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

Bibcode
1989SoPh..124..219G
DOI
10.1007/BF00156267
de la Rosa, I. G.; Aballe, M. A.; Collados, M.
Bibliographical reference

Solar Physics (ISSN 0038-0938), vol. 124, no. 2, 1989, p. 219-226. Research supported by CAICYT.

Advertised on:
9
1989
Number of authors
3
IAC number of authors
3
Citations
7
Refereed citations
7
Description
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 II 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.
Type
Refereed
Solar activity
Solar corona
Solar observatories

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