Magnetic Field Properties of Solar X-Ray Jets |
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Authors: | Shimojo Masumi Shibata Kazunari Harvey Karen L |
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Institution: | (1) National Astronomical Observatory, Mitaka, Tokyo, 181, Japan;(2) Solar Physics Research Corporation, Tucson, AZ, 85718, U.S.A. |
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Abstract: | From a list of X-ray jets made by Shimojo et al. (1996), we selected events for which there were magnetic field data from NSO/Kitt Peak. Using co-aligned SXT and magnetograms, we examined the magnetic field properties of X-ray jets. We found that 8% of the jets studied occurred at a single pole (SP), 12% at a bipole (BP), 24% in a mixed polarity (MP) and 48% in a satellite polarity (ST). If the satellite polarity region is the same as the mixed polarity region, 72% of the jets occurred at the (general) mixed polarity region.We also investigated the magnetic evolution of jet-producing areas in active regions NOAA 7067, NOAA 7270, and NOAA 7858. It is found that X-ray jets favored regions of evolving magnetic flux (increasing or decreasing). |
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