Publication at Faculty of Mathematics and Physics |
2009
Abstract
High energy particles reside in the relativistic jets of microquasars, making them possible sources of very high energy radiation (VHE, }100 GeV). Detecting this emission would provide a new handle on jet physics.The VHE to X-ray luminosity ratio in GRS 1915 105 is at least four orders of magnitude lower than the ratio observed in gamma-ray binaries.
The VHE radiative efficiency of the compact jet is less than 0.01% based on its estimated total power of 1038 erg-s-1. Particle acceleration in GRS 1915 105 is not efficient at high energies and/or the magnetic field is too strong.
It is also possible that VHE gamma-rays are produced by GRS 1915 105, but the emission is highly time-dependent.