... 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. ...