From Photosphere to Corona: Magnetic Fields and Coronal Emission from the Active Binary CC Eridani

Details From Photosphere to Corona: Magnetic Fields and Coronal Emission from the Active Binary CC Eridani From Photosphere to Corona: Magnetic Fields and Coronal Emission from the Active Binary CC Eridani

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1400o&link_type=abstract

Chandra Proposal ID #05200662

Physics

Chandra Proposal Id #05200662

Scientific paper

We propose to observe the active binary system CC Eridani at X-ray, optical, and radio wavelengths to study the relationship between magnetic field structure (observed in the photosphere and extrapolated into the corona), thermal coronal emission, and the nonthermal electron distribution. A 135 ks Chandra ACIS-S+HETGS observation will elucidate thermal coronal structure through use of the differential emission measure, and trends of electron pressure with temperature; 12 hours of VLA observations will investigate nonthermal coronal structures. Simultaneous Zeeman Doppler Imaging using ground-based telescopes determines the three dimensional structure of the photospheric field; potential field extrapolations will test consistency with our radio/X-ray observations.

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