The Structure of Eta Carinae's Central Core

Details The Structure of Eta Carinae's Central Core The Structure of Eta Carinae's Central Core

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9679n&link_type=abstract

HST Proposal ID #9679

Astronomy and Astrophysics

Astronomy

Hst Proposal Id #9679

Scientific paper

We return to Eta Carinae. The extreme luminous blue variable Eta Carinae is one of the most studied yet mysterious astronomical objects. In March 2002 we observed it at a higher angular resolution that ever before with HST's FGS1r. A high quality interferogram was obtained of the object's central core. The data are best modeled as TWO point sources embedded in significant nebulosity. The sources differ in brightness by less than one magnitude and have a projected angular separation of about 33 mas. The goal of this DD proposal is to re-observe Eta Carinae with HST/FGS1r but at different, yet specific, spacecraft roll angles. This will change the projection angle of Eta Car within the FGS and will allow us to confirm and refine our two point source model of Eta Car's central core.

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