On "box" models of shock acceleration and electron synchrotron spectra

Details On "box" models of shock acceleration and electron synchrotron spectra On "box" models of shock acceleration and electron synchrotron spectra

1999-05-14

arxiv.org/abs/astro-ph/9905178v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, accepted for publication in Astronomy and Astrophysics

Scientific paper

The recent detection of high energy gamma-rays coming from supernova remnants and active galactic nuclei has revived interest in the diffusive shock acceleration of electrons. In the present paper we examine the basis of the so-called ``box'' model for particle acceleration and present a more physical version of it. Using this we determine simple criteria for the conditions under which ``pile-ups'' can occur in shock accelerated electron spectra subject to synchrotron or inverse Compton losses (the latter in the Thompson limit). An extension to include nonlinear effects is proposed.

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