[Image] 


Planets Remind Astronomers of Home

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[Image] 
Digging Deeply into Galaxies' Pasts
Hubble space telescope light from same small area in sky for 10days
straight.  Revealing 1000's of object far distant galaxies fainter bby factor 
of two than any astronomical objects ever seen before.
   Abundance of faint galaxies faintest objects underestimate
the total number of galaxies underestimated by up to factor of 5-10 times.

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[Image] 
The magnetic Nature of Coronal Holes
    Solar wind streams originate from low-density,magnetically open regions
of the sun's corona, known as coronal holes.  The locations, areal sizes, rotation,
and solar-cycle evolution of these regions can be reproduced and understood by applying simple extrapolation

    
ing simple extrapolation models to measurements of the photospheric
magnetic field.  The surprisingly rigid rotation displayed by many coronal
holes suggests that field-line reconnection occurs continually in the corona, despite the high electrical conductivity
of the coronal plasma.  The magnetic field strengths and field-line divergence rates in coronal holes can
be related empirically to the bulk speed and the mass and energy flux densities
of the solar wind plasma.  Such relations may help to illuminate the physical processes
responsible for heating the corona and driving the solar wind.


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[Image] 
The structure and stability of Atomic liquids : From clusters to Bulk
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[Image] 

Insights into the structure of simple liquids are presented from analysis
of the effect of the range of interatomic forces on the multidimensional
potential energy surfaces of bulk material and clusters.  An understanding
at the microscopic level is provided of how the liquid phase is destabilized 
in systems with very short-range interparticle forces.  For small
clusters bound by long-range interatomic forces, the lowest energy 
minimum has an amorphous structure typical of the liquid like state.  This 
suggests an explanation for the transition from electronic to geometric magic numbers (structures of 
special stabbility observed in the mass spectra of sodium clusters.

Design of a Random Quantum Spin Chain PAramagnet : Sr3CuPt.5Ir.5O6


    A new class of magnetic behavior, random quantum
spin chain paramagnetism, has been observed in the 1-dimensional compound 
Sr3CuPt1-xIrxO6, A random quantum spin chain system has S=1/2 spins coupled by Heisenberg exchange
interactions that are randomly ferromagnetic or antiferromagnetic between neighbors along the chain.  This condition was 
fulfilled by membbers of the solid solution 
sr3CuPt1-xIrxO6 whose end-members, Sr3CuPtO6 and Sr3CuIrO6 are antiferromagnetic and
ferromagnetic, respectively.  Magnetic susceptibility
data for the solid solution Sr3CuPt1-xIrxO6 were collected and were found to be in excellent agreement with a theoretical model.

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