X-Ray Jet Dynamics in a Polar Coronal Hole Region

Details X-Ray Jet Dynamics in a Polar Coronal Hole Region X-Ray Jet Dynamics in a Polar Coronal Hole Region

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009soph..254..259f&link_type=abstract

Solar Physics, Volume 254, Issue 2, pp.259-269

Physics

22

Coronal Holes, Jets, Magnetic Fields, Models, Magnetic Reconnection, Observational Signatures

Scientific paper

New X-ray observations of the north polar region taken from the X-ray Telescope (XRT) of the Hinode spacecraft are used to analyze several time sequences showing small loop brightenings with a long ray above. We focus on the formation of the jet and discuss scenarios to explain the main features of the events: the relationship with the expected surface magnetism, the rapid and sudden radial motion, and possibly the heating, based on the assumption that the jet occurs above a null point of the coronal magnetic field. We conclude that 2-D reconnection models should be complemented in order to explain the observational details of these events and suggest that alternative scenarios may exist.

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