DISTORTION OF STELLAR MAGNETIC LOOPS BY SIPHON FLOWS

Authors
JARDINE M FERREIRA JMTS
Citation
M. Jardine et Jmts. Ferreira, DISTORTION OF STELLAR MAGNETIC LOOPS BY SIPHON FLOWS, Astrophysical letters & communications, 34(1-6), 1996, pp. 101-106
Citations number
15
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysical letters & communications → ACNP
ISSN journal
08886512
Volume
34
Issue
1-6
Year of publication
1996
Pages
101 - 106
Database
ISI
SICI code
0888-6512(1996)34:1-6<101:DOSMLB>2.0.ZU;2-7
Abstract
We present models showing how flows can distort the shapes of stellar magnetic loops. Flows much slower than the Alfven speed distort the lo op by altering the pressure; faster flows involve the Coriolis force a nd the centrifugal force associated with flow along the curved path of the loop. A typical flow speed is that required to form a stellar pro minence. We estimate the surface field strength needed to ensure that a loop's shape is not disturbed by a such a flow.