Coronal Structures in Yellow Giant Stars

Details Coronal Structures in Yellow Giant Stars Coronal Structures in Yellow Giant Stars

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1129h&link_type=abstract

Chandra Proposal ID #04200113

Physics

Chandra Proposal Id #04200113

Scientific paper

With three ACIS-S/HETG observations of selected yellow giants of similar masses (equal to about 2 solar masses), we will study the role of "solar-like" magnetic dynamos in generating the X-ray coronae of such stars and explore the response of the coronae to changes in internal stellar structure. Spectroscopic plasma density diagnostics derived from the HETG X-ray spectra will be used to infer characteristics of the coronal magnetic structures of these stars in selected post-main-sequence evolutionary stages, testing whether the size of X-ray emitting structures changes as giants of approximately equal mass evolve from warmer to cooler temperatures through the Hertzsprung gap.

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