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 …

We report high-precision X-ray monitoring observations in the 0.4–10 keV band of the
luminous, long-period colliding wind binary Eta Carinae, up to and through its most recent X …

Aims. Observations of high-energy γ-rays recently revealed a persistent source in spatial
coincidence with the binary system η Carinae. Since modulation of the observed γ-ray flux …

The massive binary system Eta Carinae and the surrounding H ii complex, the Carina
nebula, are potential particle acceleration sites from which very high energy (VHE; E≥ 100 …

Context. Colliding-wind binaries are massive stellar systems featuring strong, interacting
winds. These binaries may be actual particle accelerators, making them variable γ-ray …

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 …

Aims. The binary system η Carinae has completed its first 5.54 y orbit since the beginning of
science operation of the Fermi Large Area Telescope (LAT). We are now able to investigate …

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

ABSTRACT X-ray emission from the supermassive binary system η Car declines sharply
around periastron. This X-ray minimum has two distinct phases—the lowest flux phase in the …

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 …