The Granular Magnetic Fields of the Quiet Sun

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

140

Polarization, Sun: Granulation, Sun: Infrared, Sun: Magnetic Fields

Scientific paper

We report new observations that combine high-precision infrared polarimetry and high-resolution imagery in the visible to demonstrate that most of the quiet solar surface contains a measurable magnetic field. We found that when observed at 1 arcsec^2 resolution, 68% of the observed area contains magnetic flux higher than 5x10^15 Mx (corresponding to an apparent average field of 1 G). The majority of these magnetic features have magnetic flux below 5x10^16 Mx. Their magnetic field strengths range from below 200 to 1000 G, which means that their filling factors are on the order of 1%. The spatial distribution and time evolution of these magnetic features are closely associated with the solar granulation. The properties of these weak granular magnetic features we observed differ from those of the intranetwork fields described in earlier observations. We also observed the formation and disappearance of a kilogauss magnetic feature associated with the development of intergranular lanes, which may be evidence of convective collapse.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

The Granular Magnetic Fields of the Quiet Sun 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 The Granular Magnetic Fields of the Quiet Sun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Granular Magnetic Fields of the Quiet Sun will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1444970

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.