Internal shocks model for microquasar jets

Details Internal shocks model for microquasar jets Internal shocks model for microquasar jets

2008-11-20

arxiv.org/abs/0811.3320v1

Astronomy and Astrophysics

Astrophysics

9 pages, 3 figures, contributed talk at the VII Microquasar Workshop: Microquasars and Beyond, 1-5 September 2008, Foca, Izmir

Scientific paper

We present an internal shocks model to investigate particle acceleration and radiation production in microquasar jets. The jet is modelled with discrete ejecta at various time intervals. These ejecta (or 'shells') may have different properties including the bulk velocity. Faster shells can catch up and collide with the slower ones, thus giving rise to shocks. The particles are accelerated inside the shocked plasma. Each collision results in a new shell, which may take part in any subsequent collisions as well as radiate due to synchrotron radiation. Almost continuous energy dissipation along the jet can be obtained with a large number of shell collisions. We investigate the spectral energy distribution of such jets as well as the physical significance of various parameters (e.g. the time interval between ejections and the shell size).

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