Magnetic properties of X-ray bright points

Details Magnetic properties of X-ray bright points Magnetic properties of X-ray bright points

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977soph...53..111g&link_type=abstract

Solar Physics, vol. 53, July 1977, p. 111-121.

Physics

92

Magnetic Properties, Solar Magnetic Field, Solar Spectra, Solar X-Rays, Magnetic Flux, Magnetometers, Skylab Program

Scientific paper

Using high-resolution Kitt Peak National Observatory magnetograms and sequences of simultaneous S-054 soft X-ray solar images, the properties of X-ray bright points (XBP) and ephemeral active regions (ER) are compared. All XBP appear on the magnetograms as bipolar features, except for very recently emerged or old and decayed XBP. The separation of the magnetic bipoles is found to increase with the age of the XBP, with an average emergence growth rate of 2.2 plus or minus 0.4 km per sec. The total magnetic flux in a typical XBP living about 8 hr is found to be about two times ten to the nineteenth power Mx. A proportionality is found between XBP lifetime and total magnetic flux, equivalent to about ten to the twentieth power Mx per day of lifetime.

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