The Physics of the Solar Corona and Transition Region

by Engvold, Oddbjorn; Harvey, John W.; Schrijver, Carolus J.; Hurlburt, Neale E.

• ISBN13: 9780792363576
• ISBN10: 0792363574
• Edition: CD
• Format: Hardcover
• Copyright: 2000-10-01
• Publisher: Kluwer Academic Pub

Summary

The Sun's magnetic field is responsible for the spectacularly dynamic and intricate phenomenon that we call the corona. The past decade has seen an enormous increase in our understanding of this part of the solar outer atmosphere, both as a result of observations and because of rapid advances in numerical studies. The YOHKOH satellite has observed the Sun now for over six years, producing spectacular sequences of images that convey the complexity of the corona. The imaging and spectroscopic instruments on SOHO have added information on the cooler part of the corona. And since April of 1998 TRACE has given us very high resolution images of the 1-2 MK corona, at cadences that allow detailed observations of field oscillations, loop evolution, mass ejecta, etc. This volume contains papers contributed to a workshop (held in August 1999, in Monterey, California) that was dedicated to an exploration of the most recent results on the solar corona, as well as on the transition region and low solar wind. The diverse presentations at the meeting revolved around one key theme: the entire outer atmosphere of the Sun is intrinsically dynamic, evolving so rapidly that even the concept of a single local temperature for a single fluid often breaks down. Moreover, the corona is an intrinsically nonlinear and nonlocal medium. These aspects are discussed in these proceedings that include both papers that review recent developments (both based on observations and on theoretical/numerical modeling), and original research papers based on observations from many different observatories. The papers presented at the meeting add up to such a size that they are distributed over two Topical Issues of Solar Physics (December 1999 and April 2000), which are reprinted in these bound volumes.

Table of Contents

Preface	vii
Aspects of Three-Dimensional Magnetic Reconnection	1	(24)
E. R. Priest
C. J. Schrijver
The Topological Behaviour of Stable Magnetic Separators	25	(10)
D. S. Brown
E. R. Priest
Does Magnetic Flux Submerge at Flux Cancelation Sites?	35	(10)
Karen L. Harvey
Harrison P. Jones
Carolus J. Schrijver
Matthew J. Penn
Magnetic Reconnection as the Cause of a Photospheric Canceling Feature and Mass Flows in a Filament	45	(14)
Yuri E. Litvinenko
Sara F. Martin
Forward Modeling of the Coronal Response to Reconnection in an X-Ray Bright Point	59	(20)
Charles Kankelborg
Dana Longcope
Different Spatial Structures between Network Regions and Active Regions Indicated by Trace 171 A Observation	79	(12)
M. Zhang
H. Q. Zhang
G. X. Al
H. N. Wang
The Global Dynamics of the High-Temperature Corona	91	(16)
Hugh Hudson
CME Associated with Transequatorial Loops and a Bald Patch Flare	107	(24)
C. Delannee
G. Aulanier
Long-Lived Coronal Loop Profiles from Trace	131	(8)
Dawn D. Lenz
Edward E. Deluca
Leon Golub
Robert Rosner
Jay A. Bookbinder
Christof Litwin
Fabio Reale
Giovanni Peres
Inclination of Large Coronal Loops Observed by Trace	139	(6)
Fabio Reale
Structure and Dynamics of Interconnecting Loops and Coronal Holes in Active Longitudes	145	(8)
Elena E. Benevolenskaya
A. G. Kosovichev
P. H. Scherrer
Counter-Streaming Mass Flow and Transient Brightening in Active Rgion Loops	153	(14)
Jiong Qiu
Haimin Wang
Jongchul Chae
Philip R. Goode
High-Resolution Observations of Plasma Jets in the Solar Corona	167	(18)
David Alexander
Lyndsay Fletcher
Dynamics of Polar Plumes Observed at the 1998 February 26 Eclipse	185	(22)
B. W. Lites
G. Card
D. F. Elmore
T. Holzer
A. Lecinski
K. V. Streander
S. Tomczyk
J. B. Gurman
Coronal Heating Events in High-Cadence Trace Data	207	(26)
Jack Ireland
Meredith Wills-Davey
Robert W. Walsh
Do EUV Nanoflares Account for Coronal Heating?	233	(16)
Markus J. Aschwanden
Time Variability of EUV Brightenings in Coronal Loops Observed with Trace	249	(18)
Richard W. Nightingale
Markus J. Aschwanden
Neale E. Hurlburt
Flares in Sigmoidal Coronal Structures - A Case Study	267	(28)
H. Aurass
B. Vrsnak
A. Hofmann
V. Rudzjak
Post-Impulsive-Phase Acceleration in a Wide Range of Solar Longitudes	295	(14)
Leon Kocharov
Jarmo Torsti
Timo Laitine
Matti Teittinen
Radio versus EUV/X-Ray Observations of the Solar Atmosphere	309	(22)
S. M. White
Non-Uniqueness of Atmospheric Modeling	331	(20)
Philip G. Judge
Scott W. McIntosh
Calibrated H I Lyman α Observations with Trace	351	(12)
B. N. Handy
T. D. Tarbell
C. J. Wolfson
C. M. Korendyke
A. Vourlidas
Measuring the Physical Properties of the Solar Corona: Results from Sumer/Soho and Trace	363	(16)
H. P. Warren
Observations of Transition Region Plasma	379	(30)
Pal Brekke
What is Moss?	409	(10)
T. E. Berger
B. De Pontieu
L. Fletcher
C. J. Schrijver
T. D. Tarbell
A. M. Title
Dynamics of Transition Region `Moss' at High Time Resolution	419	(18)
B. De Pontieu
T. E. Berger
C. J. Schrijver
A. M. Title
On the Sunspot Transition Region	437	(22)
P. Maltby
N. Brynildsen
T. Fredvik
O. Kjeldseth-Moe
K. Wilhelm
Variations of Photospheric Magnetic Field Associated with Flares and CMEs	459	(8)
A. G. Kosovichev
V. V. Zharkova
Observations of a Propagating Disturbance in Trace	467	(18)
M. J. Wills-Davey
B. J. Thompson
Ion Cyclotron Waves, Instabilities and Solar Wind Heating	485
Xing Li
Shadia R. Habbal