An example of the cancellation of magnetic fields during the decay of an active region

A case of cancellation of magnetic fields is observed during the decay of a small active region. Three different sources of information were simultaneously used: high resolution magnetograms, chromospheric Ca I I filtergrams and transverse velocity fields. A magnetic structure is apparently dragged...

Full description

Saved in:
Bibliographic Details
Published in:Solar physics 1989-09, Vol.124 (2), p.219-226
Main Authors: GARCIA DE LA ROSA, J. I, ABALLE, M. A, COLLADOS, M
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
Other topics on the solar system
Solar system
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A case of cancellation of magnetic fields is observed during the decay of a small active region. Three different sources of information were simultaneously used: high resolution magnetograms, chromospheric Ca I I filtergrams and transverse velocity fields. A magnetic structure is apparently dragged to the network by the supergranular velocity field while it splits into two. There, they meet another structure with opposite magnetic polarity. After a period of coexistence, the magnetic pairs vanish, leaving no trace of either magnetic or chromospheric structures.
ISSN:0038-0938
1573-093X
DOI:10.1007/BF00156267