Hetgs Spectroscopy of a Coronally Active Contact Binary, VW CEP

Details Hetgs Spectroscopy of a Coronally Active Contact Binary, VW CEP Hetgs Spectroscopy of a Coronally Active Contact Binary, VW CEP

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1153h&link_type=abstract

Chandra Proposal ID #04200138

Physics

Chandra Proposal Id #04200138

Scientific paper

Short-period binaries represent the extreme in rotational-dynamo generated coronae. These stars are important for probing the origin and nature of coronae in the regimes of rapid rotation and activity saturation. A relatively bright, partially eclipsing, and very active object is VW Cep (P=0.28d). We will derive emission measure distributions and abundances from diagnostics currently available only in HETGS spectra. We will also examine spatial distributions through flux modulation and Doppler shifts. Two hypotheses exist for loop sizes; HETGS spectra will distinguish between these with density and volume estimates.

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