The historical light curve of the 19th century 'Great Eruption'of η Carinae provides a striking
record of the violent instabilities encountered by massive stars. In this paper, we report and …

Context. η Carinae is the colliding wind binary with the highest mass-loss rate in our Galaxy
and the only one in which hard X-ray emission has been detected. Aims. η Carinae is …

Context. The most massive binary system Eta Carinae has been recently established as a
gamma-ray source by the AGILE and Fermi-LAT detectors. The high energy spectrum of this …

ABSTRACT We monitored Eta Carinae with the Hubble Space Telescope WFPC2 and
Gemini GMOS throughout the 2009 spectroscopic event, which was expected to differ from …

ABSTRACT We report new Hubble Space Telescope/Space Telescope Imaging
Spectrograph observations that map the high-ionization forbidden line emission in the inner …

Using the archives of the American Association of Variable Stars Observers and our own
data, we analyse the long-term variability of several well-studied luminous blue variables …

Massive stars possess powerful stellar winds. Wind-wind collision in a massive star binary
system generates a region of thermalized plasma which may emit prolifically at X-ray …

We use recent observations of the He i λ10 830 Å absorption line and 3D hydrodynamical
numerical simulations of the winds collision to strengthen the case for an orientation of the …

Eta Car is generally accepted to be a binary system comprised of two massive stars with a
total luminosity of Ltot≥ 5× 106 Lo and total mass of at least 110 Mo. Most authors agree on …

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 …