Colliding Wind Geometry and Dynamics in Eta Carinae: A New Cycle

Details Colliding Wind Geometry and Dynamics in Eta Carinae: A New Cycle Colliding Wind Geometry and Dynamics in Eta Carinae: A New Cycle

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2114c&link_type=abstract

Chandra Proposal ID #08200821

Astronomy and Astrophysics

Astronomy

Chandra Proposal Id #08200821

Scientific paper

X-rays from the supermassive star Eta Car are produced along a ``bow shock'' due to the collision of the wind from the primary star with the faster wind from a hotter, less luminous companion. The 2-10 keV X-ray emission is unique since it's the only radiation which can be clearly localized in the system and it acts as an in-situ probe of the primary star. With the tragic loss of the X-ray Spectrometer on Suzaku, for the foreseeable future the HETGS is the only instrument capable of diagnosing the line emission in this crucial spectral region. We propose to obtain 1 HETGS spectrum of Eta Car in AO8 to compare to our previous HETGS spectra and to provide a clearer measure of the change in the flow as the star approaches periastron/X-ray maximum in January 2009.

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