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astro-ph2000
Steps to the Planck Function : A Centenary Reflection
T Richard Carson
The year 2000 marks the centenary of the Planck function for the blackbody spectral distribution. Here are traced the steps, over 100 years, along the path leading to this importan…
astro-ph1999
The coplanar n-body gravitational lens : a general theorem
T. Richard Carson
Generalizing a result for the binary lens, similar alternative expressions are also given for the Jacobian determinant for a gravitational lens consisting of an arbitrary number of…