Publication detail

Discovery of aNew Class of Coronal Structures in White Light Eclipse Images

DRUCKMÜLLER, M. HABBAL, S. MORGAN, H.

Original Title

Discovery of aNew Class of Coronal Structures in White Light Eclipse Images

Type

journal article in Web of Science

Language

English

Original Abstract

White light images of the solar corona, taken during total solar eclipses, capture the complex dynamic relationship between the coronal plasma and the magnetic field. This relationship can be recorded on timescales of seconds to minutes, within a few solar radii above the solar surface. Rays, large-scale loops, and streamers, which are the brightest structures in these images, have shaped current models of the coronal magnetic field and solar wind flow. We show in this work how the application of novel image processing techniques to unique high-resolution white light eclipse images reveals the presence of a new class of structures, reminiscent of smoke rings, faint nested expanding loops, expanding bubbles, and twisted helical structures. These features are interpreted as snapshots of the dynamical evolution of instabilities developing at prominence-corona interfaces and propagating outward with the solar wind.

Keywords

eclipses, instabilities, solar wind, Sun, corona, filaments, prominences

Authors

DRUCKMÜLLER, M.; HABBAL, S.; MORGAN, H.

RIV year

2014

Released

21. 2. 2014

ISBN

0004-637X

Periodical

ASTROPHYSICAL JOURNAL

Year of study

2014 (785)

Number

1

State

United States of America

Pages from

14

Pages to

22

Pages count

9

BibTex

@article{BUT106823,
  author="Miloslav {Druckmüller} and Shadia Rifai {Habbal} and Huw {Morgan}",
  title="Discovery of aNew Class of Coronal Structures in White Light Eclipse Images",
  journal="ASTROPHYSICAL JOURNAL",
  year="2014",
  volume="2014 (785)",
  number="1",
  pages="14--22",
  doi="10.1088/0004-637X/785/1/14",
  issn="0004-637X"
}