The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... That produces an extra resistance to the flow of current. ...

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... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

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... NVIDIA, the NVIDIA logo, NVIDIA nForce, GeForce, NVIDIA Quadro, Vanta, TNT2, TNT, RIVA, RIVA TNT, Quincunx Antialiasing, and TwinView are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries. Linux is a registered trademark of Linus Torvalds. ... OpenGL is a registered trademark of Silicon Graphics Inc. ... Installing the NVIDIA Driver . ... Configuring X for the NVIDIA Driver . Using nvidia-xconfig to configure the X server . ...

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AGP=Accelerated Graphics Port . ... 132 PIN EDGE CONNECTOR at the computer. ... Reserved* Ground . ... Ground . ... VCC 3.3 . ... Vddq 3.3 . ... AGP pinout at The Pin-Out directory . ...

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Blackholes2 Forum Message . Forums: . ... Discussion Forums | ... Post . ... It Does Not Accelerate- It Has No Mass . Forum List | ... Post Message | ... Posted by Richard Ruquist on November 18, 2002 01:42:37 UTC . Light already goes at the speed of light. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... The Effect of Synchrotron Losses on Multiple Diffusive Shock Acceleration . ... The effect of synchrotron losses on diffusive shock acceleration (DSA) at many shocks is treated numerically. Synchrotron losses determine a maximum energy to which electrons can be accelerated through DSA, and this is referred to as the synchrotron cutoff, . ... Alternative treatment of DSA with synchrotron losses . ...

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. Корабль Lucky Seven в представлении художника . Иллюстрация с вебсайта Spacefleet .

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Research . ... My work primarily deals with supernova, specifically type Ia supernova. Type Ia's have been shown and used as "standard candles", an astronomical meter stick to measure how fast the universe is accelerating. ... As a result of their beneficial use, many supernova surveys were started in order to dive deeper into the cosmological realm. ... The host galaxy of a supernova has a big impact on its formation and its use as a standard candle. ...

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... Astrophysics Group . ... Software for Astrophysics . CosmoNet . ... CosmoNet Downloads . ... It uses multilayer perceptron neural networks to accurately determine CMB power spectra (temperature and polarisation), the matter transfer function and experimental likelihoods from the WMAP 3-year data. ... Download the original letter astro-ph/0608174 . Download the latest paper astro-ph/0703445 which includes our latest release capable of computing both flat and non-flat cosmologies. ...

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Fellow Astronomer and Institute Science Division Head, Mario Livio, has recently published a new book, "The Accelerating Universe: Infinite Expansion, the Cosmological Constant, and the Beauty of the Cosmos". Mario describes the book as "discussing beauty as an essential ingredient of fundamental theories of the universe", and states that it was written to be fully understandable to the non-professional reader. ... We extend our congratulations on this new accomplishment! ...

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Diamond's Stealth 64 Video VRAM is the perfect choice for graphics and video performance. ... The Diamond Stealth 64 Video continues our award-winning tradition, delivering the best price / performance multimedia accelerators available. ... 64-bit graphics performance . ... Designed around a solid 64-bit graphics engine, the Stealth 64 Video VRAM provides unparalleled performance in any environment. ... The Stealth 64 Video VRAM includes hardware to accelerate video playback on the Windows desktop. ...

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... ,E_=v_B_z,B_z0 Light cylinder at RL U = electric voltage created by rotating BH I = large scale current I U LK Centrifugal acceleration in BH magnetosphere Assume `reasonable' B and E fields, from current I : Bz = 0 = v/v 1 Motion of a test particle P ( ) Light cylinder Pz() P() z() Here = 0.01 and = rc,i/RL = 0.01 Growth of particle Lorentz factor ( ) log k At light cylinder : = Here with initial value is the absolute maximal reachable by this process (ie no ...

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YORP: Influence on Rotation Rate . ... We have developed a semi-analytical model for calculating angular acceleration of asteroids due to Yarkovsky O'Keefe Radzievskii Paddack (YORP) effect. ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), near-Earth asteroids (NEAs), rotation rate, calculating angular acceleration of asteroids, Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect, elliptic orbits, thermal inertia of the asteroid's surface, the asteroid 1620 Geographos. ...

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... CI Cam (XTE J0421+560) is an X-ray transient and a binary system the optical companion, which shows the B[e] phenomenon. ... The centroid velocities of the following emission lines were measured: FeII (5 lines), [N II] 5754.59A (NIST Database), H_alpha, H_beta, HeI (5 lines), and [O III] 5006.843A. FeII and [N II] lines that form in the cool equatorial disk wind of B[e] star have stable sharp-edge profiles. ... All the FeII lines and the [N II] line in our spectra show a linear shift with time. ...

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... 2000 October 30 . A Step Toward Gravitational Wave Detection . ... Explanation: Accelerate a charge and you'll get electromagnetic radiation : light. But accelerate any mass and you'll get gravitational radiation . Light is seen all the time, but, so far, a confirmed direct detection of gravitational radiation has yet to be made . ... APOD mourns the recent passing of Joseph Weber , a visionary thinker and pioneer in gravitational wave detection. ... About APOD | ...

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Contents and Select Excerpts . ... Winter 2008 . This page contains the table of contents and select excerpts only and is not a complete reproduction of this issue. Complete content for online Mercury is available to ASP members and institutional subscribers . ... The Mystery of Dark Energy, Robert Naeye . ... Melted Crumbs from Asteroid Vesta, Linda M.V. Martel . ... Astronomy in the News . ... Annals of Astronomy, Clifford J. Cunningham . ... ASP 2008 Meeting, Andrew Fraknoi . ...

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. Planetary Approach . "Final Stage of the Hohmann Transfer" . Previous . Main . Next .

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