Picture of aircraft jet engine

Strathclyde research that powers aerospace engineering...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers involved in aerospace engineering and from the Advanced Space Concepts Laboratory - but also other internationally significant research from within the Department of Mechanical & Aerospace Engineering. Discover why Strathclyde is powering international aerospace research...

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

Discover more...

A laboratory experiment to investigate auroral kilometric radiation emission mechanisms

Speirs, David and Vorgul, I. and Ronald, K. and Bingham, R. and Cairns, R.A. and Phelps, A.D.R. and Kellett, B.J. and Cross, A.W. and Whyte, C.G. and Robertson, C. (2005) A laboratory experiment to investigate auroral kilometric radiation emission mechanisms. Journal of Plasma Physics, 71 (5). pp. 665-674. ISSN 0022-3778

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

Abstract

If an initially mainly rectilinear electron beam is subject to significant magnetic compression, the conservation of the magnetic moment results in the ultimate formation of a horseshoe distribution in phase space. A similar situation occurs where particles are accelerated into the auroral region of the Earth's magnetic dipole. Such a distribution has been shown to be unstable to a cyclotron resonance maser type of instability and it has been postulated that this may be the mechanism required to explain the production in these regions of auroral kilometric radiation (AKR) and also possibly radiation from other astrophysical objects such as stars with a suitable magnetic field configuration. In this paper we describe a laboratory experiment to investigate the evolution of an electron beam subject to a magnetic compression of up to a factor of 30.