... David P. Stern Laboratory for Extraterrestrial Physics NASA . ... Alfv?n's Theory and Electric Fields . ... The debate between proponents of a static corona, Parker's solar wind theory, and an alternative "solar breeze" theory of Chamberlai n [1960, 1961; Dessler 1967] was only settled by observations from space. ... Rapidly spreading plasma clouds produced by solar flares, like those envisioned by Chapman and Ferraro, are sometimes superposed on the solar wind flow. ...

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• The Solar Wind
• The Motion of Magnetically Trapped Particles -- History

... Credit Copyright: Daniele Boffelli Explanation: Auroras usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact the Earth's magnetosphere , from which charged particles spiral along the Earth's magnetic field to strike atoms and molecules high in the Earth's atmosphere . ... The relative heights of clouds and auroras are shown clearly in the featured picture from Dyrholaey, Iceland. ... Publications with keywords: aurora - clouds . ...

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• Aurora Over Clouds
• Астронет > Aurora Over Clouds
• Астронет > Earth, Clouds, Sky, Comet

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 November 24 . Aurora over Clouds . ... Explanation: Auroras usually occur high above the clouds. ... There, a determined astrophotographer withstood high winds and initially overcast skies in an attempt to capture aurora over a picturesque lighthouse , only to take, by chance, the featured picture along the way . ... About APOD | ...

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• APOD: 2003 September 10 - Aurora Over Clouds
• APOD: 2001 April 2 - Aurora Over Clouds
• APOD: April 3, 1997 - Earth, Clouds, Sky, Comet

... Files in red?history) . ... Trapped Motion . ... 10a. Particle Drift . ... Fast Particles . ... The fact charged particles circle around field lines was well known to J.J. Thomson when he experimented with electron and ion beams in a magnetic field. ... The notion of adiabatic invariance is tied with the early years of quantum theory. ... By about1910, physicists realized that these patterns indicated changes in the laws of physics as one approached atomic dimensions. ...

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• The Solar Wind
• Energetic Particles
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... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

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• http://www.naic.edu/~astro/talks/abstracts/raizada_16sep05.htm
• http://www.naic.edu/~rminchin/press/VIRGOHI21_press_release.doc

... Posts tagged ?LHC? ... As far as I know SUSY is the abbreviation of SUperSYmetricity in particle physics. ... Comment . ... I was delighted to see his introductory article about particle physics and its statistical challenges from an [arxiv:stat] email subscription. ... Category: arXiv , Bayesian , Cross-Cultural , Data Processing , Frequentist , High-Energy , Methods , Physics , Stat | ... As the first light from Fermi or GLAST, LHC First Beam is also a big moment for particle physicists. ...

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• The AstroStat Slog particle physics
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... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... As we close in on part of the small constellation of Corona Australis we start to see faint clouds and in the final part of the video the full glory of the dramatic star formation region NGC 6729 is revealed in a new image from the FORS1 instrument on ESOтАЩs Very Large Telescope. ...

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• how crystals fall
• Detailed view of the Prawn Nebula from ESO's VST | ESO

... High-velocity clouds (HVCs) were discovered by Muller, Oort & Raimond (1963) in the 21-cm line emission of neutral, atomic hydrogen. They are gas clouds which are characterised by high radial velocities incompatible with a participation in the rotation of our Galaxy. ... This suggestion was seized by Braun & Burton (1999) who identified 66 compact high-velocity clouds (CHVCs) with positional and kinematic characteristics being compatible with a distribution across the entire Local Group. ...

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• Research - All-sky map of high-velocity clouds
• The Central Molecular Clouds in NGC 1808
• Alfvц©n Waves in Dusty Interstellar Clouds.

We present an analysis of the stellar kinematics of the Large Magellanic Cloud (LMC) based on ~5900 new and existing velocities of massive red supergiants, oxygen-rich and carbon-rich asymptotic giant branch (AGB) stars, and other giants. ... The metallicity differences provide strong evidence that the kinematically distinct population originated in the Small Magellanic Cloud. ...

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• Probing the Dust Responsible for Small Magellanic Cloud Extinction
• Spitzer Survey of the Large Magellanic Cloud, Surveying the Agents of a
• LABOCA observations of giant molecular clouds in the southwest region of the

Next: Visitors and Seminars Up: Research Previous: M. de Groot, Consultant Contents . ... Zodiacal Cloud . ... The zodiacal cloud is a disc of dust orbiting within the inner planetary system. ... Existing models of the zodiacal cloud have always adopted an equilibrum assumption, in which the input from comet and asteroid disintegration balances the output from collisional grinding between the dust particles and their removal by the Poynting-Robertson effect. ...

