forms a compact structure immersed in dust ґ gas atmosphere, created by interaction of interplanetary medium with dispersed product of collisional evolution of asteroid. By interaction of an asteroid ґ rubble pile with interplanetary medium structures asteroid can increase its brightness on account of blowed up dust simulating phenomenon of distant comet's brightening. ...

Еще в разделе: (Показать все результаты (>103) - selena.sai.msu.ru/ )

The revision of the MASS/DIMM star catalogue N. Shatsky, V. Kornilov March 16, 2008 Abstract The compilation of the (updated) version of the MASS (MASS/DIMM) device target catalogue is described. ... Then the list was cleaned according to following criteria: I. Remove stars too faint for a MASS device. ... Here the color equation of the Sternb erg device was taken: M AS S mag = V mag + 0.45 (B - V ); stars with M AS S mag > 3.2 were removed. ... This was made based on the GCVS4.2 catalogue data. ...

Еще в разделе: (Показать все результаты (>38) - curl.sai.msu.ru/ )

• . The . MASS . Group .

О СОЛНЕЧНО-ЗЕМНОЙ ФИЗИКЕ ЮНЫМ И МОЛОДЫМ . Песня о Солнце . Есть много лирических песен, воспевающих наше прекрасное Солнце. ... Our star, the Sun is a big ball of gas . ... What powers our Sun and makes it so bright? Come on and tell me, what makes all that light? ... When fusion takes place light is created . And it makes its way out (although rather belated) . ... The light comes out and shines on you and me . ... Приди ко мне и расскажи, что творит свет? ...

Еще в разделе: (Показать все результаты (>554) - www.izmiran.rssi.ru/ )

Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...

Еще в разделе: (Показать все результаты (>1691) - www.adass.org/ )

• An IRAF-Independent Interface for Spatial-Region Descriptors
• ADASS 2002 Conference Proceedings
• Imaging by an Optimizing Method

... Stars . ... Cepheid variable stars have been known since the 18th century. ... Regularly brightening to a peak over days, weeks or months before fading these variable stars were remarkable curiosities to astronomers in past centuries.?а The term Cepheid is taken from the star Delta Cephei in the constellation of Cepheus, which was identified as variable?а in 1784 by the teenaged prodigy John Goodricke (1764-96). ... Tweets that mention Cepheids: Inconstant Stars which break the rules | ...

Еще в разделе: (Показать все результаты (>2582) - www.armaghplanet.com/ )

• March Sky Wonders | Astronotes
• The Ultimate Space Game | Astronotes
• The December 2015 Night sky | Astronotes

... Recent Topics . ... MAO main . ... Make an Impact with Physics of the Dark Universe! . ... От: Physics of the Dark Universe <journals@mail.elsevier.com> Кому: Ця електронна адреса захищена в?д спам-бот?в. вам потр?бно ув?мкнути JavaScript, щоб побачити ?? Отправлено: Mon, 17 Aug 2015 14:12:51 +0300 (EEST) Тема: Make an Impact with Physics of the Dark Universe! ... Click here to view an online version impact factor news Make an Impact with Physics of the Dark Universe! ...

Еще в разделе: (Показать все результаты (>407) - www.mao.kiev.ua/ )

• Optical instrument making. Contact
• Area of scientific investigations

In this chapter we will consider an example of visual expert system written on the Actor Prolog language. ... There are a lot of methods of oil field bed stimulation that increase output of the oil production: thermal, physical-chemical, gas, microbiological, and others. ... Fig. ... The Top-Most diagram consists of three blocks: the "Describe parameters of hydrocarbon field" block, the "Check adaptability of existed methods of oil production" block, and the "Display solution" block. ... Gas methods. ...

Еще в разделе: (Показать все результаты (>490) - www.cplire.ru/ )

• Getting Started in Actor Prolog. Visual Expert Systems.
• Interstellar Radio Messages. IRE RAS.
• Making a Case for METI

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

Еще в разделе: (Показать все результаты (>31) - www.aal.lu/ )