Astrophysicists are increasingly taking into account the effects of orbiting companions on
stellar evolution. New discoveries have underlined the role of binary star interactions in a …

ABSTRACT Hubble Space Telescope and ground-based observations of the Type IIn
supernova (SN) 2010jl are analyzed, including photometry and spectroscopy in the …

We present multi-epoch photometry and spectroscopy of a light echo from η Carinae's 19th
century Great Eruption. This echo's light curve shows a steady decline over a decade …

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 …

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

We present two-dimensional (2D) radiative transfer modelling of the Eta Carinae binary
system accounting for the presence of a wind–wind collision (WWC) cavity carved in the …

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 …

We present a three-dimensional (3D) dynamical model for the broad [Fe iii] emission
observed in η Carinae using the Hubble Space Telescope/Space Telescope Imaging …

We reconstruct the evolution of η Car in the last two centuries under the assumption that the
two 19th century eruptions were triggered by periastron passages and through this …

ABSTRACT Eta Carinae (η Car) is an extremely massive binary system in which rapid
spectrum variations occur near periastron. Most notably, near periastron the He ii λ4686 line …