Steady Heating Model of an Active Region Core

Details Steady Heating Model of an Active Region Core Steady Heating Model of an Active Region Core

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640711w&link_type=abstract

American Astronomical Society, AAS Meeting #216, #407.11; Bulletin of the American Astronomical Society, Vol. 41, p.861

Astronomy and Astrophysics

Astronomy

Scientific paper

If the heating in an active region core is steady, the base pressure of loop as well as its loop length determines exactly the apex temperature, density and required heating rate. In this research, we analyze data of an active region core that is observed with both Hinode XRT and EIS instruments. We use the density sensitve Fe XII line ratios to determine the base pressure of the loops and geometrical constraints to determine the loop lengths. We use the hotter spectral lines coupled with the XRT filter intensities to determine the differential emission measure (DEM) of the core plasma. Using the base pressures and loop lengths, we populate loops in a model active region to determine a model DEM. We then compare this emission measure distribution to the observed distribution.

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