... CONDENSED MATTER PHYSICS SUPPLEMENTARY PROGRAM . ... Relationship between symmetry of crystal structure, point symmetry and symmetry of physical properties of crystals. ... Crystal lattice energy, Structural types. ... Typical structures of metal and semiconductor phases. ... Wave diffraction in crystals and basic methods of investigation of crystal structures, their principles, potentialities and specifics. ... Crystal optics. ... Principal methods of investigation phase transitions in solids. ...

Next: A Universal Diagram for Up: ``Ecology'' of Magnetic Rotators Previous: The Corotation Radius . The interaction of a magnetic rotator with the surrounding plasma to a large extent depends on the relation between the four characteristic radii: the stopping radius, , the gravitational capture radius,   , the light cylinder radius,   , and the corotation radius,   . ... Hence, the classification of the interaction regimes may well mean the classification of magnetic rotators. ...

Point Spread Function . The OTA spherical aberration produces a Point Spread Function (PSF--the apparent surface brightness profile of a point source), as presented to the instruments, with broad wings. ... It shows the aberrated HST PSF, the WFPC2 PSF, and for comparison the PSF that would be obtained from a long integration if HST were installed at a ground based observatory with one arcsecond seeing. ... The WF/PC-1 core was approximately 50% broader than the core that is obtained with WFPC2). ...

The parameter brief (with its actual uncertainty sbrief) is the mean effective surface brightness in B-band , i.e. the mean surface brightness inside the effective aperture (the circular aperture enclosing one-half the total flux). It is expressed in mag arcsec -2 . ... 2) from the mean surface brightness "LV" inside the effective isophote (elliptical isophote enclosing one half the total flux) measured by Launberts&Valentijn (1989) . ... Effective radius . ... HyperLeda . ...

Understanding Europa's Radiation Environment and How it Influences Landing Site Characterization G.W. Patterson, L.M. Prockter, C. Paranicas Applied Physics Laboratory Introduction · The surface of Europa is weathered by charged and neutral particles, micrometeroids, and photons. ... Background · Criteria for characterizing potential landing sites [e.g., Figueredo et al., ... 2004) Background · Criteria for characterizing potential landing sites [e.g., Figueredo et al., ... Figueredo et al., ...

Basics of one- fluid plasma description. Classic approach: forces acting upon conducting fluid. ... Magnetic Reynolds number. Magnetic field diffusion. Two- fluid plasma model. Dispersion of waves in plasma. Magnetic sound in two- fluid MHD. Oblique waves. ... Wave equation for Alfven waves in inhomogeneous plasma. ... Cusp Alfven waves. ... Surface waves in a plane geometry. Magnetosonic surface waves on field tubes. ... Plasma in strong magnetic field. ... Solar wind. ...

... Energetic magnetospheric ions are often unstable to the electromagnetic ion cyclotron (EMIC) instability . ... generation of EMIC waves below the proton gyrofrequency , and . ... Depending on the local proton gyrofrequency, the frequency of the EMIC waves varies: in the magnetosphere we deal with the ULF range (more precisely 0.1-5 Hz), while in the auroral field lines we have ELF waves (tens or hundreds of Hz; see radio frequencies and flickering aurora ). ... Space Physics Text Book of Oulu ...

The efficiency of interaction of radiation with a particle and hence its optical properties depend on the particle chemical composition, size, shape, structure, etc. ... Particle size expressed in units of the wavelength of incident radiation, together with chemical composition, most strongly affects the optical properties of a scatterer. ... There are many methods to solve the light-scattering problem for a homogeneous spheroid (our survey of the light-scattering methods see here ). ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

... Electronic structure of bulk materials . ... Electronic transport in condensed matter . ... Electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures . ... Magnetic properties and materials . ... Magnetic resonances and relaxations in condensed matter, Mossbauer effect . ... Optical properties, condensed-matter spectroscopy and other interactions of radiation and particles with condensed matter . ...

... For every level we have plotted the dependence between width and Lande factor and obtained the linear regression parameters: the inclination, the zero Lande factor line width and the correlation. ... Fig. 1. presents a model components, the intensity of which decreases (b) line with 10 and increases (c) to the center of spectral line (the field is 12 k6s). ... Our results show strong dependencies of line width on the level of width measurements. ...

