We present the results of extensive observations by the gamma-ray AGILE satellite of the
Galactic region hosting the Carina nebula and the remarkable colliding wind binary Eta …

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 …

The highly eccentric binary system, η Car, provides clues to the transition of massive stars
from hydrogen–burning via the CNO cycle to a helium–burning evolutionary state. The fast …

Context. The periodicity of 5.5 years for some observational events occurring in η Carinae
manifests itself across a large wavelength range and has been associated with its binary …

We present the Suzaku results of Carinae in the 5–50 keV range conducted twice around
the apastron in 2005 August for 50 ks and in 2006 February for 20 ks. The X-ray Imaging …

We study the usage of the X-ray light curve, column density towards the hard X-ray source,
and emission measure (density square times volume), of the massive binary system η …

We use the accretion model to explain the early exit of η Car from its 2009 X-ray minimum. In
the accretion model, the secondary star accretes mass from the primary wind near periastron …

We propose an explanation for the puzzling appearance of a wide blue absorption wing in
the He iλ10830 Å P Cygni profile of the massive binary star η Car several months before …

In the last years, a major progress has taken place in the detection of γ-ray emission from
stellar systems. The Cherenkov telescopes HESS, MAGIC and VERITAS have contributed to …

The 6307A emission line in the spectrum of Eta Car (Martin et al. 2006) is blue-shifted [S III]
6313A emission originating from the outer wind structures of the massive binary system. We …