Dip-like magnetic structure seen in solar prominences

Document Type

Syllabus

Publication Date

1-1-2002

Abstract

Solar prominences are relatively dense objects suspended in the hot and tenuous solar corona. It has long been speculated that prominence material is supported against gravity by the Lorentz force exerted by magnetic field whose line of force is locally concave upward forming a so-called 'dip'. However, there has been no clear supporting observation mainly due to difficulty in determining 3D magnetic fields within prominences. We present a high-resolution Hα observation of a prominence in which time series of the filtergrams along with Dopplergrams reveals an oscillatory motion of the cool material along a concave upward magnetic dip structure across the main body of the prominence. The observed magnetic dip is an important clue to our understanding of the physics of solar prominences. © 2002 Elsevier B.V. All rights reserved.

Identifier

77957060950 (Scopus)

Publication Title

Cospar Colloquia Series

External Full Text Location

https://doi.org/10.1016/S0964-2749(02)80139-1

ISSN

09642749

First Page

103

Last Page

107

Issue

C

Volume

14

Grant

M1010400005901J000002500

Fund Ref

U.S. Naval Research Laboratory

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