Multi-Instrument Study Of The Evolution Of An Active Region

Details Multi-Instrument Study Of The Evolution Of An Active Region Multi-Instrument Study Of The Evolution Of An Active Region

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999esasp.446..571r&link_type=abstract

8th SOHO Workshop: Plasma Dynamics and Diagnostics in the Solar Transition Region and Corona. Proceedings of the Conference hel

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We follow, for about half a solar rotation, the dynamic evolution of an acive region (AR 8151) which exhibited a single heading sunspot and a more diffuse following magnetic flux and a filament eruption on 12 February 1998 at 13:51. For longitudinal magnetic observations, we use the MDI (SoHO) magnetograph and for vector magnetic fields the IVM (Mees Solar Observatory, Hawaii). The dynamic evolution is derived from time-sequence images in the Fe XII line (195 Angstrom) from EIT (SoHO). Density and abundance diagnostic of the filament are obtained from SoHO spectrometers (CDS, SUMER).

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