Cooling of energetic particles during their transport along spiral field lines

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The transport of low-energy charged particles moving along magnetic field lines is considered. We point out that particles accelerated at CIRs at larger heliocentric distances and moving inward along the spiral field lose energy and decelerate even in a purely scatter free case. This results in a sizeable reduction in intensity. Scattering increases the transit time, and in general increase the amount of cooling and modulation by a considerable factor. Numerical results obtained from a model including convection, adiabatic focusing, cooling, and optional pitch angle scattering are presented.

Original languageEnglish (US)
Pages (from-to)853-856
Number of pages4
JournalAdvances in Space Research
Volume26
Issue number5
StatePublished - Sep 1 2000

Fingerprint

energetic particles
energetics
scattering
Scattering
Cooling
cooling
pitch (inclination)
transit time
Charged particles
energy
charged particles
convection
Modulation
Magnetic fields
magnetic field
modulation
magnetic fields
particle
Convection

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Cooling of energetic particles during their transport along spiral field lines. / Kóta, J.; Jokipii, J. Randy.

In: Advances in Space Research, Vol. 26, No. 5, 01.09.2000, p. 853-856.

Research output: Contribution to journalArticle

@article{201c4b4ad82148a280501ef7af0242a1,
title = "Cooling of energetic particles during their transport along spiral field lines",
abstract = "The transport of low-energy charged particles moving along magnetic field lines is considered. We point out that particles accelerated at CIRs at larger heliocentric distances and moving inward along the spiral field lose energy and decelerate even in a purely scatter free case. This results in a sizeable reduction in intensity. Scattering increases the transit time, and in general increase the amount of cooling and modulation by a considerable factor. Numerical results obtained from a model including convection, adiabatic focusing, cooling, and optional pitch angle scattering are presented.",
author = "J. K{\'o}ta and Jokipii, {J. Randy}",
year = "2000",
month = "9",
day = "1",
language = "English (US)",
volume = "26",
pages = "853--856",
journal = "Advances in Space Research",
issn = "0273-1177",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - Cooling of energetic particles during their transport along spiral field lines

AU - Kóta, J.

AU - Jokipii, J. Randy

PY - 2000/9/1

Y1 - 2000/9/1

N2 - The transport of low-energy charged particles moving along magnetic field lines is considered. We point out that particles accelerated at CIRs at larger heliocentric distances and moving inward along the spiral field lose energy and decelerate even in a purely scatter free case. This results in a sizeable reduction in intensity. Scattering increases the transit time, and in general increase the amount of cooling and modulation by a considerable factor. Numerical results obtained from a model including convection, adiabatic focusing, cooling, and optional pitch angle scattering are presented.

AB - The transport of low-energy charged particles moving along magnetic field lines is considered. We point out that particles accelerated at CIRs at larger heliocentric distances and moving inward along the spiral field lose energy and decelerate even in a purely scatter free case. This results in a sizeable reduction in intensity. Scattering increases the transit time, and in general increase the amount of cooling and modulation by a considerable factor. Numerical results obtained from a model including convection, adiabatic focusing, cooling, and optional pitch angle scattering are presented.

UR - http://www.scopus.com/inward/record.url?scp=0039173069&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0039173069&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0039173069

VL - 26

SP - 853

EP - 856

JO - Advances in Space Research

JF - Advances in Space Research

SN - 0273-1177

IS - 5

ER -