Hostname: page-component-cb9f654ff-mnl9s Total loading time: 0 Render date: 2025-08-28T20:31:22.587Z Has data issue: false hasContentIssue false
  • English
  • Français

Numerical simulations of unbounded cyclotron-maser emissions

Published online by Cambridge University Press:  12 November 2013

DAVID C. SPEIRS ,
S. L. McCONVILLE ,
K. M. GILLESPIE ,
A. D. R. PHELPS  and
K. RONALD
DAVID C. SPEIRS
Affiliation:
Physics Department, SUPA, University of Strathclyde, Glasgow, G4 0NG, UK (david.c.speirs@strath.ac.uk)
S. L. McCONVILLE
Affiliation:
Physics Department, SUPA, University of Strathclyde, Glasgow, G4 0NG, UK (david.c.speirs@strath.ac.uk)
K. M. GILLESPIE
Affiliation:
Physics Department, SUPA, University of Strathclyde, Glasgow, G4 0NG, UK (david.c.speirs@strath.ac.uk)
A. D. R. PHELPS
Affiliation:
Physics Department, SUPA, University of Strathclyde, Glasgow, G4 0NG, UK (david.c.speirs@strath.ac.uk)
K. RONALD
Affiliation:
Physics Department, SUPA, University of Strathclyde, Glasgow, G4 0NG, UK (david.c.speirs@strath.ac.uk)
Get access Rights & Permissions [Opens in a new window]

