... In the presence of only uniform magnetic field B , the motion of a charged particle can be described with gyration about the guiding center and motion along the field line. ... In the precence of both magnetic and electric fields, the equation of motion for charged particle (mass m, charge q) is m d v /dt = q ( E + v x B ). ... Because v is independent of the mass and sign of the charge, it is the same for negatively and positively charged particles, and does not create electric current. ...

... Listed below are questions submitted by users of "The Exploration of the Earth's Magnetosphere" and the answers given to them. ... The ones included below are either of the sort that keeps coming up again and again--the danger of solar eruptions, the reversal of the Earth's magnetic field, etc.-- or else the answers make a special point, going into extra details which might interest other users. ... Radiation Belts and Manned Space Flight . ... Capturing the Energy of the Solar Wind . ...

The space between the planets is far from empty. It contains: electromagnetic radiation (photons); hot plasma (electrons, protons and other ions) a.k.a. the solar wind ; cosmic rays; microscopic dust particles; and magnetic fields (primarily the Sun's). While the Sun 's radiation is obvious, the other components of the interplanetary medium were not discovered until very recently. ... Except near some of the planets, interplanetary space is filled with the Sun's magnetic field. ... Sun .. ...

Light scattering by multi-layered ellipsoidal particles in quasi-static approximation V.G. Farafonov St.Petersburg University of Aerocosmic Instrumentation St.Petersburg, 190000, Russia and V.B.Il'in Astronomical Institute, St.Petersburg ... University St.Petersburg, 198504, Russia ABSTRACT Calculation of light scattering by finite size non-axisymmetric inhomogeneous particles is a complicated problem whose solution by the exact methods (e.g., the Discrete Dipole ... Spectr. ...

... part 1 | ... The Basic Stages in Earth's Pre-geological Development . ... After fragments of the Vortex sleeves separated, whirlwinds of second and third orders ("NC" - new micro-vortex) were generated- future planet cores and their satellites - all of them developing independently, governed by the common laws of development of cosmogenic vortexes. ... Our planet's core today is comprised of considerably deteriorated cosmogenic vortex; consequently, the Earth has a moderated magnetic field. ...

The Satellite Telescope of Electrons and Protons STEP . ... Precision measurements of the energy, angular, and time distributions in precipitating fluxes of high-energy charged particles with solar, magnetospheric, and anomalous cosmic rays origin. ... Both "STEP-DI" and "STEP-DII" have an identical construction of large solid angle telescope from 4 detectors (D1-D4), first 2 of which (D1-D2) are position-sensitive silicon strip-detectors; both D3 and D4 are scintillation CsI(Tl) detectors. ...

... Auroras and the Magnetosphere of Jupiter . ... Credit Copyright: NASA , ESA , Chandra , Hubble Explanation: Jupiter has auroras. ... In the inset image released last month, the Earth-orbiting Chandra X-ray Observatory shows unexpectedly powerful X-ray light emitted by Jovian auroras, depicted in false-colored purple. ... This aurora on Jupiter was seen in October 2011 , several days after the Sun emitted a powerful Coronal Mass Ejection (CME). ... Publications with keywords: Jupiter - aurora . ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... We have examined the propagation of cosmic rays through turbulent magnetic fields as described by Lee and Clay (1995) and Clay (2000). We used a random magnetic field with a turbulent Kolmogorov spectrum and a maximum scale size of 100pc. ...

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

Photon/Particle Counting Image Measurement System : PIAS-TI . The PIAS-TI is an extremely sensitive image measurement device developed for imaging and quantification in ultimate levels with an extremely small number of photons, electrons and charged particles. ... The PIAS-TI is a measuring system that makes use of the technology of the photon counter to detect the input positions of individual photons or particles, and accumulate them to create an image. ...

... The Sun is the closest star to us, and a regular object in our Galaxy. Solar activity manifests itself, primarily, in solar flares - episodic explosive energy release in the form of electromagnetic radiation and high energy particles (electrons and protons). The nature of the flares is related to cyclic variations of global and local magnetic fields in the atmosphere of the Sun. ... Such formations are called active regions. ...

... 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. ...

... STScI-PRC00-04 AN EXPANDING BUBBLE IN SPACE Astronomers, using the Wide Field Planetary Camera 2 on board NASA's Hubble Space Telescope in October and November 1997 and April 1999, imaged the Bubble Nebula (NGC 7635) with unprecedented clarity. ... The remarkably spherical "Bubble" marks the boundary between an intense wind of particles from the star and the more quiescent interior of the nebula. ... To the right of the central star is a ridge of much denser gas. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Publications of the ASP (PASP) . ... Ghostly Particles All About . ... Rather than give up on this problem, Pauli?s imagination leaped in that darkness, and our understanding of Nature was propelled forward. ... Radioactivity refers to the process by which really big nuclei, which are made of large numbers of protons and neutral neutrons?like, say, nuclei of uranium or radium?rid themselves of excess energy. ...

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

... STScI previously used Microsoft Word and Microsoft Access, a Sybase ODBC driver, and the Adobe Acrobat PDF writer, along with a substantial amount of Visual Basic, to generate a variety of documents for the internal Space Telescope Grants Administration System (STGMS). ... To create a document, the internal STGMS application invoked a VB program which launched Microsoft Word and Microsoft Access, Access extracted the required data from a Sybase database using ODBC into an Access table. ...

Next: Error Determination Up: *qpspec* - Extraction of Previous: Spectral Extraction of Extended . Charged particles can be removed from the source and background spectra using the master veto (MV) rate. ... For example, if MV rate = 100, the following command will remove the charged particles in the background and source spectra before determining the net spectrum. xs > qpspec vign_corr=yes avg_mvr=100 . ...

... Study of charged particles dynamics in magnetic field under microgravity conditions ( «Kulonovskiy Kristall» ) . Basic research of charged particles behavior mechanism under microgravity conditions . ... Testing the methods and aids to conduct biotechnological studies under space flight conditions . ... Development of the methods and onboard techniques to provide aseptic conditions for conduct of biotechnological experiments under manned space flight conditions ( «Aseptic» ) . ...

The HTSC group has an access to a set of technological equipment for thin film preparation and laboratory measurement system for low temperature electrical measurements. The technological complex of the " Thin Film Oxide Electronics " Laboratory includes two clean rooms of the "1000" class, with a complete set of equipment for photolithography (spinner, oven, hot plate, mask aligner, chemical bench, de-ionized water source) in each clean room. ...