# On the influence of the companion star in Eta Carinae: 2D radiative transfer modeling of the ultraviolet and optical spectra

@article{Groh2012OnTI,
title={On the influence of the companion star in Eta Carinae: 2D radiative transfer modeling of the ultraviolet and optical spectra},
author={Jose H Groh and D. John Hillier and Thomas I. Madura and G. Weigelt Max Planck Institute for Radioastronomy and H Germany and University of Pittsburgh and Usa},
journal={arXiv: Solar and Stellar Astrophysics},
year={2012}
}
• J. Groh, +4 authors Usa
• Published 2012
• Physics
• arXiv: Solar and Stellar Astrophysics
We present 2D radiative transfer modeling of the Eta Carinae binary system accounting for the presence of a wind-wind collision (WWC) cavity carved in the optically-thick wind of the primary star. By comparing synthetic line profiles with HST/STIS spectra obtained near apastron, we show that the WWC cavity has a strong influence on multi-wavelength diagnostics. This influence is regulated by the modification of the optical depth in the continuum and spectral lines. We find that H-alpha, H-beta… Expand

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