Doppler spectroscopy is a powerful tool for discovering and characterizing exoplanets. For
decades, the standard approach to extracting radial velocities (RVs) has been to cross …

Aims. Colliding wind binary systems have long been suspected to be high-energy (HE; 100
MeV< E< 100 GeV) γ-ray emitters. η Car is the most prominent member of this object class …

The binary system η Carinae is a unique laboratory that facilitates the study of particle
acceleration to high energies under a wide range of conditions, including extremely high …

Determining accurate orbits of binary stars with powerful winds is challenging. The dense
outflows increase the effective photospheric radius, precluding direct observation of the …

The complex circumstellar environment around the massive binary and luminous blue
variable η Carinae is known to harbor numerous light molecules, emitting most strongly in …

We present images of η Carinae in the recombination lines H30α and He30α and the
underlying continuum with 50 mas resolution (110 au), obtained with ALMA. For the first …

We present a model for the non-thermal emission from a colliding-wind binary. Relativistic
protons and electrons are assumed to be accelerated through diffusive shock acceleration …

$\eta $~ Car is one of the most massive stars in the Galaxy. It underwent a massive eruption
in the 19th century, which produced the impressive bipolar Homunculus nebula now …

This contribution presented high-resolution numerical simulations of the colliding wind
system η Carinae, showing accretion of the primary wind onto the secondary star close to …

Aims. Colliding wind binary systems have long been suspected to be high-energy (HE; 100
MeV< E< 100 GeV) γ-ray emitters. η Car is the most prominent member of this object class …