Astronomy Picture of the Day . ... Our Milky Way galaxy appears to be surrounded by a halo of gamma rays. ... Blue Stagglers in Globular Clusters . ... Irregular Moons Discovered Around Uranus . ... Where did these two irregular moons of Uranus originate? Last week two previously undiscovered moons of the distant gas planet were confirmed, the first in irregular orbits. ... Most of these were discovered by the passing Voyager 2 spacecraft in 1986. ... M31: The Andromeda Galaxy . ...

... The polarimetry group at the Arcetri Observatory has been working for several years, mainly from the theoretical-interpretative side, on the polarization of the radiation emitted by objects of astrophysical interest. ... E. Landi Degl'Innocenti "The physics of polarization" in "Astrophysical Spectropolarimetry", J. Trujillo Bueno, F. Moreno Insertis, F. Sanchez (eds.), Cambridge University Press, 1. ... E. Landi Degl'Innocenti "The Zeeman effect: applications to solar physics" Astron. ...

XMMнNewton CCF Release Note XMMнCCFнRELн12 RGS Effective Area C. Erd October 4, 2000 1 CCF components Name of CCF VALDATE List of Blocks changed CAL VERSION XSCS flag RGS1 QUANTUMEF 0006 1998н01н01T00:00:00 CCD DESC, SI1, SI2, SI3, SI4, SI5, SI6, SI7, SI8, SI9, RGA EFF, RGA INTERCEPT, RGA OBSCURATE --- NO RGS2 QUANTUMEF 0006 1998н01н01T00:00:00 CCD DESC, SI1, SI2, SI3, SI4, SI5, SI6, SI7, SI8, SI9, RGA EFF, RGA INTERCEPT, ... RGS-COL-CAL-00006 Page: 4 Auth.: ... 2] Jean Cottam. ...

Kirill E. Nagaev . ... In particular, these properties can be affected by electron-electron interaction and . spin-orbit coupling, whose effects are modified by the spatial confinement of electrons. ... systems. ... pdf . ... Physical Review B 89 (23), 235412 . ... Effects of electron-electron scattering in wide ballistic microcontacts . ... Electron-electron scattering and resistivity of ballistic multimode channels . ... Electron-electron scattering and nonequilibrium noise in Sharvin contacts . ...

... 66 45' 11.1" West . Latitude (astronomical) . ... Longitude (astronomical) . ... Declination range . ... 0.4 deg/s, 1440 deg/hour . ... 0.04 deg/s, 144.0 deg/hour . ... Magnetic declination . ... Height of reflector center of curvature above MSL . ... Fixed reflector, movable feeds . Diameter of reflector . ... Area of aperture . ... Radius of curvature . ... 1 One Kelvin/Jansky (K/Jy) corresponds to 2761 m 2 effective aperture. ...

... We have carried out quantitative analyses of three very low surface gravity extreme helium stars with very similar spectra. ... In addition to the high carbon and nitrogen abundances usually seen in extreme helium stars, two of the programme stars have extremely high oxygen abundances, comparable with or greater than their carbon abundances. Based on observations obtained at the European Southern Observatory, La Silla, Chile. ...

... We present a computer program for modelling energy flux distribution and light curves of eclipsing binaries from far ultraviolet to infrared regions. The Roche model is assumed. Proximity effects of components (reflection of radiation and surface gravity darkening) are taken into account. ... Figure 1: The surface temperature distribution for Algol A-B system before (upper plot) and after (lower plot) correction for temperature due to the irradiation effect. ...

THE PARAMETERS INVOLVED IN HAPKE'S MODEL FOR ESTIMATION OF THE COMPOSITION OF THE EJECTA LUNAR TERRAINS. ... In the previous papers we were estimated the surface roughness of the ejecta lunar terrains by means comparison of the local phase function and the average integrated lunar indicatrix. ... The Hapke's theoretical model of the lunar surface reflection. ... For THE PARAMETERS INVOLVED IN HAPKE'S MODEL: S.G. Pugacheva, V.V. Shevchenko a low-albedo lunar surface parameter Bo = 1. ...

... News Research . ... Expert in the characterisation of magnetic activity and the coronae of slowly rotating (solar-type) and planet-hosting stars. ... Characterising the spectra of M dwarfs in the optical and NIR and studying the effects of strong magnetic fields. ... Experienced in modelling the coronae of planet-hosting cool stars and currently mapping magnetic fields in young pre-main sequence stars using HARPS spectropolarimetric data. ... Space Girls Space Women - Gaitee . Science Fuse . ...