Magnetohydrodynamic modeling of coronal bright points

Journal Article · Sat Aug 01 00:00:00 EDT 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165514· OSTI ID:5831003

Waldron, W L; Mullan, D J

Coronal bright points are known to be magnetic in nature. A two-dimensional MHD code was devleoped to investigate the rsponse of a stratified atmosphere to a localized magnetic structure. If a bright point occurs at a region where flux tubes of opposite polarity have encountered by chance it is found that, in the presence of stratification, a net upward mass flux results. Upflow velocities of up to one half of the Alfven speed are produced. The implications of the results for mass outflows from bright points in coronal holes are discussed. 24 references.

• Research Organization: Applied Research Corp., Landover, MD; Franklin Institute, Newark, DE
• OSTI ID: 5831003
• Journal Information: Astrophys. J.; (United States), Vol. 319
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLAR CORONA
MAGNETOHYDRODYNAMICS
CHEMICAL COMPOSITION
MAGNETIC FIELDS
MASS TRANSFER
NUMERICAL ANALYSIS
PHOTOSPHERE
SOLAR WIND
STAR MODELS
TWO-DIMENSIONAL CALCULATIONS
ATMOSPHERES
FLUID MECHANICS
HYDRODYNAMICS
MATHEMATICAL MODELS
MATHEMATICS
MECHANICS
SOLAR ACTIVITY
SOLAR ATMOSPHERE
STELLAR ATMOSPHERES
STELLAR CORONAE
640104* - Astrophysics & Cosmology- Solar Phenomena