Constraining the absolute orientation of η Carinae’s binary orbit: a 3D dynamical model for the broad [Fe iii] emission

  title={Constraining the absolute orientation of $\eta$ Carinae’s binary orbit: a 3D dynamical model for the broad [Fe iii] emission},
  author={Thomas I. Madura and T R Gull and Stanley P. Owocki and Jose H Groh and Atsuo T. Okazaki and Christopher Michael Post Russell},
  journal={Monthly Notices of the Royal Astronomical Society},
We present a three-dimensional (3-D) dynamical model for the broad [Fe III] emission observed in Eta Carinae using the Hubble Space Telescope/Space Telescope Imaging Spectrograph (HST/STIS). This model is based on full 3-D Smoothed Particle Hydrodynamics (SPH) simulations of Eta Car's binary colliding winds. Radiative transfer codes are used to generate synthetic spectro-images of [Fe III] emission line structures at various observed orbital phases and STIS slit position angles (PAs). Through a… Expand
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