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• Armagh Observatory
• Leonid Press Release
• C.J. Butler, Research Astronomer

... Project page . ... Project workpage . Turbulence in the Multiphase Interstellar Medium . Project I | ... Project highlight | ... Towards simulating turbulence with adaptive meshes . ... A. Kritsuk, P. Padoan, M. Norman . ... A. Kritsuk M. Norman . ... A. Kritsuk, M. Norman, P. Padoan . astro-ph/0411626 | ... P. Padoan, A. Kritsuk, M. Norman, A. Nordlund . ... Introducing Enzo, an AMR Cosmology Application . B. O'Shea, G. Bryan, J. Bordner, M. Norman, T. Abel, R. Harkness, A. Kritsuk . ...

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• Polarization properties (transmitted radiation)
• Database of Optical Properties -- Level: subpage
• Extinction properties (transmitted radiation)

... The black cloud. In science fiction novel ''The black cloud'', written by Sir Fred Hoyle in 1957, an interstellar dark cloud is discovered approaching the solar system. ... Two photographs given below show a small region inside the constellation of Orion. ... In how many years (after the second image) the cloud will entirely cover the belt of Orion (seen on the left)? ... In how many years (after the second image) the cloud will arrive at the Earth? ... 2 0 1 2 C ox's Baz ar , Bangladesh ...

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Scaling relations and intrinsic motions in the interstellar neutral hydrogen clouds . ... Diameters, masses and velocity dispersions of about 7600 HI clouds were determined on the base of HI RATAN-600 Survey in the second and third quadrants of galactic longitudes in 180 degree 100 dg. ... It is shown that other important dependence - velocity dispersion versus cloud diameters, that is found from molecular clouds, in the case of HI clouds is completely absent ( figure 2 ). ... Figure 1. ...

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• Results scientific researchs 21
• Interstellar Clouds Conference Homepage

... Bad Astronomy . ... Bitesize Astronomy . ... I turned back to the Moon, and noticed a red glow to the sky. ... Figuring it was simply a high altitude cirrus cloud illuminated by the just-set Sun, we went back in. I logged on to my computer to check my email, and found one from a woman who had also seen the red glow, and asked me if it were an aurora. ... So when I do see something odd, I'll have to be careful lest I fall the other way, and think every red cloud is an aurora. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bad News:
• Phil Plait's Bad Astronomy: Misconceptions: James McCanney's Nonsense
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

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• Wave Processes in Inhomogeneous Plasma

... 101) Байки из Фидо (7) Литература (16) Листая страницы прошлого Выберите месяц Апрель 2016 (2) Март 2016 (4) Февраль 2016 (4) Январь 2016 (5) Декабрь 2015 (4) Ноябрь 2015 (3) Октябрь 2015 (5) Сентябрь 2015 (5) Август 2015 (5) Июль 2015 (5) Июнь 2015 (4) Май 2015 (8) Апрель 2015 (5) Март 2015 (4) Февраль 2015 (4) Январь 2015 (7) Декабрь 2014 (7) Ноябрь 2014 (4) Октябрь 2014 (5) Сентябрь 2014 (8) Август 2014 (8) Июль 2014 (6) Июнь 2014 (7) Май 2014 (11) Апрель 2014 ...

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• Clouds over town
• Evening clouds
• Clouds

... STScI-PRC00-36 GHOSTLY REFLECTIONS IN THE PLEIADES NASA's Hubble Space Telescope has caught the eerie, wispy tendrils of a dark interstellar cloud being destroyed by the passage of one of the brightest stars in the Pleiades star cluster. ... In 1890, American astronomer E. E. Barnard, observing visually with the Lick Observatory 36-inch telescope in California, discovered an exceptionally bright nebulosity adjacent to the bright Pleiades star Merope. ...

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• Martian Clouds
• Voyager Neptune Science Summary
• APOD: 2000 July 20 - AR9077: Solar Magnetic Arcade

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. ...

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• http://www.gao.spb.ru/english/as/j2014/presentations/filippova.pdf

... 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. ...

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• Keywords_133

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Particle physics and astronomy are coming together to explain how the Universe was created and how it evolved into what we see today. PPARC supports UK research into the fundamental nature of the Universe,and helps. ... 44(0)1793 442000 . ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . ...

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• Firtual Particles Are Not Only Particle Pairs - an Astronomy Net Blackholes2
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