There are so many excellent review papers describing the principles of C o m p t o n spectrometry that they may be considered almost as a bible for anyone wishing to work in this field. Here I want to quote the book edited by Williams [1], papers by Coope r [2 -4 ] and more recent papers of Mann inen [5] and Sharma [6]. The use of circularly polarized synchrot ron radiat ion to so-called magnet...

The polarizability of a system defines its response to a quasistatic electromagnetic field. The induced dipole moment of two constituents of opposite charge, q and −q respectively, at a distance ~r is ~ d = q~r = α~ E, with α the electric polarizability and ~ E the electric field. If the force between the constituents is governed by Hooke’s law, the equilibrium is obtained for α = 2q/C where C ...

We investigate the effects of inverse Compton scattering by electrons and positrons in the unshocked winds of rotationally-powered binary pulsars. This process can scatter low energy target photons to produce gamma rays with energies from MeV to TeV. The binary radio pulsars PSR B1259−63 and PSR J0045−73 are both in close eccentric orbits around bright main sequence stars which provide a huge d...

We present equations and details of the computer code for model atmosphere computations, in which we include both nonzero external illumination by very hard X-rays, and Compton scattering opacity and emissivity. We assume both radiative and hydrostatic equilibrium, and LTE equation of state. The code solves simultaneously transfer of thermal radiation emitted by a hot main sequence stellar atmo...

We analyze the correlation eeects in two electron atoms and ions which can be probed in double ionization with high energy photons. We consider total cross sections and diierential cross sections for double ionization by pho-toabsorption and Compton scattering and discuss the shake and non{shake mechanisms which may contribute to these observables. The total cross section for photoabsorption (a...

In recent years, real and virtual Compton scattering off the nucleon have attracted considerable interest from both the experimental and theoretical sides. Real Compton scattering gives access to the so-called electromagnetic polarizabilities containing the structure information beyond the global properties of the nucleon such as its charge, mass, and magnetic moment. These polarizabilities hav...