Periodic oscillations in the north-south asymmetry of the solar magnetic field

Details Periodic oscillations in the north-south asymmetry of the solar magnetic field Periodic oscillations in the north-south asymmetry of the solar magnetic field

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...418l..17k&link_type=abstract

Astronomy and Astrophysics, v.418, p.L17-L20 (2004)

Astronomy and Astrophysics

Astrophysics

43

Sun: Photosphere, Sun: Magnetic Fields, Sun: Sunspots, Sun: Activity

Scientific paper

We report on significant periodic variations of the magnetic activity between the north and south hemisphere of the Sun. For this purpose, we have investigated the north-south asymmetry of two solar data sets, namely the Kitt Peak synoptic Carrington rotation maps of the photospheric magnetic field (1975-2003) and monthly averaged sunspot areas (1874-2003). Using Fourier and wavelet analysis, we have found a regular pattern of pronounced oscillations with periods of 1.50 ± 0.04 yr, 1.79 ± 0.06 yr and 3.6 ± 0.3 yr in the magnetic flux asymmetry. The former two periods are related to a process which leads to a gradual shift in the excess magnetic flux from north to south or vice versa. Additional periods of 43.4 ± 7.1 yr (twice the magnetic cycle) and 320-329 days were detected in the sunspot asymmetry.

Affiliated with

Also associated with

No associations

Rating

Periodic oscillations in the north-south asymmetry of the solar magnetic field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Periodic oscillations in the north-south asymmetry of the solar magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Periodic oscillations in the north-south asymmetry of the solar magnetic field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1385906