Proceedings of the Particle Physics and Early Universe Conference (PPEUC). ... Department of Physics , University of Bristol, Tyndall Avenue, Bristol BS8 1TL, U.K. M. Birkinshaw . Department of Physics, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, U.K. We set limits to the amount of intra-supercluster gas in the Shapley Supercluster, using COBE DMR data to search for the Sunyaev-Zel'dovich effect and HEAO-1 A2 and ROSAT All-Sky Survey data to search for diffuse X-ray emission. ...

... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...

Mikhail Medvedev (University of Kansas) HEA- 2007 , IKI, Moscow Missing baryons in inter-cluster gas Afshordi, et al, 2007 , astro-ph/0612700 35% +/- 8% Sample of 260 clusters WMAP SZ 3yr data Compared with 11 simulated clusters Assumed: Universal NFW profile Self-similarity Isothermal gas Possible explanations Observed stellar mass in galaxies: ~ 10% (Lin, et al, ... Simulations indicate that the effect is small (Dolag, et al, 2004) Can account for ~1-2% missing mass at most ...

... An analysis on new observational data taken with the MPFS and SCORPIO spectrographs indicates that we are dealing with the "galactic wind": the gas is blown above the galactic plane with the characteristic velocity of about 130km/s. The gas outflow is caused by a combined action of winds from the supernovae and young massive stars located in the galaxy's circumnuclear region. ... The most probable hypothesis is that the accretion of intergalactic gas clouds is feeding their star formation. ...

... HOME . ... Richard J. Edgar, Project Scientist . DXS, the Diffuse X-ray Spectrometer instruments were flown on the STS-54 mission of the Space Shuttle Endeavour in January of 1993. ... A Summary of the First Results from the Diffuse X-ray Spectrometer Experiment . ... In January of 1993 the Diffuse X-ray Spectrometer (DXS) instruments flew on the STS-54 mission of the Space Shuttle Endeavour. ... The DXS x-ray spectrum from the diffuse background in the constellations of Puppis and Auriga. ...

EVOLUTION OF GALACTIC DISCS: TWO MODES OF STAR FORMATION ABSTRACT We develop the model of the evolution of surface gas density, stellar density, star formation rates and chemical composition of galactic disc taking into account the gravitational instability of rotating gaseous layer in the scales of several kpc. ... In the model we took into account the gas return from evolved stars, a radial movement of the gas in a spiral arms and accretion of the gas into the galactic disc. ...

Find Similar Abstracts . ... Interface between a hot and cold gas and the evolution of cold clouds in intergalactic space . ... COLD GAS, GAS-GAS INTERACTIONS, HIGH TEMPERATURE GASES, INTERGALACTIC MEDIA, TEMPERATURE GRADIENTS, THERMAL CONDUCTIVITY, CONDENSING, COOLING, ENERGY DISSIPATION, EVAPORATION, GALACTIC EVOLUTION, HEAT TRANSFER, INTERSTELLAR GAS, RADIATIVE HEAT TRANSFER, TEMPERATURE PROFILES, THERMAL DIFFUSION, THERMAL RADIATION, THERMAL STABILITY, THERMODYNAMIC EQUILIBRIUM . ...

MATHEMATICAL MODELING: . ... This model is developed on the base of the probabilistic description of the collisional aeronomical processes and is realized on a computer as the numerical system (stochastic model). ... Shematovich, V.I., Bisikalo , D.V.             Nonequilibrium processes in the planetary and cometary atmospheres. ... In Russian) . ... Piarnpuu , A. A.; and Shematovich, V. I.       Construction of structural stochastic models of collision processes in rarefied gas media (abstract) . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... Monthly Sky Notes . ... NGC 6357's inner star forming region glows with the emission of ionized hydrogen gas. Image credit: ESO/VVV Survey/D. Minniti. ... Located around 8000 light years away in the constellation of Scorpius , NGC 6357 (sometimes called the Lobster Nebula ) is a typical stellar nursery, filled with vast clouds of gas and tendrils of dark dust. ... Subscribe to Astronotes . ...