Abstract

Numerical simulations have been conducted to study the spatial growth rate and emission topology of the cyclotron-maser instability responsible for stellar/planetary auroral magnetospheric radio emission and intense non-thermal radio emission in other astrophysical contexts. These simulations were carried out in an unconstrained geometry, so that the conditions existing within the source region of some natural electron cyclotron masers could be more closely modelled. The results have significant bearing on the radiation propagation and coupling characteristics within the source region of such non-thermal radio emissions.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Allen, J. E. and Phelps, A. D. R. 1977 Waves and microinstabilities in plasmas-linear effects. Rep. Prog. Phys. 40 (11), 1305–1368.CrossRefGoogle Scholar
Bingham, R. and Cairns, R. A. 2000 Generation of auroral kilometric radiation by electron horseshoe distributions. Phys. Plasmas 7 (7), 3089–3092.CrossRefGoogle Scholar
Bingham, R., Kellett, B. J., Cairns, R. A., Vorgul, I., Phelps, A. D. R., Ronald, K. and Speirs, D. 2004 Cyclotron maser radiation in space and laboratory plasmas. Contrib. Plasma Phys. 44 (5–6), 382–387.CrossRefGoogle Scholar
Bingham, R., Speirs, D. C., Kellett, B. J., Vorgul, I., McConville, S. L., Cairns, R. A., Cross, A. W., Phelps, A. D. R. and Ronald, K. 2013 Laboratory astrophysics: investigation of planetary and astrophysical maser emission. Space Sci. Rev. 10.1007/s11214-013-9963-z, 1–19.Google Scholar
Cairns, R. A., Speirs, D. C., Ronald, K., Vorgul, I., Kellett, B. J., Phelps, A. D. R. and Bingham, R. 2005 A cyclotron maser instability with application to space and laboratory plasmas. Phys. Scripta T116, 23–26.CrossRefGoogle Scholar
Cairns, R. A., Vorgul, I. and Bingham, R. 2008 Cyclotron maser radiation from an inhomogeneous plasma. Phys. Rev. Lett. 101, 215003.CrossRefGoogle ScholarPubMed
Cairns, R. A., Vorgul, I., Bingham, R., Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K. M., Bryson, R., Phelps, A. D. R., Kellett, B. J.et al. 2011 Cyclotron maser radiation from inhomogeneous plasmas. Phys. Plasmas 18, 022902.CrossRefGoogle Scholar
Ergun, R. E., Carlson, C. W., McFadden, J. P., Delory, G. T., Strangeway, R. J. and Pritchett, P. L. 2000 Electron-cyclotron maser driven by charged-particle acceleration from magnetic field-aligned electric fields. Astrophys. J. 538(1, 1), 456–466.CrossRefGoogle Scholar
Gillespie, K. M., Speirs, D. C., Ronald, K., McConville, S. L., Phelps, A. D. R., Bingham, R., Cross, A. W., Robertson, C. W., Whyte, C. G., He, W.et al. 2008 3D PiC code simulations for a laboratory experimental investigation of auroral kilometric radiation mechanisms. Plasma Phys. Control. Fusion 50, 124038.CrossRefGoogle Scholar
Gurnett, D. A. 1974 Earth as a radio-source – terrestrial kilometric radiation. J. Geophys. Res. 79 (28), 4227–4238.CrossRefGoogle Scholar
McConville, S. L., Speirs, D. C., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W., Gillespie, K. M.et al. 2008 Demonstration of auroral radio emission mechanisms by laboratory experiment. Plasma Phys. Control. Fusion 50, 074010.CrossRefGoogle Scholar
Ronald, K., McConville, S. L., Speirs, D. C., Phelps, A. D. R., Robertson, C. W., Whyte, C. G., Gillespie, K. M., Cross, A. W. and Bingham, R. 2008a Electron beam measurements for a laboratory simulation of auroral kilometric radiation. Plasma Sources Sci. Technol. 17, 035011.CrossRefGoogle Scholar
Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Bingham, R., Vorgul, I., Cairns, R. A., Cross, A. W., Robertson, C. W.et al. 2011 Auroral magnetospheric cyclotron emission processes: numerical and experimental simulations. Plasma Phys. Control. Fusion 53, 074015.CrossRefGoogle Scholar
Ronald, K., Speirs, D. C., McConville, S. L., Phelps, A. D. R., Robertson, C. W., Whyte, C. G., He, W., Gillespie, K. M., Cross, A. W. and Bingham, R. 2008b Radio frequency resonator structure and diagnostic measurements for a laboratory simulation of auroral kilometric radiation. Phys. Plasmas 15, 056503.CrossRefGoogle Scholar
Speirs, D. C., McConville, S. L., Gillespie, K. M., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., Vorgul, I.et al. 2008 Numerical simulation of auroral cyclotron maser processes. Plasm Phys. Control. Fusion 50, 074011.CrossRefGoogle Scholar
Speirs, D. C., Ronald, K., McConville, S. L., Gillespie, K. M., Phelps, A. D. R., Cross, A. W., Bingham, R., Robertson, C. W., Whyte, C. G., He, W.et al. 2010 Numerical investigation of auroral cyclotron maser processes. Phys. Plasmas 17, 056501.CrossRefGoogle Scholar
Speirs, D. C., Vorgul, I., Ronald, K., Bingham, R., Cairns, R. A., Phelps, A. D. R., Kellett, B. J., Cross, A. W., Whyte, C. G. and Robertson, C. 2005 A laboratory experiment to investigate auroral kilometric radiation emission mechanisms. J. Plasma Phys. 71 (5), 665–674.CrossRefGoogle Scholar
Treumann, R. A. 2006 The electron-cyclotron maser for astrophysical application. Astron. Astrophys. Rev. 13 (4), 229–315.CrossRefGoogle Scholar
Vorgul, I., Kellett, B. J., Cairns, R. A., Bingham, R., Ronald, K., Speirs, D. C., McConville, S. L., Gillespie, K. M. and Phelps, A. D. R. 2011 Cyclotron maser emission: Stars, planets, and laboratory. Phys. Plasmas 18, 056501.CrossRefGoogle Scholar
Zarka, P. 1992 The auroral radio emissions from planetary magnetospheres – what do we know, what don't we know, what do we learn from them? In: Planetary Magnetospheric Physics II (ed. Kivelson, M. G., Runcorn, S. K., Ness, N. F. and Ip, W. H.). Amsterdam, The Netherlands: Elsevier; Adv. Space Res., 12(8), 99–115.Google Scholar