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The 5.52 Year Cycle of Eta Carinae: BeppoSAX Detection of Variable Hard (> 10 keV) X-Ray Emission
I have discovered spectroscopic variations correlated with the photometric near-infrared (NIR) light curve in η Carinae. The fading of the high-excitation lines is coincident with the peaks in the
The periodicity of the η Carinae events
Extensive spectral observations of η Carinae over the last cycle, and particularly around the 2003.5 low-excitation event, have been obtained. The variability of both narrow and broad lines, when
X-Ray Monitoring of η Carinae: Variations on a Theme
We present monitoring observations by the Rossi X-Ray Timing Explorer of the 2–10 keV X-ray emission from the supermassive star η Carinae from 1996 through late 2003. These data cover more than one
The X-Ray Light Curve of η Carinae: Refinement of the Orbit and Evidence for Phase-dependent Mass Loss
We solve the Rossi X-Ray Timing Explorer X-ray light curve of the extremely luminous and massive star η Carinae with a colliding-wind emission model to refine the ground-based orbital elements. The
3D modelling of the colliding winds in η Carinae – evidence for radiative inhibition
The X-ray emission from the super-massive star η Car is simulated using a three dimensional 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 are presented which
Recurrent X-Ray Emission Variations of η Carinae and the Binary Hypothesis
Recent studies by Damineli and coworkers suggest that the supermassive star η Carinae may have a massive stellar companion, although the dense ejecta surrounding the star make this claim hard to test
η Carinae across the 2003.5 Minimum: Spectroscopic Evidence for Massive Binary Interactions
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 covering an entire
A multispectral view of the periodic events in η Carinae
A full description of the 5.5-yr low excitation events in η Carinae is presented. We show that they are not as simple and brief as previously thought, but a combination of two components. The first,
The UV Scattering Halo of the Central Source Associated with η Carinae
We have made an extensive study of the UV spectrum ofCarinae and find that we do not directly observe the star and its wind in the UV. Because of dust along our line of sight, the UV light that we