ORIGIN OF JUPITER 'S AND SATURN'S REGULAR SATELLITES IN CIRCUMPLANETARY DISKS A. B. Makalkin(1), V. A. Dorofeeva(2) (1) (2) )Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences The problem The models of formation of the Jupiter 's and Saturn's regular ... The models constructed are two-dimensional: the calculations are made for radial and vertical T-P structure of the disks. ...

... 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. ...

... Spectrosc., 90 , 574-579. [ abstract (in English; ASCII file); paper (in Russian; PS file)] . ... Astronomy Letters, 26 , N 10, 679-690. [ abstract (ASCII file); paper (PDF file)] . ... 2001) . ... 72 , N 5, 607-612. [ abstract (ASCII file); paper (PS file)] . ... Scattering and polarization properties of the non-spherical particles. in: Smith W.L., Timofeyev Y.M. (eds.) IRS 2000: Current Problems in Atmospheric Radiation, A.Deepak Publ. (in press) [ abstract (ASCII file); paper (PS file)] . ...

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

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. ...

Microsymposium 34, MS058, 2001 ANOMALIES OF THE MOON'S THERMAL EMISSION IN THE IR SPECTRAL RANGE (10.5 - 12.5 micron). ... Sternberg State Astronomical Institute, Moscow, 119899, Russia, pugach@sai.msu.ru Summary: New satellite measurements of the lunar-surface radiation temperature were used to construct the spatial angular function of thermal radiation of the Moon in the infrared (10.5-12.5 micron) spectral range. ... These thermal anomalies are observed only in the limited range of phase angles. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

Rhea . ... Rhea is an icy body with a density of 1.33 gm/cm 3 . The low density indicates that it is composed of a rocky core taking up less than one-third of the moon's mass, with the rest composed of water-ice. ... Rhea is heavily cratered with bright whispy markings. ... The second area, in parts of the polar and equatorial regions, has craters under 40 kilometers (25 miles) in diameter. ... Orbital period (days) . ... Credit: Calvin J. Hamilton) . ... Copyright ї 1997 by Calvin J. Hamilton . ...

... Stars Without Galaxies . ... Using the Hubble Space Telescope, researchers exploring the Virgo Cluster of galaxies have now found about 600 red giant stars adrift in intergalactic space. ... NGC 869 NGC 884: A Double Open Cluster . ... Most star clusters are singularly impressive. But open clusters NGC 869 and NGC 884 are doubly impressive. ... Many stars form in clusters. Two types of star clusters are visible in our Milky Way Galaxy: open clusters and globular clusters. ...

Here, a smooth particle hydrodynamics (SPH) simulation, in which matter is represented as particles, is used to model tidal stripping from a Titan-sized satellite consisting of 45 percent ice in an outer mantle and 55 percent silicate and metal in an inner core. The frames show material stripped from the satellite after [left] 8 simulated hours and [right] 25 simulated hours, assuming a fixed satellite orbit indicated by the outer dashed circle. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

Molecular Lines in Star Formation Regions ­ the ALMA Challenge Paul Jones University of New South Wales Universidad de Chile 1 Molecular Lines in Star Formation Regions - Molecular lines trace the kinematics and chemistry (composition) of molecular clouds. ... The lines also trace physical conditions such as temperature and density, complementary to mm/sub-mm dust continuum data e.g. ATLASGAL and ALMA continuum. ... Simple molecules (eg. ... More complex molecules (eg. ...

Mercury Winter 2012 Table of Contents . ... It observes the sky in nine frequency bands covering 30 to 857 GHz, that is at wavelengths ranging from . ... Planck's studies of the CMB will not be released for another year. ... Planck's all-sky surveys at frequencies of 100 to 857 GHz are unique. ... If you enjoyed this excerpt from a feature article and would like to receive our quarterly Mercury magazine, we invite you to join the ASP and receive 4 issues a year. ...