Recent work suggests that the mass-loss rate of the primary star ηA in the massive colliding
wind binary η Carinae dropped by a factor of 2–3 between 1999 and 2010. We present …

The X-ray emission from the supermassive star η Car is simulated using a 3D model of the
wind–wind collision. In the model the intrinsic X-ray emission is spatially extended and …

Three-dimensional adaptive mesh refinement hydrodynamical simulations of the wind–wind
collision between the enigmatic supermassive star η Car and its mysterious companion star …

The highly eccentric binary system Eta Carinae (η Car) shows numerous time-variable
emission and absorption features. These observational signatures are the result of …

Spectral observations of the massive colliding wind binary Eta Carinae show phase-
dependent variations, in intensity and velocity, of numerous helium emission and absorption …

We report continued monitoring of the superluminous binary system η Car by the
Proportional Counter Array on the Rossi X-ray Timing Observatory (RXTE) through the 2009 …

The very massive star system η Carinae exhibits regular 5.54 yr (2024 d) period disruptive
events in wavebands ranging from the radio to X-ray. There is a growing consensus that …

The exact nature of η Carinae is still an open issue. Strict periodicity in the light curves at
several wavelengths seem to point to a binary system, but the observed radial velocities …

We have analyzed high spatial, moderate spectral resolution observations of η Carinae (η
Car) obtained with the STIS from 1998.0 to 2004.3. The data were obtained at discrete times …

Eta Carinae, the closest, active, massive binary containing a highly unstable Luminous Blue
Variable, exhibits expanding, compressed wind shells, seen in emission, that are spatially …