Cyclotron maser emission: stars, planets, and laboratory

I. Vorgul, B. J. Kellett, R. A. Cairns, R. Bingham, K. Ronald, D. C. Speirs, S. L. McConville, K. M. Gillespie, A. D. R. Phelps

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper is a review of results by the group over the past decade on auroral kilometric radiation and similar cyclotron emissions from stars and planets. These emissions are often attributed to a horseshoe or crescent shaped momentum distribution of energetic electrons moving into the convergent magnetic field which exists around polar regions of dipole-type stars and planets. We have established a laboratory-based facility that has verified many of the details of our original theoretical description and agrees well with numerical simulations. The experiment has demonstrated that the horseshoe distribution does indeed produce cyclotron emission at a frequency just below the local cyclotron frequency, with polarization close to X-mode and propagating nearly perpendicularly to the beam motion. We discuss recent developments in the theory and simulation of the instability including addressing a radiation escape problem and the effect of competing instabilities, relating these to the laboratory, space, and astrophysical observations.

LanguageEnglish
Article number056501
Pages-
Number of pages7
JournalPhysics of Plasmas
Volume18
Issue number5
Early online date12 Apr 2011
DOIs
Publication statusPublished - May 2011

Fingerprint

masers
cyclotrons
planets
stars
cyclotron frequency
radiation
polar regions
escape
astrophysics
simulation
dipoles
momentum
polarization
magnetic fields
electrons

Keywords

  • auroral kilometric radiation
  • main sequence star
  • generation
  • instability
  • distrobutions
  • cavity
  • dipole

Cite this

Vorgul, I. ; Kellett, B. J. ; Cairns, R. A. ; Bingham, R. ; Ronald, K. ; Speirs, D. C. ; McConville, S. L. ; Gillespie, K. M. ; Phelps, A. D. R. / Cyclotron maser emission : stars, planets, and laboratory. In: Physics of Plasmas. 2011 ; Vol. 18, No. 5. pp. -.
@article{4e49e331447249e38a32303344d39ccf,
title = "Cyclotron maser emission: stars, planets, and laboratory",
abstract = "This paper is a review of results by the group over the past decade on auroral kilometric radiation and similar cyclotron emissions from stars and planets. These emissions are often attributed to a horseshoe or crescent shaped momentum distribution of energetic electrons moving into the convergent magnetic field which exists around polar regions of dipole-type stars and planets. We have established a laboratory-based facility that has verified many of the details of our original theoretical description and agrees well with numerical simulations. The experiment has demonstrated that the horseshoe distribution does indeed produce cyclotron emission at a frequency just below the local cyclotron frequency, with polarization close to X-mode and propagating nearly perpendicularly to the beam motion. We discuss recent developments in the theory and simulation of the instability including addressing a radiation escape problem and the effect of competing instabilities, relating these to the laboratory, space, and astrophysical observations.",
keywords = "auroral kilometric radiation, main sequence star, generation, instability, distrobutions, cavity, dipole",
author = "I. Vorgul and Kellett, {B. J.} and Cairns, {R. A.} and R. Bingham and K. Ronald and Speirs, {D. C.} and McConville, {S. L.} and Gillespie, {K. M.} and Phelps, {A. D. R.}",
year = "2011",
month = "5",
doi = "10.1063/1.3567420",
language = "English",
volume = "18",
pages = "--",
journal = "Physics of Plasmas",
issn = "1070-664X",
number = "5",

}

Vorgul, I, Kellett, BJ, Cairns, RA, Bingham, R, Ronald, K, Speirs, DC, McConville, SL, Gillespie, KM & Phelps, ADR 2011, 'Cyclotron maser emission: stars, planets, and laboratory' Physics of Plasmas, vol. 18, no. 5, 056501, pp. -. https://doi.org/10.1063/1.3567420

Cyclotron maser emission : stars, planets, and laboratory. / Vorgul, I.; Kellett, B. J.; Cairns, R. A.; Bingham, R.; Ronald, K.; Speirs, D. C.; McConville, S. L.; Gillespie, K. M.; Phelps, A. D. R.

In: Physics of Plasmas, Vol. 18, No. 5, 056501, 05.2011, p. -.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cyclotron maser emission

T2 - Physics of Plasmas

AU - Vorgul, I.

AU - Kellett, B. J.

AU - Cairns, R. A.

AU - Bingham, R.

AU - Ronald, K.

AU - Speirs, D. C.

AU - McConville, S. L.

AU - Gillespie, K. M.

AU - Phelps, A. D. R.

PY - 2011/5

Y1 - 2011/5

N2 - This paper is a review of results by the group over the past decade on auroral kilometric radiation and similar cyclotron emissions from stars and planets. These emissions are often attributed to a horseshoe or crescent shaped momentum distribution of energetic electrons moving into the convergent magnetic field which exists around polar regions of dipole-type stars and planets. We have established a laboratory-based facility that has verified many of the details of our original theoretical description and agrees well with numerical simulations. The experiment has demonstrated that the horseshoe distribution does indeed produce cyclotron emission at a frequency just below the local cyclotron frequency, with polarization close to X-mode and propagating nearly perpendicularly to the beam motion. We discuss recent developments in the theory and simulation of the instability including addressing a radiation escape problem and the effect of competing instabilities, relating these to the laboratory, space, and astrophysical observations.

AB - This paper is a review of results by the group over the past decade on auroral kilometric radiation and similar cyclotron emissions from stars and planets. These emissions are often attributed to a horseshoe or crescent shaped momentum distribution of energetic electrons moving into the convergent magnetic field which exists around polar regions of dipole-type stars and planets. We have established a laboratory-based facility that has verified many of the details of our original theoretical description and agrees well with numerical simulations. The experiment has demonstrated that the horseshoe distribution does indeed produce cyclotron emission at a frequency just below the local cyclotron frequency, with polarization close to X-mode and propagating nearly perpendicularly to the beam motion. We discuss recent developments in the theory and simulation of the instability including addressing a radiation escape problem and the effect of competing instabilities, relating these to the laboratory, space, and astrophysical observations.

KW - auroral kilometric radiation

KW - main sequence star

KW - generation

KW - instability

KW - distrobutions

KW - cavity

KW - dipole

UR - http://www.scopus.com/inward/record.url?scp=79958843102&partnerID=8YFLogxK

U2 - 10.1063/1.3567420

DO - 10.1063/1.3567420

M3 - Article

VL - 18

SP - -

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 5

M1 - 056501

ER -