... The first domestic liquid-propellant rocket engine with afterburning of generated gas in a combustion chamber allowed to achieve a specific impulse of up to 340 kgf s/kg in vacuum when using main components. ... Fuel components: . ... fuel . ... The engine has a more heat-intensive combustion chamber, therefore, RG-1 is used as fuel. When launching heavy-lift spacecraft, synthine can be used in the capacity of fuel without re-designing the engine. ... Official WEB-site of S.P.Korolev RSC Energia . ...

... A consistent theory of turbulence has not been constructed as yet (this problem is linked with one of the one million dollar problems of the Clay Mathematics Institute), and therefore researchers all over the world rely on computer simulations to understand the underlying physics and processes in star forming environments. As computer power grows our simulations become more and more realistic, allowing us to include a lot of interesting and potentially vital physics into our models.  ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

Interstellar matter. Galaxies 77 Properties of the interstellar gas clouds I.V. Gosachinskij St.Petersburg branch of Special Astrophysical observatory, St.Petersburg, Russia The characteristics of interstellar gas clouds play the main role in any theories of star formation. ... So the neutral atomic clouds may be named as "grand parents" of stars and their properties play genetic role for whole chain of matter transformations in the galaxies. ... Ta r : T a : V : l b l b Fig. ...

N 3.3 , . ... 1 2 3 4 , On reduction of some class of regular partially invariant of gas dynamics equations for polytropic gas «» . ... 24­28 2000. ... N 3.3 , . ... 10 - - Basis of Differential Invariants For Certain Lie Groups and Its Applications . ... V. 9, No. 1, 2004, pp. ... 45, .2, 2004, 90­98 Proceedings of 10th International Conference in MOdern GRoup Analysis, Larnaca, Cyprus 2005, 92­99 J. Phys. A: Math. ... 38 4501-4516 (2005) J. Phys. A: Math. ... J. Phys. A: Math. ... 41 (2008) 265501 . ...

... The interstar media . The interstar media includes the rarefied substance (gas and dust) electromagnetic radiation, the space beams, neutrino and other kinds of materia which fill the space (see the circulation of gas and dust in the Universe ). ... The nebula of the Alter . ... The gas-dust nebulas. ... The gas nebulas galaxical are shining due to the transformation of the shot waved (ultraviolet) radiation of the very hot stars located in the nebula or near it into the visible light. ...

Общий форум . ... Ссылки по теме... x203a; x203a; x203a; в ответ на: Re: Зависимость скорости звука от давления KC . ... Re: Зависимость скорости звука от давления Александр2, 11.01.2007 08:09 . ... Re: Зависимость скорости звука от давления Oleg, 10.01.2007 12:08 . ... Re: Зависимость скорости звука от давления Давид Мзареулян, 10.01.2007 15:44 . Re: Зависимость скорости звука от давления sleo, 10.01.2007 17:07 . ... Re: Зависимость скорости звука от давления _svl, 10.01.2007 19:03 . ...

... Polar 2013 - . Polar Geophysics of Yamal: Observations, instruments, data bases . ... Nadym, October 21-25, 2013, RUSSIA . ... The program of the POLAR-2013 conference in Nadym will be devoted to following topics: . ... The International Conference ?Polar Geophysics of Yamal? is jointly organized by the Government of Yamal Region, The IZMIRAN (Troitsk), The Geophysical Center of RAS (Moscow), The Institute of Applied Geophysics (Moscow), The Arctic and Antarctic Research Institute (St.Petersburg). ...

All gas welding operations at APO must be concerned with the possibilities of ?flashbacks? or ?regulator burnout's?, protection from intense lights, sparks causing fires, and potentially explosive combinations. ... 5/16-, 3/8-inch electrodes.. ... Atomic hydrogen welding .. ... General Clothing: the type of clothing required is dependent on the size, nature, and location of the work but the following points provide general protection from the hazards created by welding, cutting, or brazing operations. ...

This is a new popup window - close it when you are done . Submitted by Al Takeda on 08/22/2013 10:08:30 . Nova Delphinus 2013 (Nova Del 2013) . This nova in Delphinus brightened to magnitude 4.6 – 4.9 when I took these series of images. A classical nova occurs when a white dwarf star, in a close orbiting binary system, picks up hydrogen gas from its companion star. ... ATMoB Clubhouse, Westford, MA, 17 August 2013. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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. ...