Polar Exploration and Coronal Structure in the Active Binary HR 5110

Details Polar Exploration and Coronal Structure in the Active Binary HR 5110 Polar Exploration and Coronal Structure in the Active Binary HR 5110

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2344o&link_type=abstract

Chandra Proposal ID #09200644

Physics

Chandra Proposal Id #09200644

Scientific paper

Overwhelming evidence exists for the importance of polar regions in controlling stellar atmospheric structure and dynamics in active binary systems. Uncertainties about the geometry of coronal emission have made conclusions about coronal structures on such stars ambiguous. We seek Chandra, VLA and VLBA observations of the nearly pole-on active binary system HR 5110 in order to investigate coronal structures without such ambiguity. An 80 ks Chandra observation will constrain thermal coronal volumes through electron densities; radio observations will constrain nonthermal coronal volumes directly, and allow an estimation of the relative importance of thermal and nonthermal plasma in controlling and structuring active stellar coronae.

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