... Magnetic Storms . ... Cosmic Rays . ... Energetic Particles . ... Solar fast Particles . We cannot observe the way the distant universe accelerates cosmic rays or produces energetic photons, but acceleration processes also occur on our Sun , though on a much more moderate scale. ... That is why such events are often missed by cosmic ray detectors near the equator, where the lowest energies are excluded by the Earth's magnetic field. ... Should we be concerned about solar energetic radiation? ...

... The Magnetic Sun . ... Galileo had guessed they were clouds floating in the Sun's atmosphere, obscuring some of its light. ... It turned out that the Sun has a polar field somewhat like the Earth's, but that it reverses its polarity during each 11-year cycle. ... Sunspot fields were evidently produced by electric currents, and it was well known that such currents could be generated by a " dynamo process ," by the motion of an electric conductor (e.g. the flow of solar plasma) through a magnetic...

... Apache HTTP Server Version 2.4 . ... This Multi-Processing Module (MPM) implements a non-threaded, pre-forking web server. ... Apache httpd always tries to maintain several spare or idle server processes, which stand ready to serve incoming requests. ... Maximum number of idle child server processes . ... The MaxSpareServers directive sets the desired maximum number of idle child server processes. ... The MinSpareServers directive sets the desired minimum number of idle child server processes. ...

... Apache HTTP Server Version 2.2 . ... This Multi-Processing Module (MPM) implements a non-threaded, pre-forking web server that handles requests in a manner similar to Apache 1.3. ... Apache always tries to maintain several spare or idle server processes, which stand ready to serve incoming requests. ... Maximum number of idle child server processes . ... Minimum number of idle child server processes . ... The MinSpareServers directive sets the desired minimum number of idle child server processes. ...

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... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

This document explains some of the directives provided by the core server which are used to configure the basic operations of the server. ... Process Creation . Network Configuration . ... User . ... A single control process is responsible for launching child processes which listen for connections and serve them when they arrive. ... The User and Group directives are used to set the privileges of the Apache child processes. ... The child process creates multiple threads to serve requests. ...

Main plasma parameters for inhomogeneous plasma. ... Particle motion in the Earth dipole magnetic field. ... Bounce frequency and bounce motion in the Earth inner magnetopshere. ... Low- frequency electrostatic waves in inhomogeneous low- beta plasma. ... Kinetic drift instability. ... Permittivity tensor for electromagnetic low- frequency waves in inhomogeneous low- beta plasma. Drift Alfven waves. ... Spectra of electromagnetic low- frequency waves in inhomogeneous medium- beta plasma. ...

... Observatory . ... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > My OFFSET data are not processed. ... Observing Facilities . ... Instrumentation Development . ... Observing with ESO Telescopes . ... Data Reduction FAQ . ... Offset mode data containing only object or only sky data cannot be processed by the pipeline. ... The DataOrganiser in the current release will not mark such DataSets as incomplete and the recipe xsh_scired_slit_offset will fail. ...

... Posts tagged ?particle filter? ... Astronomers have developed their ways of processing signals almost independent to but sometimes collaboratively with engineers, although the fundamental of signal processing is same: extracting information. ... This particular issue of IEEE signal processing magazine may shed lights for astronomers interested in signal processing and statistics outside the astronomical society. IEEE Signal Processing Magazine Jul. ... ArXiv] 3rd week, Dec. ... Entries RSS . ...

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) . ...

... HST . ... HST Peer Review Process . ... Science Blog . ... HST Overview . Overview . ... Retrieving HST Data . ... DrizzlePac . HST Science Year in Review . ... DrizzlePac Handbook . ... DrizzlePac Brochure . ... Inspecting the Drizzled Products from MAST . Should the images be reprocessed? Are the pipeline drizzled products adequate for the science goals? Examine the Drizzled Science Image . ... Examine the Drizzled Weight Image . ... Examine the Drizzled Weight Image Copyright | ...

A limit on the ultra-high-energy neutrino flux from Centaurus A Justin Bray For the LUNASKA collaboration Clancy James, Ron Ekers, Chris Phillips, Paul Roberts, John Reynolds, Rebecca McFadden, Ray Protheroe, Jaime Alvarez-MuЯiz, Justin Bray Outline: · Ultra-high-energy (UHE) cosmic rays neutrinos · Detecting UHE neutrinos · The lunar Cherenkov technique · Observations with the ATCA · Observations with Parkes · ASKAP and the future ... Detection Geometry Neutrinos are penetrating.. ...

... an error occurred while processing this directive] The EMOSn_REDIST CCFs with version numbers greater than 0051 are only compatible with SAS version 6.5 and beyond. ... We recommend that you use the latest SAS version (currently 6.5) with the latest redistribution CCFs. ... If you cannot upgrade to SAS 6.5 then it is essential to build calibration interface files using the analysis date option within cifbuild to EXCLUDE the new files. e.g. cifbuild analysisdate="2005-07-01" . ...

Next: Case B: Up: No Title Previous: Mergingology . In this case, we can expect that after the merging a black hole results from a direct collapse during the time and that the most energy is emitted in the gravitational wave burst. ... In addition, a certain fraction of radiated energy can be related with the pulsar mechanism (Lipunov & Panchenko 1996; Lipunova 1997). No gravitationally bound object can be formed in this case outside the horizon. ... GWB -- gravitational waves burst, . ...

... A Particle Beam Jet forms HH 24 . ... Credit Copyright: Hubble Legacy Archive , NASA , ESA - Processing: Judy Schmidt Explanation: If you visit HH 24, don't go near the particle beam jet. ... The above image was taken by the Hubble Space Telescope in infrared light in order to better understand turbulent star forming regions known as Young Stellar Objects (YSOs). Frequently when a star forms, a disk of dust and gas circles the YSO causing a powerful central jets to appear. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2014 February 4 . A Particle Beam Jet forms HH 24 . Image Credit: Hubble Legacy Archive , NASA , ESA - Processing: Judy Schmidt . Explanation: If you visit HH 24, don't go near the particle beam jet. ... Frequently when a star forms, a disk of dust and gas circles the YSO causing a powerful central jets to appear. ... About APOD | ...

Most of these images were obtained by Mike Bessell, Michelle Buxton, Hwankyung Sung, Ralph Sutherland and Bob Watson at SSO using a 2Kx2K Site CCD behind a Nikon or Hasselblad lens or directly on the 1m telescope. A few images are from the Hubble Space Telescope. Some of the M42 images were obtained with the KPNO 1m and ESO NTT telescope. One image is a mosaic of IRAS images. ... Details of the CCD imaging program at MSSSO. ... antenna.jpg (53KB) . ... ngc6744.jpg (59KB) . ...

... Acceleration of particles in the vicinity of a massive black hole We propose a two-step mechanism for charged particle acceleration in the magnetosphere of a massive black hole surrounded by an accretion disk. Particles first gain energy by stochastic process during the accretion phase. It is shown that effective proton acceleration up to energies eV is possible in the turbulent magnetized accretion disk. ...

. Name of process . Radiative Transitions . Phoionization . Photorecombination . Dielectronic Recombination . Autoionization . Electron Impact Excitation . Electron Impact Ionization . Charge Transfer . Proton Impact Excitation and Ionization . Collisions with heavy particles . Auger Processes .