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Title: INTERSTELLAR MAGNETIC FIELD SURROUNDING THE HELIOPAUSE

Abstract

This paper presents a three-dimensional analytical solution, in the limit of very low plasma beta-ratio, for the distortion of the interstellar magnetic field surrounding the heliopause. The solution is obtained using a line dipole method that is the integration of point dipole along a semi-infinite line; it represents the magnetic field caused by the presence of the heliopause. The solution allows the variation of the undisturbed magnetic field at any inclination angle. The heliosphere is considered as having blunt-nosed geometry on the upwind side and it asymptotically approaches a cylindrical geometry having an open exit for the continuous outflow of the solar wind on the downwind side. The heliopause is treated as a magnetohydrodynamic tangential discontinuity; the interstellar magnetic field lines at the boundary are tangential to the heliopause. The interstellar magnetic field is substantially distorted due to the presence of the heliopause. The solution shows the draping of the field lines around the heliopause. The magnetic field strength varies substantially near the surface of the heliopause. The effect on the magnetic field due to the presence of the heliopause penetrates very deep into the interstellar space; the depth of penetration is of the same order of magnitude as themore » scale length of the heliosphere.« less

Authors:
 [1]
  1. Catholic University of America, Washington, DC 20064 (United States)
Publication Date:
OSTI Identifier:
21394465
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 710; Journal Issue: 2; Other Information: DOI: 10.1088/0004-637X/710/2/936
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANALYTICAL SOLUTION; DIPOLES; GEOMETRY; HELIOSPHERE; INCLINATION; INTERSTELLAR MAGNETIC FIELDS; INTERSTELLAR SPACE; SOLAR WIND; ATMOSPHERES; MAGNETIC FIELDS; MATHEMATICAL SOLUTIONS; MATHEMATICS; MULTIPOLES; SOLAR ACTIVITY; SOLAR ATMOSPHERE; SPACE; STELLAR ACTIVITY; STELLAR ATMOSPHERES; STELLAR WINDS

Citation Formats

Whang, Y. C., E-mail: whang@cua.ed. INTERSTELLAR MAGNETIC FIELD SURROUNDING THE HELIOPAUSE. United States: N. p., 2010. Web. doi:10.1088/0004-637X/710/2/936.
Whang, Y. C., E-mail: whang@cua.ed. INTERSTELLAR MAGNETIC FIELD SURROUNDING THE HELIOPAUSE. United States. doi:10.1088/0004-637X/710/2/936.
Whang, Y. C., E-mail: whang@cua.ed. Sat . "INTERSTELLAR MAGNETIC FIELD SURROUNDING THE HELIOPAUSE". United States. doi:10.1088/0004-637X/710/2/936.
@article{osti_21394465,
title = {INTERSTELLAR MAGNETIC FIELD SURROUNDING THE HELIOPAUSE},
author = {Whang, Y. C., E-mail: whang@cua.ed},
abstractNote = {This paper presents a three-dimensional analytical solution, in the limit of very low plasma beta-ratio, for the distortion of the interstellar magnetic field surrounding the heliopause. The solution is obtained using a line dipole method that is the integration of point dipole along a semi-infinite line; it represents the magnetic field caused by the presence of the heliopause. The solution allows the variation of the undisturbed magnetic field at any inclination angle. The heliosphere is considered as having blunt-nosed geometry on the upwind side and it asymptotically approaches a cylindrical geometry having an open exit for the continuous outflow of the solar wind on the downwind side. The heliopause is treated as a magnetohydrodynamic tangential discontinuity; the interstellar magnetic field lines at the boundary are tangential to the heliopause. The interstellar magnetic field is substantially distorted due to the presence of the heliopause. The solution shows the draping of the field lines around the heliopause. The magnetic field strength varies substantially near the surface of the heliopause. The effect on the magnetic field due to the presence of the heliopause penetrates very deep into the interstellar space; the depth of penetration is of the same order of magnitude as the scale length of the heliosphere.},
doi = {10.1088/0004-637X/710/2/936},
journal = {Astrophysical Journal},
number = 2,
volume = 710,
place = {United States},
year = {Sat Feb 20 00:00:00 EST 2010},
month = {Sat Feb 20 00:00:00 EST 2010}
}