NEUTRAL HYDROGEN DISTRIBUTIONS AND PROBABLE MAGNETIC-FIELD DISTRIBUTIONS IN NEARBY SPIRAL GALAXIES

Authors
VALLEE JP
Citation
Jp. Vallee, NEUTRAL HYDROGEN DISTRIBUTIONS AND PROBABLE MAGNETIC-FIELD DISTRIBUTIONS IN NEARBY SPIRAL GALAXIES, Astrophysics and space science, 206(2), 1993, pp. 275-284
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
206
Issue
2
Year of publication
1993
Pages
275 - 284
Database
ISI
SICI code
0004-640X(1993)206:2<275:NHDAPM>2.0.ZU;2-S
Abstract
Six spiral galaxies (NGC 253, NGC 2903, M 106, M 63, M 51, and M 83) a re studied in their H I and magnetic field distributions. There is a p ossible link between the two distributions, such that a spiral-galaxy with a regularly shaped (VA = 1) or moderately arched (VA = 2) disk of neutral hydrogen seems to have a regular axisymmetric azimuthal magne tic field (m(azim) = 0). Conversely, a spiral galaxy with a strongly a rched (VA = 3) or extremely arched (VA = 4) disk of neutral hydrogen s eems to have a beautifully-shaped bisymmetric azimuthal magnetic field (m(azim) = 1).