SOHO Polar Coronal Jets and Hinode Polar X-ray Ejections

Details SOHO Polar Coronal Jets and Hinode Polar X-ray Ejections SOHO Polar Coronal Jets and Hinode Polar X-ray Ejections

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12.2.94d&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

The SOHO polar coronal jets were first observed by SOHO instruments (EIT, LASCO, UVCS) during the previous solar minimum in 1996. They were small, fast coronal eruptions originating from the flaring UV bright points within large polar coronal holes. Data analysis and modeling provided estimates for jet plasma conditions, dynamics, evolution of the electron temperature and heating rate. In the current minimum of solar activity large polar holes are again dominating structures in the solar corona. Hinode observed there a number of polar X-ray ejections occurring with high frequency - about 60 events per day. We will present observations and compare physical properties of the SOHO and Hinode polar coronal jets. We will also discuss possible relation of these two types of solar ejections.

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