Thermal Properties of Coronal Cavities as Observed by the X-Ray Telescope on Hinode

Details Thermal Properties of Coronal Cavities as Observed by the X-Ray Telescope on Hinode Thermal Properties of Coronal Cavities as Observed by the X-Ray Telescope on Hinode

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640511r&link_type=abstract

American Astronomical Society, AAS Meeting #216, #405.11; Bulletin of the American Astronomical Society, Vol. 41, p.891

Astronomy and Astrophysics

Astronomy

Scientific paper

Coronal cavities are voids in coronal emission often observed above high latitude filament channels. Sometimes, these cavities have areas of bright X-ray emission in their centers (i.e. Hudson et al
1999). In this study, we use data from the X-ray Telescope (XRT) on Hinode to examine the thermal emission properties of two kinds of coronal cavities, those with and without enhanced emission at their centers. For cavities with bright X-ray emission in their centers, we find evidence for elevated temperatures in the cavity center. We find no obvious correlation between the presence of
bright cavity cores and filament presence or eruption.
This work is part of the effort of the International Space Science Institute International Team on Prominence Cavities

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