I examine some aspects of the interaction between the massive star η Carinae and its
companion, in particular during the eclipse-like event, known as the spectroscopic event or …

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 examine the influence of the gravity of the companion (the secondary) to the massive
primary star η Carinae on the winds blown by the primary and the secondary. The two winds …

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 …

I argue that the large-scale departure from axisymmetry of the η Carinae nebula can be
explained by the binary star model of η Carinae. The companion diverts the wind blown by …

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 …

We show that the rapid and large decrease in the intensity of high-ionization emission lines
from the η Carinae massive binary system can be explained by the accretion model. These …

We propose that the decline in the near-IR flux from the massive binary system η Carinae
during the spectroscopic event might be explained by accreted mass that absorbs the …

Damineli et al.(1997)[NewA, 2, 107] have recently proposed a specific binary model for η
Carinae. It is based on wavelength shifts in hydrogen and helium emission lines, and may …

We report the recovery of a spectroscopic event in η Carinae in 1997/1998 after a prediction
by Damineli in 1996. A true periodicity with P= 2020±5 days (0.2% uncertainty) is obtained …