Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· arXiv e-print (arXiv:astro-ph/9408056)
· References in the article
· Citations to the Article (147) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Effect of adiabatic deceleration on the focused transport of solar cosmic rays
Authors:
Ruffolo, D.
Affiliation:
AA(Chulalongkorn Univ., Bangkok, Thailand)
Publication:
Astrophysical Journal (ISSN 0004-637X), vol. 442, no. 2, Part 1, p. 861-874 (ApJ Homepage)
Publication Date:
04/1995
Category:
Solar Physics
Origin:
STI
NASA/STI Keywords:
Deceleration, Interplanetary Magnetic Fields, Particle Acceleration, Radiation Transport, Solar Cosmic Rays, Solar Protons, Solar Wind, Transport Theory, Adiabatic Flow, Astronomical Models, Convection, Particle Flux Density, Particle Trajectories, Solar Flares
DOI:
10.1086/175489
Bibliographic Code:
1995ApJ...442..861R

Abstract

In the frameworkof focused transport theory, adiabatic deceleration arises from adiabatic focusing in the solar wind frame and from differential solar wind convection. An explicit formula is given for the deceleration of individual particles as a function of the pitch angle. Deceleration and other first-order effects of the solar wind, including convection, are incorporated into a numerical code for simulating the transport of energetic particles along the interplanetary magnetic field. We use this code to model the transport of solar flare protons. We find that including deceleration can increase the decay rate of the near-Earth intensity by 75% more than would be expected based on advection from higher momenta, due to an interplay with diffusive processes. Improved response functions are derived for the imulsive injection of particles near the Sun, and it is found that neglecting deceleration leads to incorrect estimates of the scattering mean free path based on the is found that neglecting decelerations leads to incorrect estimates of the scattering mean path based on the intensity decay alone, especially for lower energy particles.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints