The Density of Coronal Null Points from Hinode and MDI

Details The Density of Coronal Null Points from Hinode and MDI The Density of Coronal Null Points from Hinode and MDI

2009-01-07

arxiv.org/abs/0901.0865v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Scientific paper

Magnetic null points can be located numerically in a potential field extrapolation or their average density can be estimated from the Fourier spectrum of a magnetogram. We use both methods to compute the null point density from a quiet Sun magnetogram made with Hinode's NFI and from magnetograms from SOHO's MDI in both its high-resolution and low-resolution modes. All estimates of the super-chromospheric column density (z>1.5 Mm) agree with one another and with the previous measurements: 0.003 null points per square Mm of solar surface.

Affiliated with

Also associated with

No associations

Rating

The Density of Coronal Null Points from Hinode and MDI 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 Density of Coronal Null Points from Hinode and MDI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Density of Coronal Null Points from Hinode and MDI will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-61695