X-ray bright points are believed to result from the interaction of two small magnetic features of opposite polarity. As these features move apart, flux interconnecting them can become disconnected and joined to the overlying magnetic field. For features moving toward one another this process will occur in reverse. In either case this magnetic reconnection occurs at the separator field line. Assuming that reconnection can occur only after it is "triggered," the process will heat the plasma nearby the separator, thereby giving rise to the X-ray brightening. This can be quantified using a recent model of current sheet formation and reconnection along separators. Application of this model predicts the heating from reconnection based on the observable magnetic quantities of flux, field strength, and polar separation. In addition, the model predicts morphological aspects of the bright points such as the apparent angle between the axes of the X-ray loop and the magnetic bipole.
机构:
Air Force Res Lab, Space Vehicles Directorate, Kirtland Afb, NM 87123 USAUniv Glasgow, Sch Phys & Astron, Univ Ave, Glasgow G12 8QQ, Scotland
White, Stephen M.
Smith, David M.
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Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USAUniv Glasgow, Sch Phys & Astron, Univ Ave, Glasgow G12 8QQ, Scotland
机构:
Natl Astron Observ, Mitaka, Tokyo 1818588, Japan
Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, JapanNatl Astron Observ, Mitaka, Tokyo 1818588, Japan
Ueda, K.
Kano, R.
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Natl Astron Observ, Mitaka, Tokyo 1818588, JapanNatl Astron Observ, Mitaka, Tokyo 1818588, Japan
Kano, R.
Tsuneta, S.
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Natl Astron Observ, Mitaka, Tokyo 1818588, JapanNatl Astron Observ, Mitaka, Tokyo 1818588, Japan
Tsuneta, S.
Shibahashi, H.
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Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, JapanNatl Astron Observ, Mitaka, Tokyo 1818588, Japan
机构:
New Jersey Inst Technol, Ctr Solar Terr Res, Space Weather Res Lab, Newark, NJ 07102 USANew Jersey Inst Technol, Ctr Solar Terr Res, Space Weather Res Lab, Newark, NJ 07102 USA
Liu, Chang
Wang, Haimin
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New Jersey Inst Technol, Ctr Solar Terr Res, Space Weather Res Lab, Newark, NJ 07102 USANew Jersey Inst Technol, Ctr Solar Terr Res, Space Weather Res Lab, Newark, NJ 07102 USA