Research Note
Inter-Network magnetic fields observed during the minimum of the solar cycle
Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain
Corresponding author: jos@ll.iac.es
Received:
26
June
2003
Accepted:
29
September
2003
We analyze a time series of high angular resolution magnetograms
of quiet Sun Inter-Network (IN) magnetic fields. These
magnetograms have a spatial resolution better than 0
5, a noise
of some 20 G, and they have been obtained at the disk center
during the minimum of the
solar cycle. The IN regions show a typical unsigned flux density of the
order of 15 G. Signals occur, preferentially, in the intergranular
lanes, and the strongest signals trace a network with a scale similar
to the mesogranulation. All these features are consistent with the IN magnetograms by [CITE], obtained during the maximum
of the solar cycle. Consequently, the unsigned magnetic flux of the
structures that give rise to
the IN polarization signals does not seem to
undergo large variations during the solar cycle.
Key words: Sun: granulation / Sun: magnetic fields / Sun: photosphere
© ESO, 2003