. Language [RU/EN] Search: . Home . UP . Research . Projects . Services . Info . News . Events . Personal . Archive . Ionosphere and radiowave propagation: structure . The main page . Information . Publications: . 2011 - 2015 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2000 - 2004 . 1995 - 1999 . Participation in International symposiums and conferences: . 2013 - 2015 . 2011 - 2012 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2002 - 2004 . N.V. Pushkov . 09/04/2016 23:52 MSK . webmaster@izmiran.ru .

... The Irkutsk IS radar has the opportinuty to measure several ionospheric plasma parameters such as electron density N e , electron and ion temperatures T e , T i , and drift plasma velocity along the sounding direction. ... To the 1999-2001 data we have added the E-layer ionosphere model to electron concentration profile, which has been constructed by integral concentration from the ionosphere beginning from 160 km obtained from experiment. ... Capabilities and samples | ...

... We study the variation of the line width and electron density as a function of height above the north polar coronal hole from forbidden spectral lines of Si VIII. The spectra were obtained with the Solar Ultraviolet Measurement of Emitted Radiation spectrometer flown on the Solar and Heliospheric Observatory spacecraft.The present data show that the non-thermal velocity increases from at 27 arcsec above the limb to some 250 arcsec ( 180,000 km) above the limb. ...

Proposal Identi cation No.: T1057 Date Received: 1997-Oct- 1 20:15:45 Technical Page Proposal Type: Regular General Category: Terrestrial Aeronomy Sub-Category: Radar Observation Category: Ionospheric Total Time Requested: 36 Hours Proposal Title: Study of unusual electron distribution functions in the winter day time E-region ABSTRACT: The variations of the density, temperature and energy distribution function of the electrons may give some clues about the energy balance in the Ionosphere. ...

... Status of the ELECTRON experiment . ... The objective of the ELECTRON experiment is to perform 3-D measurements of the plasma electrons in the energy range from 10 eV to 26000 eV, with good angular resolution, sensitivity and large dynamical range. ... Figure 1 presents the ELECTRON sensor. ... Click on the picture to view large one) . ... Figure 3 shows dynamical spectra with counting rate measurements performed by ELECTRON experiment during very multiple magnetopause crossings on February, 4, 1996...

ION AND ELECTRON ENERGY DETECTOR PAN-2 . ... The energy and angular distributions of charged particles can bring further information on the nature and spatial scales of magnetospheres processes. ... It permits the fast measurements of energy and angular parameters of charged particles in the range 40eV-40keV. ... The sensor unit is an electron electrostatic, axially symmetrical, toroidal analyzer. ... The energy range for both types of charged particles must stepped according to the logarithmic scale. ...

... 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? ...

Neutron Monitors ] [ Solar Neutrons ] [ Muon Telescopes ] [ Base Potchefstroom University ] [ Magnetometers ] [ GPS systems ] [ Ionosphere ] [ Related Data ] [ Space Weather ] . ... All Cosmic Ray Stations + InterPlanetary Data: WorldNet . Alma-AtaB (Mt.Tien Shan) DataBase of Kazakhstan Spectrograph Alma-AtaB (Mt.Tien Shan) new . ... Nagoya Muon Telescope and DATA or mail . ... Belgrade Muon Telescopes and DATA or ">mail . ... Real-Time database for Cosmic Ray Anisotropy (DB10) . ...

... Empirical and theoretical modeling of 3-D structures in the solar corona is confronted by the tremendous amount of data needed to represent phenomena with a large dynamic range both in size and magnitude, and with a rapid temporal evolution. Octree representation of the 3-D coronal electron distribution offers the right compromise between resolution and size, allowing computation of synthetic images of the solar corona. ... The time interval between images is one day. ...

BACKGROUND . ... Electron bombarded silicon (EBS) gain makes the CCD interesting for keV electron detection. Ionizing particles absorbed in silicon create electron-hole pairs at the average rate of one per 3.64 eV incident energy. ... The variance in the number of electron-hole pairs created is given by the Fano factor for silicon (.1-.2) times the number of pairs created. When we use a CCD as a detector of ionizing particles, we would like to collect all of the electrons created. ...

... These states can rapidly acquire charge as the potential well fills. ... The movement of electrons creates a drift component caused by the lateral electric field (this is a reflection of variations in the surface potential). ... This leads to two problems 1. if the voltage on gate one is reduce too slowly then the potential well under the gate retains charge 2. if reduced too quickly, majority carriers will return from the bulk to the surface and recombine causing a serious loss of charge. ...

. Introduction Archie Howie (Cambridge) . Electron Centenary Lecture Michael Green (DAMTP, Cambridge) . Last updated 17 May 1997, Richard Batley

... RAS members working in ISSP . ... Electrons in Disordered Media . ... The course deals with state-of-the-art concepts of electron behavior at low temperatures in disordered media such as highly doped semiconductors, amorphous metals, conducting materials in the vicinity of phase transitions. ... Disordered high density electron systems. Liquid metals. ... Resistance saturation in metals with strong electron-phonon interaction. Absence of Anderson localization in high density electron systems. ...

... Russian Academy of Sciences, Department of Physical Sciences , Project number . ... Bicrystal junction and heterostructures made of cuprate oxide material with strong correlated electrons will be investigated. ... DC, microwave and noise properties of the junction will be investigated. ... To investigate noise spectral density in oxide superconducting bicrystal junction. ... To develop new type of bicrystal junction with misorientation of c axes around the basic plane axes. ...

High Precision Timing of 20 Millisecond Pulsars Supervised by Dr Aidan W. Hotan Presented by Kranav Sharma M.Sc. (2nd year) Physics Curtin University of Technology Contents · Introduction · Component Masses and Orbital Inclinations · Dispersion Measure Variations and Free Electron Densities · Proper Motion and Velocities · The Four Different Ages of MSPs Introduction · The pipeline processed seven years (2003 ­ 2010.5) observational data was acquired from the ATNF pulsar timing array database. ...

... These are the typical steps through which a CCD image has to go. ... That process is repeated until all the pixels from the 1st line are read out. ... Figure 1: raw CCD image, obtained with a Tektronics 1024; refer to the bottom of the page for the technical details. ... The corresponding raw image presents all the defects and artifacts of the CCD and the telescope. ... These are the most basic steps; every image published should have received the following corrections. ... IfA Hale-Bopp page | ...

... 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. ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

... Во-первых, даже при нулевой температуре внутренняя энергия электронов не равна нулю, и газ имеет вполне конечное давление. Во-вторых, давление такого газа очень слабо зависит от температуры, до тех пор, пока температура не достигнет определенного уровня, при котором газ уже нельзя рассматривать как вырожденный ( температура вырождения ). ... Таким образом, давление зависит только от плотности и растет с плотностью существенно быстрее, чем для идеального газа. ... Звезды . ...

. This Directory contains Model of distribution of density, temperature and effective collision freguency of electrons. Yu.K.Chasovitin. 1998. This Directory contains The program RIM98 for calculating the parameters of the ionosphere to use the "Reference Ionospheric Model-98" (RIM-98).Yu.K.Chasovitin. 1998.