γ-ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields

N. G. Lehtinen, M. Walt, U. S. Inan, T. F. Bell, V. P. Pasko

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

In an experiment described by Fishman et al. [1994], high energy photons of atmospheric origin were detected by the Burst and Transient Source Experiment (BATSE) detectors, located on the Compton Gamma Ray Observatory (CGRO). In this paper we assess the possibility that the bursts may be bremsstrahlung produced by relativistic (>1 MeV) runaway electron beams accelerated in an avalanche process by quasi-electrostatic thundercloud fields. We consider the height-dependent density profile of the relativistic electrons specified as a function of time in the context of a previously reported runaway model [Bell et al., 1995). The electron beam is modeled as a vertical cylinder with radius 10 km, and numerical estimates are provided of γ-ray fluxes which would be observed at the satellite. The predicted fluxes at the satellite altitude and at horizontal distances of up to 500 km from the source are found to be comparable to the experimental data.

Original languageEnglish (US)
Article number96GL02573
Pages (from-to)2645-2648
Number of pages4
JournalGeophysical Research Letters
Volume23
Issue number19
DOIs
StatePublished - Jan 1 1996

Fingerprint

thundercloud
bursts
rays
electron beams
Gamma Ray Observatory
electron
electric fields
bremsstrahlung
avalanches
avalanche
radii
detectors
photons
estimates
observatory
profiles
experiment
electrons
energy

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

@article{80a6e1e7e9c6484a85a6a1f9ff725c74,
title = "γ-ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields",
abstract = "In an experiment described by Fishman et al. [1994], high energy photons of atmospheric origin were detected by the Burst and Transient Source Experiment (BATSE) detectors, located on the Compton Gamma Ray Observatory (CGRO). In this paper we assess the possibility that the bursts may be bremsstrahlung produced by relativistic (>1 MeV) runaway electron beams accelerated in an avalanche process by quasi-electrostatic thundercloud fields. We consider the height-dependent density profile of the relativistic electrons specified as a function of time in the context of a previously reported runaway model [Bell et al., 1995). The electron beam is modeled as a vertical cylinder with radius 10 km, and numerical estimates are provided of γ-ray fluxes which would be observed at the satellite. The predicted fluxes at the satellite altitude and at horizontal distances of up to 500 km from the source are found to be comparable to the experimental data.",
author = "Lehtinen, {N. G.} and M. Walt and Inan, {U. S.} and Bell, {T. F.} and Pasko, {V. P.}",
year = "1996",
month = "1",
day = "1",
doi = "10.1029/96GL02573",
language = "English (US)",
volume = "23",
pages = "2645--2648",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "19",

}

γ-ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields. / Lehtinen, N. G.; Walt, M.; Inan, U. S.; Bell, T. F.; Pasko, V. P.

In: Geophysical Research Letters, Vol. 23, No. 19, 96GL02573, 01.01.1996, p. 2645-2648.

Research output: Contribution to journalArticle

TY - JOUR

T1 - γ-ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields

AU - Lehtinen, N. G.

AU - Walt, M.

AU - Inan, U. S.

AU - Bell, T. F.

AU - Pasko, V. P.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - In an experiment described by Fishman et al. [1994], high energy photons of atmospheric origin were detected by the Burst and Transient Source Experiment (BATSE) detectors, located on the Compton Gamma Ray Observatory (CGRO). In this paper we assess the possibility that the bursts may be bremsstrahlung produced by relativistic (>1 MeV) runaway electron beams accelerated in an avalanche process by quasi-electrostatic thundercloud fields. We consider the height-dependent density profile of the relativistic electrons specified as a function of time in the context of a previously reported runaway model [Bell et al., 1995). The electron beam is modeled as a vertical cylinder with radius 10 km, and numerical estimates are provided of γ-ray fluxes which would be observed at the satellite. The predicted fluxes at the satellite altitude and at horizontal distances of up to 500 km from the source are found to be comparable to the experimental data.

AB - In an experiment described by Fishman et al. [1994], high energy photons of atmospheric origin were detected by the Burst and Transient Source Experiment (BATSE) detectors, located on the Compton Gamma Ray Observatory (CGRO). In this paper we assess the possibility that the bursts may be bremsstrahlung produced by relativistic (>1 MeV) runaway electron beams accelerated in an avalanche process by quasi-electrostatic thundercloud fields. We consider the height-dependent density profile of the relativistic electrons specified as a function of time in the context of a previously reported runaway model [Bell et al., 1995). The electron beam is modeled as a vertical cylinder with radius 10 km, and numerical estimates are provided of γ-ray fluxes which would be observed at the satellite. The predicted fluxes at the satellite altitude and at horizontal distances of up to 500 km from the source are found to be comparable to the experimental data.

UR - http://www.scopus.com/inward/record.url?scp=0030301604&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030301604&partnerID=8YFLogxK

U2 - 10.1029/96GL02573

DO - 10.1029/96GL02573

M3 - Article

AN - SCOPUS:0030301604

VL - 23

SP - 2645

EP - 2648

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 19

M1 - 96GL02573

ER -