X-ray emission from comets, cometary knots, and supernova remnants

R. Bingham, B. J. Kellett, J. M. Dawson, V. D. Shapiro, D. A. Mendis

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A comparison is made between one of the processes leading to cometary X-ray emission and X-rays from supernova remnants. We demonstrate that the X-ray emission in both comet and supernova is bremsstrahlung and line radiation created by energetic electrons accelerated by plasma turbulence. We further demonstrate that the most likely source of plasma turbulence is produced by counterstreaming ion populations which result from the mass loading effect or from an anisotropic distribution produced by reflecting ions from a collisionless shock. The instability that gives rise to the plasma turbulence is the modified two-stream instability of counterstreaming ions. A similar instability arises in laser-plasma interactions that have self-generating magnetic fields and flowing ions.
LanguageEnglish
Pages233-237
Number of pages5
JournalAstrophysical Journal Supplement
Volume127
Issue number2
DOIs
Publication statusPublished - Apr 2000

Fingerprint

supernova remnants
comets
comet
plasma turbulence
plasma
ion
turbulence
ions
x rays
laser plasma interactions
bremsstrahlung
supernovae
energetics
laser
shock
magnetic field
electron
radiation
magnetic fields
electrons

Keywords

  • emission
  • cometary knots
  • comets
  • supernova
  • radiation mechanisms
  • supernova remnants
  • turbulence
  • X-rays

Cite this

Bingham, R., Kellett, B. J., Dawson, J. M., Shapiro, V. D., & Mendis, D. A. (2000). X-ray emission from comets, cometary knots, and supernova remnants. Astrophysical Journal Supplement , 127(2), 233-237. https://doi.org/10.1086/313361
Bingham, R. ; Kellett, B. J. ; Dawson, J. M. ; Shapiro, V. D. ; Mendis, D. A. / X-ray emission from comets, cometary knots, and supernova remnants. In: Astrophysical Journal Supplement . 2000 ; Vol. 127, No. 2. pp. 233-237.
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Bingham, R, Kellett, BJ, Dawson, JM, Shapiro, VD & Mendis, DA 2000, 'X-ray emission from comets, cometary knots, and supernova remnants' Astrophysical Journal Supplement , vol. 127, no. 2, pp. 233-237. https://doi.org/10.1086/313361

X-ray emission from comets, cometary knots, and supernova remnants. / Bingham, R.; Kellett, B. J.; Dawson, J. M.; Shapiro, V. D.; Mendis, D. A.

In: Astrophysical Journal Supplement , Vol. 127, No. 2, 04.2000, p. 233-237.

Research output: Contribution to journalArticle

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AU - Bingham, R.

AU - Kellett, B. J.

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KW - cometary knots

KW - comets

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