Bright Points and Subflares in UV Lines and in X-Rays

Details Bright Points and Subflares in UV Lines and in X-Rays Bright Points and Subflares in UV Lines and in X-Rays

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998msfc.rept.....r&link_type=abstract

Technical Report, NASA Marshall Space Flight Center Huntsville, AL United States

Computer Science

Ultraviolet Spectrometers, Magnetic Field Inversions, Magnetic Signatures, Photosphere, X Rays, Connectors, Extrapolation, Fourier Transformation, Polarity, Regions

Scientific paper

We have analysed an active region which was observed in Hα (MSDP), UV lines (SMM/UVSP), and in X rays (SMM/HXIS). In this active region there were only a few subflares and many small bright points visible in UV and in X rays. Using an extrapolation based on the Fourier transform we have computed magnetic field lines connecting different photospheric magnetic polarities from ground-based magnetograms. Along the magnetic inversion lines we find 2 different zones: 1. a high shear region (less than 70 degrees) where subflares occur 2. a low shear region along the magnetic inversion line where UV bright points are observed.

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