Picture of a black hole

Strathclyde Open Access research that creates ripples...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of research papers by University of Strathclyde researchers, including by Strathclyde physicists involved in observing gravitational waves and black hole mergers as part of the Laser Interferometer Gravitational-Wave Observatory (LIGO) - but also other internationally significant research from the Department of Physics. Discover why Strathclyde's physics research is making ripples...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Laboratory simulation at microwave frequencies of auroral kilometric radiation emission mechanisms

Speirs, David and Ronald, K. and Phelps, A.D.R. and Cross, A.W. and Bingham, R. and Vorgul, I. and Cairns, R.A. and Whyte, C.G. and Robertson, C.W. and , IEEE (2005) Laboratory simulation at microwave frequencies of auroral kilometric radiation emission mechanisms. In: The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics. IEEE, New Jersey, USA, pp. 97-98. ISBN 0780393481

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

When a beam of electrons encounters an increasing magnetic field along its vector of motion, conservation of the magnetic moment results in the formation of a crescent or horseshoe shaped velocity distribution. A scenario analogous to this occurs in the terrestrial auroral zone where particles are accelerated into the polar regions of the Earth's magnetic dipole and expand adiabatically in velocity space. The resultant horseshoe shaped velocity distribution has been shown to be unstable with respect to a cyclotron-maser type instability (Bingham and Cairns, 2000, Vorgul et al., 2004 and Speirs et al., 2004). This instability has been postulated as the mechanism responsible for auroral kilometric radiation and also non-thermal radiation from other astrophysical bodies (Bingham et al., 2001). In this paper we describe a laboratory experiment to investigate the propagation of an electron beam subject to a magnetic compression of up to a factor of 35.