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Eta Carinae's Thermal X-ray Tail Measured with XMM-Newton and NuSTAR
Kenji Hamaguchi, Michael F. Corcoran, Theodore R. Gull +12
The evolved, massive highly eccentric binary system, eta Carinae, underwent a periastron passage in the summer of 2014. We obtained two coordinated X-ray observations with XMM-Newt…
He II 4686 emission from the massive binary system in Car: constraints to the orbital elements and the nature of the periodic minima
M. Teodoro, A. Damineli, B. Heathcote +27
η Carinae is an extremely massive binary system in which rapid spectrum variations occur near periastron. Most notably, near periastron the He II line increases rapidly in…
Multi-Wavelength Implications of the Companion Star in Eta Carinae
Thomas I. Madura, Theodore R. Gull, Jose H. Groh +4
Eta Carinae is considered to be a massive colliding wind binary system with a highly eccentric (e \sim 0.9), 5.54-yr orbit. However, the companion star continues to evade direct de…