... the radiative transfer equation (RTE) for the randomly-irregular magnetized plasma has been derived on the base of general grounds of the multiple scattering theory . ... Solutions of several absolute tasks of the scattering theory have been obtained (on the optical depth of the ionospheric plasma layer, on the value of radio wave anomalous attenuation, on anomalous refraction, on the backscattered signal intensity for the source being placed within a plasma layer). ...

... Matrix of Transformation | ... Software | ... The software includes: . attidf.for - a FORTRAN subroutine to get a matrix M (named PA in the subroutine text) to transform any vector from the S/C coordinate system to the GSE coordinate system: . V GSE = M * V S/C . To transform a vector from the GSE coordinate system to the S/C coordinate system transpose the matrix M: . ... We want to know the direction of this vector in the GSE frame for date: 30.05.1997, time 1h.0min.0sec. ut. ...

External influences on spin parameters for INTERBALL - AP . ... The main interest is that almost all kind of external influences to parameters of motion (eclipse, normalization, ROS) are presented in the one time interval. Three upper panels illustrate the spin velocity, the angle between kinetic moment and sun direction, and the nutation.All external events are represented on the lowest panel as blue, green and yellow columns. ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . ... In July, 1976, Viking Orbiter 1 was acquiring images of the Cydonia region of Mars as part of the search for potential landing sites for Viking Lander 2. ... Using the height field, it is also possible to view the "Face" from different look directions, by mapping the Viking Orbiter image directly on the the topography and then placing the "viewer" at different locations. ... Mars . ...

... PTSLEW is the time allowed in a pointing sequence to get to source before beginning the raster. ... In actual use, if a scan start time is specified, the interval between that start time and the previous stop time is added to the PTSLEW to set the duration of the slewing scan. For most pointing observations, it is probably best to set PTSLEW to something small, perhaps the same as PTDUR , and use dwell time scheduling. ... Default: 160 , a sensible choice. Usage: Defaults to previous scan. ...

... Stars and Dust Through Baades Window . ... Billions of stars light up the direction toward the center of our Galaxy. ... The December solstice brings the beginning of Winter to Earth's Northern Hemisphere and Summer time to the South! This view of Earth's Southern Hemisphere near the beginning of Summer was created using images from the Galileo spacecraft taken during its December 1990 flyby of our fair planet. ... Night and Day in Melas Chasma on Mars . ... IC 418: The Spirograph Nebula . ...

NOVAC Newsletter - Reflections On 1982 . Articles | ... Richard Lawson . ... Attending this observation was Nils Thomas, John Huggins, Richard Lawson, Bob Koberg and his kids, David Edwards and Bryan Bloomer. ... Nils, John, Richard and A.J. Piccillo met for the July lunar eclipse. ... Twelve days later Nils, John, Richard, and Ian Babcock attended a scheduled NOVAC observation. ... Attending were Nils, John, A.J., Richard and Blaine Korcel. ... www.astronomy.net . About Astronomy Net | ...

... More than 300 surface reconstructions are already known for pure Si surface and Si surface with adsorbate. Study of their properties by the methods of surface physics reveal numerous interesting phenomena including various phase transitions accompanied by changes of Fermi-surface topology, development of the charge-density wave, etc . ... The charge-density wave (CDW) develops in materials with a chain-like crystal structure at temperatures below the Peierls transition temperature. ...

... Posts tagged ?interval? ... I?ve been heard so much, without knowing fundamental reasons (most likely physics), about coverage problems from astrostat/phystat groups. ... The authors investigated issues in interval estimation of the mean in the exponential family, such as binomial, Poisson, negative binomial, normal, gamma, and a sixth distribution. ... Comment . ... Entries RSS . Comments RSS . ... General comments . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

... Galaxy formation and evolution is one of the key problems of modern astronomy. Galaxies in the universe come in a large variety of shapes and sizes, which we refer to as the Hubble sequence. The study of galaxy formation and evolution aims at explaining this variety as well as its statistical properties. Though the formation, and to some extent the evolution of galaxies still is one of the most active research areas in astrophysics. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to s